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Instrument Database:
GAT - Gamma Analysen- Technik GmbH - DDW-1O Dual Wavelength Detector
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| Year of introduction |
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| Status |
available |
| Company |
GAT - Gamma Analysen- Technik GmbH
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| Categories |
Chromatography: LC-Detector: UV/Vis
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At half the price of competitive dual wavelength HPLC UV-Vis detectors, the DDW-10 is a common sense approach to dual wavelength monitoring. The benefit to the user is dual wavelength detection at a single wavelength price.
The DDW-10 is ideal for applications such as protein, peptides, and amino acid analysis including Ninhydrin amino acid derivatives. Most analyses of proteins and peptides are carried out at two wavelengths: 214 and 280nm respectively. Many investigators, however, will purchase a premium priced dual wavelength detector which offers many times the capabilities they will ever need for the analyses they require.
GAT D-Star developed the DDW-10 after listening to these same scientists and now offers a viable, economical alternative at half the price of a full spectrum, scanning, and dual wavelength detector. To be fair, many of these higher priced dual wavelength detectors, including some diode array detectors purchased for the dual wavelength applications, contain sophisticated software designed to provide various mathematical manipulations including absorbance ratios and differentials. Most of these sophisticated features are readily available as part of the many excellent chromatography software packages currently being sold. We chose not "to reinvent the wheel."
The DDW-10 combines a Deuterium and/or a Tungsten light source with specific interference filters selected by the user. Two separate information channels are used to display and output the absorbance at the two wavelengths selected. This means both absorbencies are simultaneously available without loss of chromatographic information, as is the case with dual wavelength systems, which scan between both wavelengths. The price of the instrument includes the prep flowcell (other flowcells are available).
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