The V-660 is a double-beam spectrophotometer utilizing a double monochromator and a photomultiplier tube detector. The use of a double monochromator provides high resolution with extremely low ...

SOME time ago, K. A. Fischer and G. Brandes1 demonstrated that it is possible to obtain useful emission spectroscopic data with an infra-red double-beam spectrophotometer, if the sample placed in ...

The V-650 is a double-beam spectrophotometer with a photomultiplier tube (PMT) detector. The high sensitivity of the PMT enables accurate measurements of low (and high) concentration samples.