9 Liquid and gas chromatography apparatus and equipment, namely, detectors, UV detectors, UV absorption detectors, mass spectrometers, mass selective detectors, diode array detectors, evaporative light scattering detectors, fluorescence detectors, refractive index detectors, differential refractometer, viscosimeter, polarimeter detector, electrochemical detector, conductivity detector, fraction collectors; microtiter plate readers, bar-code readers and biochip readers