DETERMINATION OF SUB-MICROGRAM AMOUNTS OF VANADIUM IN BIOLOGICAL-MATERIALS BY EXTRACTION WITH N-CINNAMOYL-N-2,3-XYLYLHYDROXYLAMINE AND FLAMELESS ATOMIC-ABSORPTION SPECTROMETRY WITH AN ATOMIZER COATED WITH PYROLYTIC-GRAPHITE

被引：37

作者：

ISHIZAKI, M

UENO, S

机构：

[1] Ibaraki Hygienic Laboratory, Mito-shi, Ibaraki, 310, 4-1, Atago-cho

来源：

TALANTA | 1979年 / 26卷 / 07期

关键词：

D O I：

10.1016/0039-9140(79)80083-1

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A highly sensitive and simple method for determination of vanadium in plants and biological samples by solvent extraction and flameless atomic-absorption spectrometry with a carbon tube coated with pyrolytic graphite is described. After digestion of the sample, vanadium is separated by extraction of its N-cinnamoyl-N-2,3-xylylhydroxylamine complex into carbon tetrachloride from 6M hydrochloric acid medium. The method can be used to determine vanadium in plants and biological samples with average recovery of 94% and coefficient of variation of 14%. The sensitivity (1% absorption) is estimated to be 4 × 10-11 g. © 1979.

引用

页码：523 / 526

页数：4

共 12 条

[1] DETERMINATION OF VANADIUM IN BIOLOGICAL-MATERIALS BY RADIOCHEMICAL NEUTRON-ACTIVATION ANALYSIS [J].