| 释义 |
ninhydrin Chem.|nɪnˈhaɪdrɪn|
[prob. partially f. the chemical name, triketohydrindene, and app. first formed (as a trade name) in Ger.]
A brown crystalline compound, C9H6O4, which forms coloured products with amines and is particularly used for detecting and estimating amino-acids; triketohydrindene hydrate; 1,2,3-indantrione hydrate. Freq. attrib.
[1912Warenzeichenblatt Nov. 2500/2 Ninhydrin... Farbwerke vorm. Meister Lucius & Brüning, Aktiengesellschaft, Höchst a/M...Geschäftsbetrieb: Chemische Fabrik. Waren: Pharmazeutische und therapeutische Präparate.] 1913Chem. Abstr. VII. 3765 Ninhydrin is a valuable reagent for the detection of non-biuret dialyzable amino acids. 1915Jrnl. Biol. Chem. XX. 218 This discovery [of Ruhemann's] was confirmed and extended by Abderhalden, who applied it to the detection of pregnancy and cancer, triketohydrindene hydrate now being a commercial product under the name of ‘ninhydrin’. Ibid. XXIII. 382 Free from soluble nitrogen capable of giving the ninhydrin test for amino-acids. 1949Abraham & Heatley in H. W. Florey et al. Antibiotics I. ii. 107 The positions of the separated amino acids on the paper were made visible by the coloration they gave with ninhydrin. 1962Dardenne & Kirsten in A. Pirie Lens Metabolism Rel. Cataract 416 In these hydrolysed lens extracts we detected some 30 non-protein-bound substances which could be determined by the ninhydrin reaction. 1974W. J. Burley Death in Stanley St. x. 161 [We] decided to try a new test for latents. It's supposed to be better than the old ninhydrin test for some surfaces. |