LAB EQUIPMENT, NAMELY, SPECTROSCOPES, INFRARED SPECTROPHOTOMETERS, ULTRAVIOLET AND VISIBLE ABSORPTION SPECTROPHOTOMETERS, EMISSION SPECTROSCOPES, IN-SOLID GAS ANALYZERS, INDUCTIVELY COUPLED PLASMA EMISSION SPECTROMETERS, ATOMIC ABSORPTION SPECTROPHOTOMETERS, SPECTROFLUOROPHOTOMETERS, THIN-LAYER GAS CHROMATOGRAPHY SCANNERS, AND COMPUTER SOFTWARE FOR USE IN SPECTROSCOPIC ANALYSIS