| http://www.w3.org/ns/prov#value | - Other optional components in the detergent composition include chelating agents e.g. EDTA, EGTA and other polyamino carboxylic acids conveniently at concentrations of 1 to 50 mM etc., reducing agents such as dithiotreitol (DTT) or ??-mercaptoethanol, at concentrations of for example 1 to 10 mM. Preferred detergent compositions may for example comprise: 100 mM Tris-HCl pH 7.5 10 mM EDTA 2% SDS or:
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