| 释义 |
tetrazolium Chem.|tɛtrəˈzəʊlɪəm|
[f. tetrazole + -ium b.]
a. The ion or radical N4CH3(+) derived from tetrazole.
b. Any of various derivatives of this, esp. triphenyl tetrazolium chloride, a reagent used as a test for viability in biological material. Usu. attrib.
1895Jrnl. Chem. Soc. LXVIII. i. 574 (heading) Constitution of tetrazolium bases. Ibid., When tetrazolium derivatives are oxidised, the phenyl radicle is not eliminated. 1947Nature 31 May 748/1 (heading) Tetrazolium salt as a seed germination indicator. 1969J. Levitt Introd. Plant Physiol. ii. 13/1 Tetrazolium dyes..are converted from the colorless to the colored (e.g., red) form by freshly cut surfaces of living cells. 1980Nature 8 May 80/1 The resulting recombinants are Mal- when scored on maltose tetrazolium agar. |