Making Spectroscopy Brighter
CUVETTE HOLDERS
COLLIMATING LENS
FILTER HOLDERS
OPTICAL FILTERS
FLOW CELLS
REFLECTANCE STANDARDS
SAMPLING ACCESSORIES
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ACCESSORIES
Cuvette Holder - CH
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Built for 10 mm pathlength cuvettes
Suitable for Absorbance and Fluorescence
6 mm collimating lens with adjustable SMA connector
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Cover included for photosensitive samples
Rack for four cuvettes and optional direct attach
Small, flexible and affordable
Sarspec’s Cuvette Holder - CH is a flexible accessory that can be used to
perform Absorbance/Transmittance and Fluorescence measurements. Each
configuration is easily interchangeable for both types of measurement and
can optionally be performed simultaneously. The combination of Sarspec´s
spectrometers and light sources with Cuvette Holder allow users to select the
application just by moving the SMA connector into a different position.
Absorbance configuration
Sarspec’s Cuvette Holder includes a rack specially built for productivity
improvement – with the CH-RACK the common spilling of a sample is less
probable. This special rack holds four 10 mm pathlength cuvettes. Cover to
reduce stray light and avoid the degradation of photosensitive samples is also
included.
Fluorescence configuration
The cuvette holder can be ordered with a direct attach option that increase
significantly the sensitivity in Fluorescence measurements. This option
connects the cuvette holder directly to the light source maximizing the light
intensity on the sample.
Parameter
Value
Applications
Absorbance/Transmittance, Fluorescence or both
Wavelength range
180–2000+ nm
Z Dimension
15 mm
Fiber connection
SMA 905 (adjustable position)
Pathlength
10 mm
Collimating lenses
6 mm UV Fused Silica f=10 mm
Number of ports
3 (0º, 90º, 180º)
Dimensions
85 (L) x 80 (D) x 45 (H) mm
Dimensions with rack attachment
85 (L) x 100 (D) x 45 (H) mm
Ordering Information
Cuvette Holder
CH
Direct Attach for CH
CH-DA
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ACCESSORIES
Multipurpose Cuvette Holder - CH-MP
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Built for 10 mm pathlength cuvettes
Absorbance, Fluorescence and Raman measurements
12.7 mm collimating lens with adjustable SMA connector
Flexibility – 4 entry/exit ports
Optional signal enhancing mirrors
Optional direct attach
SARSPEC CH-MP is a flexible cuvette holder as it’s small, portable and a
complete solution for Absorbance, Transmittance, Fluorescence and Raman
measurements. The 12.7 mm collimating lenses with adjustable SMA connector
allow the illumination of larger sample area and collection of more light,
making it the best solution for low light measurements.
This cuvette holder is very flexible since it has four ports with M18 threads
allowing the user to choose where to connect the collimating lens and optional
signal enhancing mirrors. On every port there are slots for slide filters that
can be easily coupled for light rejection. The filters, large diameter lens and
optional signal enhancing mirrors (CH-MP-EM) combined make this product a
great solution for the best results in Fluorescence and Raman measurements.
The Cuvette Holder can be ordered with a direct attach option to increase
significantly the sensitivity in Fluorescence and Raman measurements. This
option connects the cuvette holder directly to the light source maximizing
light intensity on the sample.
Parameter
Value
Applications
Absorbance, Transmittance, Fluorescence, Raman
Wavelength range
180-2000+ nm
Fiber connection
SMA 905 (adjustable position)
Pathlength / Z Dimension
10 mm / 15 mm
Collimating lenses
12.7 UV Fused Silica f = 25 mm
Number of ports
4 (0º, 90º, 180º, 270º)
Filter Slot
4 (max. filter size Ø 12.7 x 3 mm)
Dimensions
100 (L) x 100 (D) x 62 (H) mm (with cover)
Ordering Information
Cuvette Holder Multipurpose
CH-MP
Direct Attach for CH-MP
CH-MP-DA
Signal enhancing mirrors (set of 2)
CH-MP-EM
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ACCESSORIES
Peltier Cuvette Holder - CH-QPOD® 2e (Quantum Northwest, Inc.)
• Magnetic stirring and dry gas purge
• Several Packages available: Absorbance, Fluorescence
• Peltier temperature control
• Temperature range from -30 to +110 ºC
• USB or wireless Bluetooth control
or Multipurpose
The qpod 2e is a complete sample compartment for fiber optic
spectroscopy, including a Peltier-controlled cuvette holder with
magnetic stirring, and fused silica lens systems with SMA fiber optic
connectors. The qpod 2e housing contains a PID temperature controller
that is operated via Bluetooth wireless or USB using the computer
program Q-Blue. The qpod 2e is available in three different packages.
The CUV-qpod 2e-ABSKIT provides collimating optics to pass
light straight through for absorbance, transmittance or turbidity
measurements. The CUV-qpod 2e-FLKIT provides imaging lens systems
for excitation and detection of fluorescence emission at right angles. The CUV-qpod 2e-MPKIT is a multipurpose kit with a
combination of optics that may be used for either absorbance or fluorescence measurements.
The qpod 2e is constructed of a single molded housing. The cuvette holder in the center provides temperature control and
variable speed magnetic stirring, and holds optical slits to limit light into the samples. A dry gas purge may be used to avoid
condensation when working at low temperatures. SMA fiber optic connections and high quality fused silica optics may be
inserted in different combinations into optical ports located in the walls surrounding the cuvette holder. Accessories such as
polarizers and filter holders may be inserted in the light paths. Spherical mirrors may be used to enhance excitation or emission
signals. All optics provide focusing and position adjustments for maximizing signal throughput.
Parameter
Value
Temperature Range
-30º C to +110º C
Temperature Precision
±0.01º C
Temperature Accuracy
±0.15º C
Probes accepted
Standard 400 and 500 series thermistor
Standard cuvette size
12.5 mm x 12.5 mm O.D.
Cuvette Z height
8.5 mm
Ordering Information
QPOD 2e cuvette holder base unit
CH-QPOD2e
QPOD 2e absorbance/transmission measurements
CH-QPOD2e-ABSKIT
QPOD 2e for fluorescence measurements
CH-QPOD2e-FLKIT
QPOD 2e for either absorbance or fluorescence
CH-QPOD2e-MPKIT
AR-coated fused-silica collimating lens
CH-QCL-UV
AR-coated fused-silica imaging lens doublet
CH-QIL-UV
Spherical mirror plug with steering plate
CH-QMP
Filter holder for 12.5 mm diameter filter
CH-QFH
Polarizer for mounting on the QIL-UV lens system
CH-QPOL-47-215
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ACCESSORIES
Collimating Lens
• Used to focus or collimate a light beam
• Two options: 6 mm and 12.7 mm diameters
• Standard UNS 1/4’’-36 for SMA connection
• Adjustable SMA connector
The main characteristic is the ability to create a well-directed beam with a welldefined diameter, allowing therefore a uniform illumination of the sample in
study by converting a divergent beam into a parallel beam. For this to occur,
the light emitting element must be placed at the focus of the lens. On the other
side, if the incident light is already collimated the lens will work like a focusing
lens.
All of our collimators covers the UV-VIS-NIR range and have a two-part housing
of aluminium, a screw to adjust the position of the SMA connector, allowing
users to adjust the focus.
Parameter
Standard CL
Large diameter CL
Lens diameter
6 mm
12.7 mm
Lens confocal length
10 mm
25 mm
Lens material
Threads
UV Fused Silica
UNF 3/8’’-24 and UNS 1/4’’-36 for SMA
Wavelength Range
M18 and UNS 1/4’’-36 for SMA
180-2000+ nm (UV/Vis/NIR)
Ordering Information
CL1
CL2
In-line Filter Holder
• Connect two optical fibers via SMA 905
• Use up to three 3 mm thick filters
• Set for 12.5 mm / 1/2” diameter filters
• Includes two CL1 collimating lenses
Sarspec’s In-Line Filter Holder (ILFH) can be used with up to 3 filters with 3 mm
thick x 12.5 mm / 1/2” diameter and includes 2 collimating lenses CL1 and 2
spacers.
With the filters available from Sarspec it is possible to choose the right
illumination or specific wavelengths to irradiate or collect light. The two SMA
905 connectors allows the coupling with two optical fibers.
The filters are easily replaceable by unscrewing the two-part housing.
Please check our filter section for the available filters for this accessory
Parameter
Value
Lens diameter
6 mm
Filters diameter
12.5 mm / 1/2” (max. 3 with 3 mm thick)
Lens material
UV Fused Silica
Connectors
SMA 905
Wavelength Range
180 - 2000+ nm (UV/Vis/NIR)
Ordering Information
ILFH
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ACCESSORIES
Optical filters
• Large number of options available
• Round unmounted filters for In-line Filter Holder
• Slide mounted filters to use with Sarspec’s accessories
• 12.5 mm x 3 mm round filters as standard
The optical filters available can be purchased as round unmounted filters or as
slide filters for an easy coupling.
Slide Filters are filters mounted in aluminium bars used to insert the slots
available in Sarspec’s Light Sources and Cuvette holders. This makes it very
easy to change between filters without disassembling the light sources.
Sarspec has available a large number of optical filters including :
Longpass Filters – Have low transmission in the shortwave region (blocking
band) and high transmission in the longwave region (pass band). The range
between 225 nm and 1000 nm has very steep transmission edges.
Shortpass Filters – The pass band of shortpass filters is at lower wavelengths than the blocking band. Basically they block
longer wavelengths.
Bandpass Filters – Have a transmission band or bands surrounded by blocking bands allowing only a portion of the spectrum
to pass. They are useful for high transmission in their designed spectrum while blocking other wavelengths.
Neutral Density Filters - Reduce the intensity almost equally in a specific wavelength range.
Parameter
Value
Material
SCHOTT® filter glass
Diameter
12.5 mm (25 mm for LS-Xe300)
Thickness
3 mm (variable in Neutral Density Filters)
Available filters
LongPass Filters (λ @ T=50%)
280 / 305 / 395 / 435 / 495 / 550 / 590 / 645 / 695 / 780 / 850 nm
ShortPass Filters (Type)
BG3 / BG38 / BG39 / KG1 / KG3 / KG5
BandPass Filters (Type)
BG7 / BG18 / UG1 / UG5 / UG11
Neutral Density Filters - Absorptive (T% Vis)
50% / 25% / 5% / 0.5% / 0.1%
Ordering Information
Unmounted
Slide
LongPass Filters
LPF-XXXX
SLPF-XXXX-YYY
ShortPass Filters
SPF-XXXX
SSPF-XXXX-YYY
BandPass Filters
BPF-XXXX
SBPF-XXXX-YYY
Neutral Density Filters
NDF-ZZZ
SNDF-ZZZ-YYY
XXXX: Wavelength (nm) or Type
ZZZ: % Transmission (50; 25; 5; 0.5; or 0.1)
YYY: CHM for CH-MP / LSX for LS-Xe300 / LSW for LS-W / LSP for LS-DWHP / LSM for LS-MIR
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ACCESSORIES
Flow cells
• Available for Absorbance or Fluorescence in stainless • Sapphire windows for wide spectrum transmission
steel or PTFE
• Easy coupling with SMA905 connectors
• Compatible with standard HPLC fittings
• Standard pathlength of 10 mm
SARSPEC Flow Cells are the ideal choice for the analysis in a continuous flow system.
Fluorescence
They are available in stainless steel or PTFE according the applications, with 10 mm
pathlength and sealed sapphire windows in each of the fiber optic connectors. Our
flows cells allow two types of measurement techniques: Absorbance and Fluorescence.
For Absorbance, cells are designed in Z shape with 10 mm pathlength and for
Fluorescence the cells are designed with a 90º configuration between excitation and
emission. Both configurations are designed to provide optimum flow, maximum light
intensity and minimum bubble entrapment.
Absorbance
The robustness of this system is also granted by the use of Sapphire windows for wide
wavelength range transmission (180-5000 nm) and great resistance to mechanical
ware and harsh chemicals.
Each flow cell is delivered with the required sapphire windows, SMA connectors,
chemically resistant seals, 1/16’’ (Absorbance) or 1/8’’ (Fluorescence) O.D. tube fittings
and 10 cm tubing.
Parameter
Value
Applications
Absorbance, Fluorescence
Cell Material
Stainless steel, PTFE
Window material
Sapphire
Wavelength range
180-5000 nm
Internal volume (optical path)
7.85 µl for Absorbance, 31.4 µl for Fluorescence
Tubing diameter I.D. - O.D. (Absorbance / Fluorescence)
0.04” [1. 02] - 1/16’’ [1.59] / 0.08” [2.03] - 1/8’’ [3.18]
Tube fittings
Nuts and Ferrules for 1/16’’ or 1/8” O.D. tubing
Optical connectors
Standard SMA 905
Ordering Information
Flow Cell, 10 mm pathlength, Absorbance, Stainless Steel
FCASS
Flow Cell, 10 mm pathlength, Fluorescence, Stainless Steel
FCFSS
Flow Cell, 10 mm pathlength for Absorbance, PTFE
FCAPE
Flow Cell, 10 mm pathlength for Fluorescence, PTFE
FCFPE
Sapphire window, 5 mm for flow cell
SW5
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ACCESSORIES
Reflectance Standards
• For diffuse and specular reflectance
• Wavelength range from 250 to 2500 nm
• 50 mm diameter
• Anodized aluminium housing
Sarspec has available two types of reflectance standards, for diffuse and specular reflectance.
The specular reflectance type consists of a 50 mm mirror with fused
silica substrate coated with Al-MgF2 for high specular reflectivity in
a wavelength range from 250 to 2500 nm.
For diffuse reflectance all Sarspec’s standards use optical PTFE
which consists of a pure polytetrafluorethylene (PTFE) disc with
50 mm diameter. As a result of its incomparable whiteness and
purity, optical PTFE achieves virtually ideal Lambertian reflectance
properties with a reflectivity coefficient of up to 98% in a broad
wavelength range from 250 to 2500 nm.
Additional advantages when using optical PTFE is its high UV
stability, universal chemical resistance and being easily cleaned.
Sarspec offers one specular standard and three diffuse standards corresponding to reflectivities of 98%, 50% and 10%. There’s
also the possibility for customization for different sizes or reflectivities.
Parameter
Diffuse Reflectance
Specular Reflectance
Material
Optical PTFE
Fused silica / Al-MgF2
Diameter
50 mm
50 mm
Thickness
10 mm
12 mm
Wavelength Range
250-2500 nm
Max. Temperature
260º C
Housing
80º C
Black anodized aluminium
Ordering Information
Diffuse Reflectance Standard, PTFE, 98% Reflectance
DRSTD98
Diffuse Reflectance Standard, PTFE, 50% Reflectance
DRSTD50
Diffuse Reflectance Standard, PTFE, 10% Reflectance
DRSTD10
Specular Reflectance Standard
SRSTD
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SARSPEC, LDA
RUA 28 DE JANEIRO 350 B2
4400-335 VILA NOVA DE GAIA
TEL. +351 223 709 107
INFO@SARSPEC.COM
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