reference samples in the nature of sample container filled with a preservative in the container for use in analytical chemistry, and buffers and standard solutions for use in analytical chemistry; chemical solutions in the nature of buffer and standard solutions used in analytical chemistry for use with gas or liquid chromatography for laboratory use; Chemicals and unprocessed synthetic resins for use in the purification of proteins for in vitro use, sodium dodecyl sulfate polyacrylamide gel electrophoresis for detection and analysis of DNA damage, and induction of protein expression; Proteins in raw material form for scientific and medical research | laboratory filters; syringe filters for laboratory use; Chromatography apparatus in the nature of vials for laboratory use; Chromatography columns for laboratory use; Chromatography equipment in the nature of chromatography apparatus for laboratory use; gas chromatography apparatus for laboratory use; liquid chromatography apparatus for laboratory use; multi-well plates for laboratory use; Laboratory apparatus and chromatography systems for use in protein purification; Scientific apparatus and instruments, namely, chromatography columns for use in purification in the laboratory and parts and fittings therefor; solid phase extraction equipment for laboratory use; sample storage and biobanking equipment in the nature of laboratory storage tubes for laboratory use
