Determination of copper in Chinese herbs by derivative flame atomic absorption spectrometry combined with atom trapping technique

被引：0

作者：

Yang, LL ^{[1
]}

Zhang, YX ^{[1
]}

Gao, Y ^{[1
]}

Yuan, CG ^{[1
]}

Zhang, DQ ^{[1
]}

Sun, HW ^{[1
]}

机构：

[1] Hebei Univ, Coll Chem & Environm Sci, Baoding 071002, Peoples R China

来源：

CHINESE JOURNAL OF ANALYTICAL CHEMISTRY | 2002年 / 30卷 / 09期

关键词：

derivative technique; atom trapping; flame atomic absorption spectrometry; copper; Chinese herbs;

D O I：

暂无

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The trapping equipment was modified to simplify the equipment and the operation. And the derivative flame atomic absorption spectrometry (FAAS) combined with atom trapping technique was applied to the determination of copper in Chinese herbs. The characteristic concentration and detection limit for Cu were 0.85 and 0.52 mug/L, respectively, for a 10 mV/min sensitivity range setting and 2 min collection time, which were enhanced by 2 and I orders of magnitude compared with the conventional FAAS. The content of trace copper in several Chinese herbs was determined and the recovery was in the range of 94.2% similar to 104%.

引用

页码：1143 / 1146

页数：4

共 5 条

[1]

LIU LH, 1999, ANAL LAB, V18, P65

[2]

Sun HW, 1997, SPECTROCHIM ACTA B, V52, P727

[3] Direct determination of silver at parts-per-billion level in waters by derivative atomic absorption spectrometry using the atom trapping technique [J].

Sun, HW ;

Yang, LL ;

Zhang, DQ ;

Sun, JM .

ANALYTICA CHIMICA ACTA, 1997, 353 (01) :79-84

[4]

WANG W, 1993, LANZHOU YIXUEYUAN XU, V19, P20

[5] Determination of cadmium in vegetables by derivative flame atomic absorption spectrometry with the atom trapping technique [J].

Zhang, DQ ;

Li, CM ;

Yang, LL ;

Sun, HW .

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 1998, 13 (10) :1155-1158

← 1 →