| 摘要 |
A method for checking for sensitivity of acetylcholine esterase in insects using a single insect, which comprises the steps, in any order, of homogenizing a single insect in aqueous neutral to acid pH phosphate buffer, producing a solution of acetylcholine iodide in neutral to acid pH phosphate buffered water-miscible organic solvent, producing a solution of 5,5-dithio-bis-(2-nitrobenzoic acid) in the buffer, and producing a solution of propoxur in the buffer, dropping the insect homogenisate into the wells of an assay plate, dropping the acetylcholine iodide and 5,5-dithio-bis-(2-nitrobenzoic acid) solutions into some of the wells and 5,5-dithio-bis-(2-nitrobenzoic acid) propoxur solutions into the other wells and checking for a difference in the yellow coloration between the samples in the two sets of cells. The invention also provides a test kit for determining susceptibility of acetylcholine esterase in insects using a single insect comprising a container containing separate containers of: I. a neutral to acid pH phosphate buffer II. acetylcholine iodide III. 5,5-dithio-bis-(2-nitrobenzoic acid) IV. propoxur and V. a water-miscible organic solvent.
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