9 apparatus used to house multi-well plates that can be used in chemical or biological analysis for scientific, laboratory or medical research use and to feed such plates into biological, biochemical and chemical electrochemiluminescence-based analyzers for performing assays, selection, screening, testing, imaging and diagnostics of biological, biochemical, environmental and chemical samples; all of the forgoing excluding mass spectrometers, mass selective detectors, detectors for use with chromatographs, and goods or services for use with mass spectrometers, mass selective detectors and detectors for use with chromatographs; biological, biochemical and chemical electrochemiluminescence-based analyzers for performing assays, selection, screening, testing, imaging and diagnostics of biological, biochemical, environmental and chemical samples; all of the forgoing excluding mass spectrometers, mass selective detectors, detectors for use with chromatographs, and goods or services for use with mass spectrometers, mass selective detectors and detectors for use with chromatographs