Tridet detector

Chromatograms Demonstrating the Different Functional Response of the TriDet Detector... 

An example of the use of a simple fluorescence detector is afforded by the separation of the mixture of priority pollutants shown in figure 2. The separation was actually monitored by the fluorescence sensor of the TriDet detector the design of which will be discussed later. The excitation light was approximately monochromatic at 254 nm and all the fluorescent light was focused on the photo cell. It is seen that an excellent sensitivity is obtained. 

Trifunctional detectors are the natural extension of the multifunctional concept but, to date, there appears to be only one trifunctional detecting system that has been fully developed and become commercially successful. In fact, there is no reason why four, five or even more sensing devices could not be incorporated together in an effective multifunctional detector. However, it appears that, so far, the TriDet, a trifunctional detector has the maximum number of different sensors of any commercially available detector. 

However, it is not only the simultaneous use of all detector functions that makes this detector so useful. An equally important advantage of the trifunctional detector is that it allows the analyst a choice of the three most useful detector functions in one detecting system. Furthermore, any or all of the three functions can be chosen at the touch of a switch and without any changes in hardware. Examples of the use of the three individual detector functions in the analyses of three quite different types of sample are shown in figure 7. The separations clearly demonstrate the flexibility of the TriDet and its value for use in widely diverse analyses. 

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