tender for scientific lab items - sem-edx high performance liquid chromatography (hplc) gas chromatograph-mass spectrometer with auto sampler bal scan comparison microscope gas chromatograph- head space (gc-hs) computer controlled velocity measurement system spectral comparators/high resolution spectral comparators digital image processing comparison microscope xrf (x-ray, fluorescence) fourier transform infrared spectrometer (ftir) stereo zoom microscope with projection facilities tool for examination of indented writings ion chromatograph mobile firing rest computerized stereo microscope with accessories milipour water purification system for hplc specialized equipment for decipheringsequence of strokes