Simplification of a Commercially Available Serum
Angiotensin-Converting Enzyme Determination
The spectrophotometric method for the determination of angiotensin-converting enzyme in serum usin p-hydroxyhippuryl-L-histidyl-L-leucine as substrate is commercially available as a test kit. It shows excellent linearity over the whole range of catalytic concentration found in serum. We describe several modificatios of this method so simplify and economize the precedure.
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