| 单词 | marquis' test |
| 释义 | > as lemmasMarquis' test attributive. Designating or associated with a method of detecting opium alkaloids from the formation of a purple colour on the addition of sulphuric acid and formalin. Esp. in Marquis' test. ΚΠ 1946 Sun (Baltimore) 20 Dec. 9/5 [He] did have a positive Marquis test. He followed exactly the method used by Dr. Munch, and came to the conclusion that the alleged ‘morphine’ found by Dr. Munch was probably the chemical DOTG from the red rubber washer around the neck of the jar containing the sample. 1983 Listener 28 July 3/3 A filing-cabinet in the customs office contains phials of sulphuric acid known as ‘marquis ampoules’. If dust in a suitcase contains just the tiniest traces of heroin, it can be discovered by dropping it in the acid. 1992 Pharmazie 47 347/1 The colour reaction chosen..is a modified combined Marquis/Mandelin reaction. < as lemmas |
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