Electrothermal atomic absorption spectrometric determination of lead in calcium drug samples by direct atomization technique

被引：18
作者：
Ahsan, S [1 ]
Kaneco, S
Ohta, K
Mizuno, T
Suzuki, T
Miyada, M
Taniguchi, Y
机构：
[1] Mie Univ, Fac Engn, Dept Chem Mat, Tsu, Mie 514, Japan
[2] Mie Univ, Environm Preservat Ctr, Tsu, Mie 514, Japan
[3] Mie Ind Res Inst, Tsu, Mie 514, Japan
来源：
ANALYTICA CHIMICA ACTA | 1998年 / 362卷 / 2-3期
关键词：
lead; direct atomization; drug sample; electrothermal atomization; molybdenum tube atomizer;
D O I：
10.1016/S0003-2670(98)00067-1
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The direct determination of lead in calcium drug samples by electrothermal atomic absorption spectrometry (ETAAS) with a molybdenum tube atomizer has been developed. Direct calibration with lead standard solutions together with matrix elements (CaHPO4 or CaCo3) and ultrasonic agitation of a solution including the sample powder were used. Thiourea served as a matrix modifier to eliminate the interference of matrix elements. Analytical results obtained from four calcium drug samples by direct atomization are in good conformity with the dissolved acid digested samples. Advantages of this method are simplicity, rapid calibration, fast analysis and low cost. (C) 1998 Elsevier Science B.V.
引用
收藏
页码：279 / 284
页数：6
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