UV LIGHT EMITTING DIODE AS LIGHT SOURCE IN GAS CHROMATOGRAPHY-UV ABSORPTION SPECTROPHOTOMETRY.

摘要

An apparatus for analyzing a sample, comprising a sample receiving device (14), a gas chromatograph (13) and a spectrophotometer (1), said spectrophotometer (1) comprising a UV Light Emitting Diode as the light source (6), an elongated chamber (3) and a detector (15), wherein the UV light source (6) is arranged to illuminate sample substances conducted through the chamber (3), and wherein the detector (15) is arranged to identify sample substances by UV absorption spectroscopy.