Spectroscopic apparatus, namely, ultraviolet and visible absorption ("UV-VIS"), spectrophotometers, infrared spectrophotometers, emission spectroscopic apparatus, in-solid gas analyzers, inductively coupled plasma emission spectrometers, atomic absorption spectrophotometers, spectroflourometers, thin-layer chromatography ("TLC") scanners

SPECTROSCOPIC APPARATUS, NAMELY, ULTRAVIOLET AND VISIBLE ABSORPTION ("UV-VIS"), SPECTROPHOTOMETERS, INFRARED SPECTROPHOTOMETERS, EMISSION SPECTROSCOPIC APPARATUS, IN-SOLID GAS ANALYZERS, INDUCTIVELY COUPLED PLASMA EMISSION SPECTROMETERS, ATOMIC ABSORPTION SPECTROPHOTOMETERS, SPECTRAL, THIN-LAYER CHROMATOGRAPHY ("TLC") SCANNERS