A new sensitive colorimetric assay for peroxidase using 3,3'-diaminobenzidine as hydrogen donor.
摘要：
A new simple colorimetric assay for measurement of peroxidase activity using 3,3′-diaminobenzidine tetrahydrochloride as hydrogen donor is described. The DAB is stable under the usual assay conditions, and its rate of auto-oxidation is negligible. Under optimal conditions, a linear relationship is found between peroxidase concentration and the rate of oxidation of 3,3′-diaminobenzidine tetrahydrochloride (ΔA 405nm/min). Using horseradish peroxidase, the DAB method appears more sensitive than the o-dianisidine and the guaiacol assays for peroxidase. This method can also be used for measurement of peroxidase activity in tissue fractions.
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DOI：
10.1016/0003-2697(73)90144-9
被引量：
年份：
1973
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