the chem 2000 UV-vis spectrophotometer Systems utilize the optical bench of Ocean Optic's second-generation miniature fiber optic spectrometer, the S2000, by mounting it onto an A/D converter and turning the system into a PC plug -in spectrometer. the CHEM2000 UV-vis consists of four basic elements; the PC200 Uv-vis PC Plug-in Fiber Optic spectrometer , a miniature deuterium tungsten light source with integrated cuvette holder, a 300 solarization resistant optical fiber, and OOICHEM poerating software.