9 Scientific apparatus and instruments for measuring relative DNA, RNA and protein and parts and fittings therefor; Scientific apparatus, namely, spectrophotometer for measuring relative DNA, RNA and protein; Scientific apparatus, namely, cellular mixed ester membranes for use in the science and research industry; Flow cytometers and flow-based analyzers providing cell and particle analysis, detection, or counting for scientific, laboratory, and general research uses; Laboratory chemical reactors; Scientific instruments, namely, electronic analyzers for testing and analyzing chemical and biological substances for the presence, absence, or quantity of target chemicals, biologics, and contaminants; Portable detection and identification instruments using light sources and light detectors for detecting and identifying chemical and biological substances not for medical purposes; Laboratory apparatus and chromatography systems for use in protein purification; Laboratory apparatus and computer systems for use in protein purification; Laboratory apparatus and instruments for extracting protein, not for medical purposes; Laboratory apparatus and instruments for extracting DNA, not for medical purposes; Solid phase extraction cartridges for laboratory use; Chromatography apparatus for laboratory use