SPECTROPHOTOMETRIC DETERMINATION OF MICRO-AMOUNT OF COPPER IN GRAIN WITH T (4-TMAP) P
- VernacularTitle:T(4-TMAP)P光度法测定粮食中微量铜
- Author:
Yulin HUANG
;
Yizhen ZHANG
;
Shengzhuang TANG
- Publication Type:Journal Article
- Keywords:
spectrophotometry ?,?,?,?-tetrakis-(4-trimethylammoniumphenyl)-porphine copper
- From:
Acta Nutrimenta Sinica
1956;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
T(4-TMAP) P [?,?,?,?-tetrakis-(4-trimethylammoniunphenyl)Por-phine] has been used for the colorimetric determination of copper in grain. The results of this method are in agreement with those of atomic-absorption spectrophotometry and the ordinary spectrophotometry. The method is very simple, accurate and rapid. The recovery is 94.2%-105.8% and the coefficient of variation is 1.6%-4.9%.
