REFERENCE MATERIAL CERTIFICATE
Certified Reference Material
Product Name
HJ 827-2017 Carbamate Pesticides Mixture 154 50
-1000 µg/mL in Methanol
ISO 17034
This certificate is designed in accordance with ISO 17034 and ISO Guide 31. This certified reference material (CRM) was designed, produced and verified in accordance with
ISO/IEC 17025, ISO 17034 and a registered quality management system ISO 9001.
Product Code
DRE-A50000154ME
Lot Number
2-H413734ME
CERTIFIED
Format
Multicomponent Solution
Expiry Date
16 Jun 2024
Storage Temp
≤ -10 ºC
Compound Name
Concentration
( ug/mL)
Expanded Uncertainty
U (ug/mL )
CAS
Lot Number
Purity
(%)
Amount
(mg)
RT
(min)
2,3,5-trimethacarb
196.6
10
2655-15-4
2763.3.3P
98.8
19.90
1.22
Methomyl-oxime
987.4
50
13749-94-5
4798.421.2P
98.64
100.10
3.97
Methomyl
200.8
11
16752-77-5
1852.421.2P
99.9
20.10
6.39
3-hydroxycarbofuran
199.7
10
16655-82-6
2235.3.10P
97.4
20.50
8.46
Metolcarb
99.5
5.5
1129-41-5
2125.3.2P
99.5
10.00
11.53
Isoprocarb
49.59
2.9
2631-40-5
2236.3.1P
98.2
5.05
12.87
Propoxur
198.8
10
114-26-1
2042.421.1.4P
99.9
19.90
14.23
Fenobucarb
100.4
5.5
3766-81-2
2238.3.2P
99.4
10.10
14.50
Bendiocarb
199
10
22781-23-3
1909.421.1.1P
99
20.10
15.43
Promecarb
102
5.6
2631-37-0
1851.421.1.1P
99
10.30
15.80
Carbofuran
50.16
2.8
1563-66-2
1806.421.1P
99.53
5.04
16.69
Pirimicarb
50.31
2.8
23103-98-2
1636.421.1P
99
5.08
18.24
Carbaryl
199
11
63-25-2
1653.421.1P
99.5
20.00
19.09
Methiocarb
50.35
2.9
2032-65-7
1617.286.1P
95
5.30
19.57
The producer certifies that this reference material meets the specification stated in this certificate until the expiry date, provided it
is stored unopened at the recommended temperature herein. Product warranties for this reference material are set out in the
terms and conditions of purchase.
Version 2
CERTIFIED BY
CERTIFIED ON
HuiChen Stavros, Ph.D.
18 Jun 2020
RM
Release
Page 1 of 2
REFERENCE MATERIAL CERTIFICATE
Instrument
LC/HRMS - Positive Mode
CHRO MATO GRAM
Column/Flow
Vanquish C18+ 100mm x 2.1mm
ID 1.5um Particle / 0.2 mL/min
Intended Use
This CRM is intended for use in a laboratory as a calibration and
quality control standard or in method development for analytical
techniques.
Safety
Proper precautions should be observed while handling. See Safety
Data Sheet.
Uncertainty
The certified value(s) and uncertainty(ies) are determined in
accordance with ISO 17034 with an 95% confidence level (k=2).
Uncertainty is based on the Total Combined Uncertainty,
including uncertainties of preparation, purity of neat materials,
homogeneity, long-term stability testing, and transportation
stability.
LGC Group
7290-B Investment Drive
North Charleston, SC 29418
United States
T | +1 843 763 4884
F | +1 866 509 5146
E | dr.ehrenstorfer@lgcgroup.com
Version 2
Method Details
Mobile Phase A: Water w/0.1%
Formic Acid
Mobile Phase B: Acetonitrile w/
0.1% Formic Acid
Time
0.0
1.0
22
22.25
28.5
%A
95
95
5
5
95
Method of Preparation
The certified value is based on gravimetric and volumetric
preparation of this CRM. This CRM has been confirmed by the
appropriate analytical techniques.
Batch Information
Solvent: Methanol w/ 0.1% Formic Acid, Lot no. 197713, 100 mL
%B
5
5
95
95
5
Traceability
The balances used for gravimetric measurements are calibrated
with weights traceable to the national standards (NIST). The
calibration of the balances is verified daily internally and annually
by an external accredited calibration service. Only Class A
glassware is used for volumetric measurements.
Homogeneity
Random replicate samples of the final packaged CRM have been
analysed to prove homogeneity consistent with ISO 17034.
Storage
The CRM should be stored in the original sealed bottle at the
indicated temperature.
The producer of this reference
material is registered to ISO 9001:2015
under 56 100 19560019 by TUV USA and
accredited to ISO 17025:2017 and ISO
17034:2016 by A2LA with the accreditation
numbers 3031.01 and 3031.02.
ISO 17034
Instructions for Use
The CRM should be used shortly after opening to avoid
concentration changes due to evaporation. It is recommended
to use 1 µL as the minimum sample size. If storage after opening
is necessary, it should be transferred to an amber vial with
minimum head space and a Teflon lined silicon septum. If
handled as recommended, use period after opening is a
maximum of 305
days for an estimated 5% drift in
concentration as a result of analyte and/or solvent transpiration.
Visit the support section of our website lgcstandards.com for a
series of Dr. Ehrenstorfer Tech Tip videos and frequently asked
questions.
ISO 17034 Accredited
Reference Material Producer
Cert. No. 3031.02
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