Development and Application of a Hydride Generation Laser Induced Fluorescence Method for Measurements of Bismuth

被引：2

作者：

Gondi, R. ^{[1
]}

Ezer, M. ^{[2
]}

Copploe, J. V. ^{[1
]}

Frazzini, A. E. ^{[1
]}

Simeonsson, J. B. ^{[1
]}

机构：

[1] Youngstown State Univ, Dept Chem, Youngstown, OH 44555 USA

[2] Kahramanmaras Sutcu Imam Univ, Dept Chem, Fac Sci & Arts, TR-46050 Kahramanmaras, Turkey

来源：

ANALYTICAL LETTERS | 2013年 / 46卷 / 10期

关键词：

Bismuth; HG LIF; Hydride generation; Laser induced fluorescence; Tea leaves; INDUCTIVELY-COUPLED PLASMA; SPECTROMETRIC DETERMINATION; TRACE-ELEMENTS; TEA LEAVES; SELENIUM; ANTIMONY; SAMPLES; TELLURIUM; INFUSIONS; FOODS;

D O I：

10.1080/00032719.2013.773435

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A hydride generation laser induced fluorescence (HG LIF) approach has been investigated for trace level measurements of bismuth. The technique uses a tunable dye laser operating at 306.7nm as the excitation source and bismuth fluorescence is measured at 472nm. The optimized HCl and NaBH4 concentrations for bismuth measurements were 1.2M and 2.0%, respectively. The current technique has a limit of detection of 0.03 ppb and 0.01 ppb for blank measurements performed with the laser tuned on and off the bismuth excitation wavelength, respectively. Measurements of bismuth in different sample matrices have demonstrated the effectiveness of thiourea and ascorbic acid as masking agents for measuring samples containing interfering ions. Measurements of bismuth have been performed in reference materials, a bismuth-containing medication, and tea leaves. The results demonstrate that the HG LIF approach has feasibility for measuring bismuth in various samples at environmentally relevant concentrations.

引用

页码：1553 / 1561

页数：9

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