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: Nitrophenylmaltodextrins are alpha-amylase substrates which allow a continuous determination with a zero order kinetics over a period of at least 10 min, without deviations from linearity. Only one auxiliary enzyme is necessary. Practicability and clinical evidence of alpha-amylase determinations by means of p-nitrophenyl-alpha-D-maltotetraoside are demonstrated. The interserial precision of 0.84% cannot conceal an only moderate correlation with previous methods. This fact, however, does not negate the advantages.

Untersuchungen zur Bestimmung der α-Amylase mit p-Nitrophenyl-α-D-maltotetraosid