Viscotek UV Detector
Concentration detector, perfect for GPC/SEC, molecular weight determination and compositional analysis.
Accurate measurement of the polymer or protein concentration profile is essential to good molecular weight or structure data. The high-stability Viscotek UV detector is ideally suited for multi-detection GPC/SEC.
The Viscotek UV detector is sold as an addition to the Viscotek TDAmax to complete a Tetra Detector format, or as a stand-alone module for connection to other chromatography components such as the 270max or the SEC-MALS 20.
- Excellent tool for the compositional analysis of co-polymers or protein conjugates.
- Precise and accurate temperature control as the detector cell is housed in the same thermal chamber as the rest of the system.
- Choose the most appropriate wavelength for your sample.
- Unmatched baseline stability and data reproducibility.
A pump, such as the GPCmax, and some form of injection device, such as a manually actuated valve or autosampler, creates a flow of mobile phase through a UV detector flow cell.
With the TDAmax system, this flow cell is situated within the detector array housing itself.
Light from the UV detector is passed through the flow cell via fiber-optic cables. Compounds with a UV chromophore give a response on the detector, which is directly proportional to the concentration. The UV detector measures absorbance at the user-specified wavelength.
The OmniSEC software records the absorbance data as a chromatogram along with all the other data channels. This is then used to calculate concentration or conjugate data depending on the analysis settings in the software.
Single wavelength UV-detector & flow cell for connection to a modular GPC/SEC system
Single wavelength UV-detector with fiber-optic connections for a TDA or HT-GPC
- Detector type:
Small variable single wavelength UV detector
- Detection channels:
- Light source:
Deuterium (D2) lamp with integrated GLP chip
- Wavelength range:
190 - 500 nm
- Spectral bandwidth:
13 nm at Hα line (FWHM)
- Wavelength accuracy:
± 3 nm
- Wavelength precision:
0.7 nm (ASTM E275-93)
± 2.0 x 10-5 AU at 254 nm (ASTM E1657-98)
3.0 x 10-4 AU/h at 254 nm (ASTM E1657-98)
> 2.0 AU at 270 nm (ASTM E1657-98)
- Time constants:
0.00 / 0.02 / 0.05 / 0.1 / 0.2 / 0.5 / 1.0 / 2.0 s
- Flow cell:
Included with standalone unit (GPC5025).
Not included in fiber optic version (GPC2550).
To add fiber optic version to an existing TDA (with no flow cell) use GPC5250.
- Integration time:
- Analog outputs:
1 x ± 2.5 V scalable, 20 bit
- Ambient conditions:
Temperature range: 4 - 40 °C, 39.2 - 104 °F
Humidity: below 90 % noncondensing
- Power Supply:
External: input 100 - 240 V, output 24 V DC, 60 W
121 x 129 x 187 mm (W x H x D)
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When you purchase a Malvern Panalytical product we understand that this is just the first stage of a working relationship that will last for the lifetime of the instrument. Depending on your needs, Malvern Panalytical will provide the support for your business.
- Telephone and email support.
- Operators who take responsibility for your call and ensure your query is answered.
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For laboratories looking to optimize instrument performance, regular preventative maintenance is essential.
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