Ceres Analytical Laboratory, Inc.
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Statement of Qualifications
Ceres Analytical Laboratory, Inc.
Prepared by:
James M. Hedin
Director of Operations
4919 Windplay Dr., Suite 1
El Dorado Hills, CA 95762
(916)932-5011
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Table of Contents
Section 1. Introduction
3
Section 2. Analytical Services
4
Section 3. Laboratory Facility
6
Section 4. Equipment
8
Section 5. Quality Assurance
9
Section 6. Project Experience
14
Section 7. Company Structure
15
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Section 1
Introduction
Ceres Analytical Laboratory, Inc., founded in 2011, is a laboratory
specializing in high-resolution gas chromatography/ high-resolution mass
spectrometry (HRGC/HRMS). Ceres Analytical Laboratory’s goal is to provide the
highest quality data with a rapid turnaround time to each and every client.
Ceres Analytical Laboratory specializes in the analysis of polychlorinated
dioxins and furans (PCDDs/PCDFs) using high resolution mass spectrometry
(HRMS) utilizing precise governmental analytical methods such as EPA method
1613, 8290, 8280, and NCASI method 551.
Ceres Analytical Laboratory provides integrity, reliability and accountability
expected in the environmental industry. Our experience and size enables allows
Ceres Analytical Laboratory to provide high quality data and impeccable service to
all our clients.
To ensure the highest quality data, Ceres Analytical Laboratory maintains a
Quality Assurance program compliant with USEPA Good Laboratory Practice
Standards (40CFR Part 160). The Quality Assurance Program is detailed in our
Quality Assurance Manual and is available upon request.
Our mission is to develop lasting client relationships based on mutual respect
by consistently providing quality data with the shortest possible turnaround time.
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Section 2
Analytical Services
Ceres Analytical Laboratory’s focus is to provide state-of-the-art highresolution mass spectrometry services to all of our clients. Ceres Analytical
Laboratory operates with the intent of providing data of the highest quality,
responsive customer service and short turnaround times.
Ceres Analytical Laboratory represents a diverse and experienced group of
mass spectrometry specialists with over thirty-five years of combined experience.
This diversity in experience enables Ceres Analytical Laboratory to provide a
variety of expertise as well as personal service. Client inquiries and requests can be
discussed with the specialist working on the project. Ceres Analytical Laboratory
staff have participated in and had hands on experience in the development of such
methods as USEPA Methods 8290, 1613A/1613B and California Air Resources
Board (CARB) Method 428.
Ceres Analytical Laboratory provides integrity, reliability and accountability
unsurpassed in the environmental industry. Ceres Analytical Laboratory offers a
vast amount of experience and expertise in EPA Methods 8280, 8290, 1613A/1613B,
and NCASI 551.
Analytical methods and matrices are detailed in Table 2.1. Detection Limits
for specific method and matrix are listed in Table 2.2
Table 2.1
Matrix
EPA 1613
EPA 8290
EPA 8280
NCASI 551
Aqueous
Effluent
Ash
Clay
Pulp/Paper
Sediment
Soil
Tissue
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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Table 2.2
Detection Limits
Method
Cl4
Cl5-Cl7
Cl8
EPA Method
1613
w= 1.0-5.0 pg/L (ppq)
s= 0.10-0.50 pg/L(ppt)
w= 2.5-25 pg/L (ppq)
s= 0.25-2.5 pg/g (ppt)
w= 2.5-50 pg/g(ppq)
s=0.25-5.0 pg/g(ppt)
EPA Method
8290
w= 1.0-5.0 pg/L (ppq)
s= 0.10-0.50 pg/L(ppt)
w= 2.5-25 pg/L (ppq)
s= 0.25-2.5 pg/g (ppt)
w= 2.5-50 pg/g(ppq)
s=0.25-5.0 pg/g(ppt)
NCASI
Method 551
w= 1.0-5.0 pg/L
s= 0.10-0.50 pg/L
NA
NA
EPA Method
8280
Cl4-Cl5
w=10-50 pg/L (ppq)
s=1.0-5.0 pg/g (ppt)
Cl6-Cl7
w=25-125 pg/L (ppq)
s=2.5-12.5 pg/g (ppt)
Cl8
w=50-250 pg/L (ppq)
s=5.0-25 pg/g (ppt)
w= 10-50 pg/L (ppq)
NA
NA
EPA Method
613
w= Aqueous matrices (effluent, drinking water, etc.) with 1L sample size
s= Solid matrices (soil, sediment, pulp, paper, clay, etc.) with 10g sample size
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Section 3
Laboratory Facility
Ceres Analytical Laboratory, Inc.
4919 Windplay Dr. Suite 1
El Dorado Hills, CA 95762
Tel: (916)932-5011
Email: jhedin@ceres-lab.com
Ceres Analytical Laboratory is located in a 4270 square foot laboratory in El
Dorado Hills, California. The open floor plan of the laboratory enhances
communication between all facets of laboratory operations
Ceres Analytical Laboratory has a spacious sample login and storage area.
Samples are stored in freezers and refrigerators that are kept under lock and key
and are accessible only by authorized personnel. Temperatures of freezers and
refrigerators are monitored regularly to ensure proper sample storage.
The sample preparation laboratory is designed to maximize efficiency and
productivity while maintaining a safe work environment.
The instrument room accommodates two magnetic sector instruments. The
instrument room is climate controlled and designed to maintain proper instrument
operating conditions. Rotary pump emissions are evacuated from the instrument
room to maximize safety and comfort.
There is a common data review area that promotes communication between
analysts interpreting and reviewing data. This helps accommodate our multi-tiered
review process.
Ceres Analytical Laboratory has a secure data archive room designed to meet
USEPA Good Laboratory Practices guidelines regarding data security (40 CFR
sec.160). The data archive room contains raw data, manual and electronic data
used to generate final reports, archived SOPs, logbooks, and electronic backup files.
During business hours, entrances and exits to the facility remain locked
unless monitored by Ceres Analytical Laboratory personnel. Visitors are required
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to sign the Visitor Logbook and are accompanied by Ceres Analytical Laboratory
personnel. After business hours, all entrances and exits are locked and require a
key or entry code to gain access. The alarm system is monitored twenty-four hours
a day by an offsite security company.
Chemicals are stored in accordance with local fire and environmental
regulations. This includes flameproof solvent cabinets and flameproof fifty-five
gallon drum cabinets for solvent and laboratory waste. The building is equipped
with an overhead sprinkler system as well as safety eye wash and drench hose
stations. The disposal of hazardous waste is done in accordance with EPA
guidelines (40 CFR part 261). Ceres Analytical Laboratory contracts with an
authorized waste carrier to dispose of hazardous waste.
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Section 4
Equipment
Instrumentation
Ceres Analytical Laboratory is equipped with one magnetic sector
instrument. The Waters/Micromass Autospec M Series Ultima magnetic sector
mass spectrometer provide routine picogram analysis. This instrument is equipped
with OpenVMS operating systems with OPUS Quan data handling software,
HP5890 Series II gas chromatographs and CTC auto-samplers that provide twentyfour hour capabilities.
General Laboratory Equipment
Balances are checked and calibrated, if necessary, prior to use. The check
consists of three weights that encompass the range of weight to be measured. The
calibration weights used are NIST certified class S weights, which are certified
annually. Each balance is professionally serviced and calibrated annually. Each
balance has its own maintenance and calibration logbook that also contains the
acceptance criteria. In addition, each balance has its own general maintenance and
calibration SOP.
Laboratory Thermometers are checked for accuracy against NIST certified
thermometers that are calibrated professionally and recertified periodically. All
laboratory mercury or alcohol-in-glass thermometers are checked annually, and
metal thermometers are checked quarterly. Other types of thermometers (e.g.,
electronic) are calibrated on an as-used basis. In addition, sample-receiving
thermometer accuracy is routinely verified using a second source. Correction
factors are applied when necessary. Maintenance and calibration procedures are
described in the laboratory thermometer SOP.
Other equipment, such as pipets, syringes, volumetric glassware, etc. is
checked for accuracy against manufacturer’s specifications and rejected if it falls
outside of acceptable criteria.
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Section 5
Quality Assurance
Ceres Analytical Laboratory’s Quality Assurance program provides a system
of activities ensuring that quality control takes place at each step of production.
This program includes the administration, management and evaluation of all SOP
documents, internal and external facility audits, corrective action reports, quality
control procedures, statistical analysis and charting of quality indicators.
Quality Assurance:
SOPs: Ceres Analytical Laboratory provides various types of SOPs describing
procedures performed throughout the laboratory. General laboratory procedures
document procedures such as glassware cleaning, balance calibration, etc. Method
specific extraction procedures and instrumentation procedures document standard
operating procedures for the methodologies performed Ceres Analytical Laboratory.
Safety procedures document safety awareness and safety policies, safety equipment
inspection and maintenance and hazardous waste handling and disposal
procedures. The SOPs are maintained and followed by Ceres Analytical Laboratory
staff. Updates and modifications are made when necessary. This may include but
is not limited to new methodology, new instrumentation, etc. The revision number
and effective date is documented and an archive of the outdated SOP is maintained.
The SOPs are clearly written and provide adequate detail to perform the procedure.
SOPs are located in the area where the equipment and procedures are utilized. This
provides a reference for staff and ensures proper utilization.
Quality records: Ceres Analytical Laboratory maintains quality records that
verify control procedures and ensure traceability. Quality records are maintained
and archived by Ceres Analytical Laboratory. These include sample receipt records,
sample preparation records, sample and QC sample analysis data, logbooks (runlogs, temperature logs, balance calibration logs, etc.), certificates of analysis and
other records for standards, reagents, and other media, method validation records
(MDL, IPR, etc.), quality indicator data (QC charts), system audit reports, corrective
action reports, and QA reports. Logbooks are located in the area where the
equipment and procedures are utilized. This enables entries to be made at the time
of observation and ensures that logbooks are properly utilized.
Audits and inspections: System audits can be either internally or externally
initiated. The QA department performs internal audits on an annual basis. Clients
and agencies can initiate and perform external audits as per their requirements.
The purpose of these audits (either internal or external) is to verify that operations
continue to comply with the requirements of the laboratory’s quality systems and
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policies. In the event of non-compliance, the qualifying event is noted, management
is notified and corrective action is initiated, if necessary. Corrective actions should
be completed as soon as possible. All findings from QA audits are subject to
management review.
Performance audits: A Performance Evaluation (PE) Sample is analyzed and
reported by the laboratory and can be internally or externally driven. The
concentration is not known by the analyst or laboratory but is known by the PE
sample source. The purpose of performance audits is to monitor the quality of the
laboratory’s analytical activities. PE samples are used for accreditation, roundrobin studies, analyst proficiency testing, as well as evaluating laboratory system
modifications. PE sample testing is performed for each matrix and Method as
required for accreditation.
Data audits: Data audits are careful evaluations of randomly selected data
reports. The Quality Assurance Officer performs an exhaustive and thorough
review of the entire report. Both technical and clerical accuracy is verified. Data
audits are conducted to identify areas for improvement to determine if the report
satisfies the needs of the customer. Approximately ten percent of all finalized
reports undergo data audits.
Management Review: The entire Quality System, including this document
and all SOPs shall be annually reviewed by management and updated in
conjunction with the laboratory’s annual internal audit. Management review of this
document shall take into account outcomes from internal audits, assessments by
external authorities, inter-laboratory studies, performance evaluation tests, SOPs,
method manuals, laboratory polices, training records, changes in volume of or type
of work, feedback from clients and corrective actions.
Quality Control:
The analytical data produced for Ceres Analytical Laboratory clients must
meet defined quality standards. These defined quality standards include accuracy,
precision, completeness, and comparability. Numerous quality control procedures
are implemented at each stage of production throughout the laboratory. The
purpose of these procedures is to guarantee consistent and verifiable analytical
results. In the event defined quality standards are not met, corrective actions are
initiated.
Quality Control Samples and Spikes:
Cleanup Surrogate Standard (CSS): A known amount of isotopic labeled
standard that is added to every sample and is present at the same concentration in
every blank, quality control sample, and concentration calibration solution. It is
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added after extraction and prior to cleanup. The cleanup surrogate standard
recovery serves as an indicator of the performance of the cleanup procedure.
Duplicate Samples (DUP): Duplicate samples are analyzed to demonstrate
laboratory precision. Duplicate samples are two separate aliquots taken from the
same sample source. Duplicate samples are prepared and analyzed using the same
procedures as the rest of the analytical batch.
Initial Precision and Recovery (IPR): IPRs are analyzed to demonstrate
acceptable precision and recovery. A known quantity of native standard is added to
four reference matrix method blanks. The IPRs are then prepared and analyzed
following the laboratory procedure for processing samples. IPRs are performed
annually or prior to the first time a method is used and any time a method,
personnel or instrumentation is significantly modified or changed.
Internal Surrogate Standard (ISS): A known amount of isotopic labeled
standard that is added to every sample and is present at the same concentration in
every blank, quality control sample, and concentration calibration solution. It is
added prior to extraction and is used to measure the concentration of the target
analytes and the surrogate pre-sampling standard. The internal standard recovery
serves as an indicator of the overall performance of the analysis.
Matrix Spikes (MS/MSD): Duplicate matrix spike samples are analyzed to
demonstrate method precision and accuracy on a particular sample matrix. A
known quantity of native standard is added to duplicate samples. These MS/MSD
samples are then prepared and analyzed using the same procedures as the rest of
the analytical batch. MS/MSD samples are performed per client request.
Method Blanks (MB): Reference matrix method blanks are analyzed to
demonstrate freedom from laboratory contamination. The method blank is
prepared and analyzed using the same procedures as the rest of the analytical
batch. A method blank is run with each sample batch, not to exceed 20 samples
total in a given 12-hour period.
Method Detection Limits (MDL): MDLs are performed to determine the
minimum concentration of an analyte that can be measured and reported with 99%
confidence. A known quantity of native standard is added to seven reference matrix
method blanks. These spiked matrix method blanks are then prepared and
analyzed following the laboratory procedure for processing samples. MDLs are
performed annually or prior to the first time a method is used and any time a
method or instrumentation is significantly modified.
Native Standard (NS): A known amount of unlabeled standard that is added
to reference method blanks and samples in association with OPRs, LCSs, MDLs,
IPR, and MS/MSDs. It is also used in conjunction with isotopic labeled standards to
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calculate native response factors, verify the linearity and performance of the
instrumentation, and to assess the accuracy of the analytical method.
Ongoing Precision and Recovery/Laboratory Control Spikes (OPR/LCS): An
OPR/LCS is analyzed to demonstrate method precision and accuracy. A known
quantity of native standard is added to a reference matrix method blank. This
OPR/LCS is then prepared and analyzed using the same procedures as the rest of
the analytical batch. All results are reported in ng/mL of final extract. An
OPR/LCS is run with each sample batch, not to exceed 20 samples total in a given
12-hour period.
Percent Recovery: Percent recovery is the calculated recovery of any known
amount of labeled or unlabeled analyte. If known background levels exist, they
must be accounted for. Percent recovery is a quantitative measure of the accuracy
of an analytical process.
Performance Evaluation Samples (PE): PE samples are analyzed to
demonstrate laboratory accuracy. PE samples are prepared and analyzed following
the laboratory procedure for processing samples. PE samples usually contain a
known concentration of target analytes. Multiple laboratories analyze PE samples
in order to determine statistically the accuracy and precision that can be expected
when a competent analyst performs a method. Analyte concentrations are
unknown to the analyst.
Recovery Standard (RS): A known amount of isotopic labeled standard that is
added to the final extract prior to analysis. The response of the internal standards
relative to the recovery standards is used to calculate the percent recovery of the
internal standards.
Relative Percent Deviation (RPD): The relative percent difference is a
comparison of target analytes from LCS or MS/MSD pair recoveries. The RPD is
calculated as the difference in percent recoveries of the target analyte, divided by
the average percent recovery of the target analyte, times 100%.
Quality Control Acceptance Criteria: The acceptance criteria for analytical
data are method specific. Refer to each IP for the specific requirements.
Corrective Action: Corrective Action is initiated when QC limits are exceeded,
as specified in the particular method. This may include re-injection of the extract,
or re-extraction of the sample or sample set.
Corrective Action Reports (CAR): Corrective action reports are initiated
when major non-routine irregularities arise, or as a result of customer complaint.
The purpose of a CAR is to determine the cause of the problem, to monitor the
progress of any corrective action activities, and to implement measures to prevent
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the problem from re-occurring in the future. For example, if persistent method
blank contamination occurs, corrective action is implemented to determine the
source of the contamination.
Quality Assessment
Quality assessment is a means to determine whether the laboratory’s ongoing
quality systems are functioning properly. Assessments include but are not limited
to: peer reviews, system audits, performance evaluations, data quality audits,
statistical tracking of analytical quality indicators (QC charts) and subsequent
management review. The assessment procedures and their implementation are
outlined throughout the Quality Manual.
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Section 6
Project Experience
“Supercritical Fluid Extraction and Solid Phase Extraction Techniques Applied to
the Analysis of Pulp and Paper Mill Effluents for 2,3,7,8-Tetrachlorodibenzo-pdioxin and1,2,7,8/2,3,7,8-Tetrachlorodibenzofuran,” Peterson, R.G., Luksemburg,
W.J., Hedin, J.,Silverbush, B., Werst, M., Maloney, N. Presented at the Research
and Technology Transfer Conference, Toronto, Ontario (1992).
“Polychlorinated Dioxins and Dibenzofurans in Environmental Samples from
China,” Luksemburg, W., Mitzel, R., Hedin, J., Silverbush, B., Wong, A., Zhou, H.,
Dioxin ‘96, Vol.28, pp. 262-263, 1996.
“Extraction of Large Volumes of Aqueous Samples using Solid Phase Extraction
Disks” Luksemburg, W., Peterson, R., Silverbush, B., Maloney, N., Werst, M.,
Hedin, J.
“Polychlorinated Dioxins and Dibenzofurans (PCDDs/PCDFs) in Environmental and
Human Hair Samples Around a Pentachlorophenol Plant in China,” Luksemburg,
W., Mitzel, R., Hedin, J., Silverbush, B., Wong, A., Zhou, H., Dioxin ‘97, Vol. 32, p.
38, 1997.
“Polychlorinated Dibenzodioxins and Dibenzofurans (PCDD/PCDF) and
Polybrominated Diphenylether (PBDE) Levels in Environmental and Human Hair
Samples Around an Electronic Waste Processing Site in Guiyu, Guangdong
Province, China,” William J. Luksemburg, Robert S. Mitzel, Robert G. Peterson,
Martha M. Maier, Melanee Schuld, James M. Hedin, HuaiDong Zhou, Dioxin 2002
poster presentation.
“Comparison of NCASI Method 551, EPA Method 1613A and the Proposed FDA
Method for the Analysis of 2,3,7,8-TCDD and 2,3,7,8-TCDF in Food Packaging
Material,” Luksemburg, W., Peterson, R., Silverbush, B., Hedin, J., Maloney, N.,
Werst, M., 1993 TAPPI Environmental Conference.
“Polychlorinated dibenzodioxins and dibenzofurans (PCDDs/PCDFs) levels in
environmental and human hair samples around an electronic waste processing site
in Guiyu, Guangdong Province, China,” Luksemburg, W. J.; Mitzel, R. S.; Peterson,
R. G.; Maier, M. M.; Schuld, M.; Hedin, J. M.; Zhou, H. D.; Wong, A. S.
Organohalogen Compd. 2002, 55, 347-349.
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Section 7
Company Structure
Brian Schlenker
Quality Assurance Officer
Director of Technical Services
Safety Officer
Deborah Hedin
Administrator
James Hedin
Director of Operations
Director of Mass Spectrometry
Charles Schlenker
Director of Finances
Associate Scientist
Extraction Chemist
Quality Assurance Officer/ Director of Technical Services/Safety Officer
Responsibilities include technical guidance and support for routine analysis
and research and development of new methodologies. Reviews and interprets
analytical data and final reports. Responsibilities also include client management
and personnel training. As Quality Assurance Officer, he manages the QA
activities of the entire laboratory. As Safety Officer he is responsible for
monthly/annual equipment and facility inspections, ensures that employees follow
written safety procedures at all times and provides safety training on an as needed
basis.
Director of Operations/Director of Mass Spectrometry
Responsibilities include technical guidance and support for instrument
operations, routine analysis and research and development of new methodologies.
Additional responsibilities include personnel training, client and project
management, sales and marketing, reviewing and interpreting analytical data, and
preparing and reviewing final reports. He is also responsible for the daily
operations of the laboratory. Director of Mass Spectrometry responsibilities include
documenting, performing, and/or supervising all preventative and on demand
maintenance of mass spectrometers. He maintains an ample supply of mass
spectrometer consumables and spare parts for preventative and on demand
maintenance.
Director of Finances
Responsibilities include providing bookkeeping services for the laboratory.
This includes performing marketing programs, accounts payable, invoicing and
payroll.
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Administrator
Responsible for administrative support to the Directors including phone routing,
office supply inventory, final report packaging and client correspondence.
Associate Scientist/Extraction Chemist
The chemist is responsible for following all Ceres Analytical Laboratory’s
standard operating procedures used within the laboratory. The chemist will also
adhere to Ceres Analytical Laboratory’s ethics policy and safety policy at all times
while performing their duties. The chemist will coordinate their work within the
extraction lab to meet all extraction hold times and to prioritize samples based on
their project due date. The chemist will perform routine tasks such as reagent
preparation, glassware cleaning, kiln loading/unloading, inventory stocking and
waste disposal. The chemist will also perform non-routine duties such as laboratory
cleaning, laboratory equipment preventative maintenance and expired sample
disposal. The chemist will coordinate with other laboratory personnel in performing
sample control duties.
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Brian K. Schlenker
Quality Assurance Officer/ Director of Technical Services/Safety Officer
EDUCATION
B.S. Biochemistry, University of California, Davis, CA (1992)
EXPERIENCE
Present
Quality Assurance Officer, Director of Technical Services, Safety
Officer, Ceres Analytical Laboratory
Mr. Schlenker, a founder, is responsible for maintaining and operating
the sample preparation laboratory. He develops new methodologies and
is responsible for technical guidance and support for routine analysis.
He is also responsible for routine analysis, reviewing and interpreting
data, training personnel, client and project management, preparing and
reviewing final reports. As QA Officer he works with the all laboratory
personnel to ensure that the QAPP and SOP guidelines are followed. As
Safety Officer, he is he is responsible for verifying that laboratory safety
procedures are being followed by the staff at all times.
2005-2011
Instrument Operator, Alta Analytical Laboratory
Mr. Schlenker was responsible for performing routine analysis, trouble
shooting and routine maintenance, and working up analytical data in
the LCMS department. He performed all his duties under FDA and
GLP guidelines.
1998-2005
Chemist, Dey Laboratory
As chemist, Mr. Schlenker’s duties included method development,
validation, report writing, and operating HPLC and GC equipment. He
performed all his duties under FDA and GLP guidelines.
1996-1998
Chemist, Empire Foods
Mr. Schlenker performed QC testing of finished product and QA facility
inspection.
QUALIFICATIONS
Mr. Schlenker has over sixteen years of experience in production analytical laboratories.
Much of this experience has involved FDA & GLP guidelines and criteria.
PROFESSIONAL AFFILIATIONS
American Society for Mass Spectrometry
The NELAC Institute (TNI) Member
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James M. Hedin
Director of Operations/Director of Mass Spectrometry
EDUCATION
B.S. Chemistry, University of Minnesota, Duluth, MN (1986)
Minor in Mathematics
EXPERIENCE
Present
Director of Operations/Director of Mass Spectrometry, Ceres Analytical
Laboratory
Mr. Hedin, a founder, is responsible for directing and performing
routine analysis and method development work in the Mass
Spectrometry department. He is responsible for routine maintenance
and operation of the HRMS instruments, as well as the preparation,
QC, etc. of all standards. In addition Mr. Hedin is responsible for
personnel training, reviewing and interpreting data, client and project
management, sales and marketing, and preparing and reviewing final
reports.
2001-2010
Director of Mass Spectrometry, Vista Analytical Laboratory
As Director of Mass Spectrometry at Vista Analytical Laboratory was
responsible for directing and performing routine analysis and method
development work in the Mass Spectrometry department Mr. Hedin
managed and trained employees on various methodologies. He
developed, tested and implemented procedures that increased
productivity and quality. Mr. Hedin was also responsible for new
instrumentation setup, reviewing and interpreting data, client and
project management, and prepared and reviewed final reports. He
successfully met all sample hold times and client deadlines.
1990-2001
Principal Scientist, Alta Analytical Laboratory
As Principal Scientist, Mr. Hedin supervised new equipment startup,
employee training, performed routine analysis and oversaw all method
development. He also reviewed and interpreted data, client and project
management, and prepared and reviewed final reports.
1987-1990
GCMS Operator, Enseco-Cal Lab
As lead chemist, Mr. Hedin managed workloads and provided technical
assistance. He performed all EPA Methods for volatiles and semivolatiles analysis. In addition, he interpreted data and provided
troubleshooting experience.
QUALIFICATIONS
Mr. Hedin has over twenty-four years of experience in production analytical laboratories
including twenty-two years of experience in the field of environmental mass spectrometry.
Much of this experience has involved PCDD/PCDF and PCB analysis in a variety of matrices.
PROFESSIONAL AFFILIATIONS
The NELAC Institute (TNI) Member
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