Determination of trace vanadium in soil by cloud point extraction and graphite furnace atomic absorption spectroscopy

被引：0
作者：
Xiashi Zhu
Zheng Zhu
Shaobo Wu
机构：
[1] Yangzhou University,Key Laboratory of Environmental Material and Environmental Engineering of Jiangsu province/College of Chemistry and Chemical Engineering
来源：
Microchimica Acta | 2008年 / 161卷
关键词：
Keywords: Vanadium; cloud point extraction; methylene blue; Triton X-100; GFAAS;
D O I：
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学科分类号：
摘要：
This work describes a new analytical procedure for trace vanadium by graphite furnace atomic absorption spectroscopy coupled to cloud point extraction (CPE) as the separation-preconcentration method. The CPE behavior of vanadium using methylene blue as complex agent and Triton X-100 as a surfactant was investigated systematically. Under the optimized conditions, the detection limit was 0.7 ng · mL−1, and the relative standard deviation was 4.3% for vanadium (c = 50.0 ng · mL−1, n = 5). The recovery of vanadium was in the range of 98.9–102.8%. The method was applied to the analysis of vanadium in certified reference materials and real samples. The results obtained were in good agreement with the certified values.
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页码：143 / 148
页数：5
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