| 单词 | ninhydrin |
| 释义 | ninhydrin[ nin-hahy-drin ] / nɪnˈhaɪ drɪn / noun Chemistry.a white or yellow, toxic, crystalline or powdery compound, C9H4O3⋅H2O, that reddens when heated above 100°C, a monohydrate, soluble in water or alcohol: used primarily as a reagent to detect the presence of various amino acids. Origin of ninhydrinFrom German, registered as a trademark for the drug in 1912 Words nearby ninhydrinNingbo, Ningsia, Ningxia, Ningxia Hui, Ningxia Hui Autonomous Region, ninhydrin, ninhydrin reaction, Ninian, Ninib, Ninigi, ninja Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for ninhydrinninhydrin / (nɪnˈhaɪdrɪn) / nouna chemical reagent used for the detection and analysis of primary amines, esp amino acids, with which it forms a derivative with an intense purple colour Word Origin for ninhydrinC20: from the chemical name triketo hydrindene Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Medical definitions for ninhydrinninhydrin [ nĭn-hī′drĭn ] n.A poisonous crystalline oxidizing agent used as an analytic reagent. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. |
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