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Sorbent Technologies Inc Cellulose 300 PEI TLC Plates, polyester backed, 100um, 20x20cm, 25/pk
Supplier: Sorbent Technologies Inc 1122026
Cellulose 300 PEI, polyester backed TLC plates contain fibrous cellulose impregnated with polyethyleneimine. The coating thickness is 100um and dimensions are 20x20cm. There are 25 plates per pack. Applications include: analysis of nucleic acids, and of mutagenic substances with the 32P post-labelling procedure (see Sorbtech Application No. 402260.) Cellulose ion exchange layers are suited for the separation of substances with exchange-active groups. Consequently they are used for the separation of amino acids, peptides, enzymes, nucleic acid constituents (nucleotides, nucleosides) etc. PEI is not a chemically modified cellulose, but a complex of cellulose and poly- ethyleneimine. PEI cellulose is a relatively strong anion exchanger. PEI layers should be stored in a refrigerator at 4C. An important application of CEL 300 PEI is the analysis of mutagenic substances with a 32P postlabelling procedure.
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