Determination and speciation of Hg using HPLC-AFS by atomization of this metal on a UV/nano-ZrO2/HCOOH photocatalytic reduction unit
Determination and speciation of Hg using HPLC-AFS by atomization of this metal on a UV/nano-ZrO2/HCOOH photocatalytic reduction unit
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使用 HPLC-AFS 通过在 UV/纳米 ZrO2/HCOOH 光催化还原装置上雾化该金属来测定 Hg 和形态
DOI:
10.1039/c4ja00455h
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发表时间:
2015-03
影响因子:
3.4
通讯作者:
Wang Qiuquan
中科院分区:
文献类型:
--
作者:
Li Huamin;Xu Zhiguo;Yang Limin;Wang Qiuquan
A novel UV/nano-ZrO2/HCOOH system was developed and fabricated as an atomization unit and as an online interface between HPLC and AFS for Hg determination and speciation for the first time. UV-generated electrons at the conduction band of nano-ZrO2 reduce mercury species into mercury cold vapor, achieving mercury atomization for AFS determination. The LODs (3σ) of inorganic mercury (Hg2+), methylmercury (MeHg) and ethylmercury (EtHg) tested in this study were respectively reduced to 10, 6, and 8 ng L−1 when using AFS under flow injection mode (FI). Moreover, Hg speciation could also be performed when coupled with HPLC, and the LODs (3σ) of Hg2+, MeHg and EtHg were 24, 13, and 16 ng L−1, respectively, using the HPLC-(UV/nano-ZrO2/HCOOH)-AFS system, with the RSDs better than 4.6% (n = 6) at 20 μg L−1 each. FI-(UV/nano-ZrO2/HCOOH)-AFS and HPLC-(UV/nano-ZrO2/HCOOH)-AFS were validated by analyzing a certified reference material (GBW10029, tuna fish) and applied to mercury determination and speciation of the local seafood around Xiamen Island.
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影响因子:
3.4
作者:
Qiuquan Wang;Jing Liang;J. Qiu;Benli Huang
通讯作者:
Qiuquan Wang;Jing Liang;J. Qiu;Benli Huang
影响因子:
7.4
作者:
Zhenli Zhu;G. C. Chan;S. Ray;Xinrong Zhang;G. Hieftje
通讯作者:
Zhenli Zhu;G. C. Chan;S. Ray;Xinrong Zhang;G. Hieftje
DOI:
10.1016/j.sab.2014.09.019
发表时间:
2014-11
期刊:
Spectrochimica Acta Part B: Atomic Spectroscopy
影响因子:
--
作者:
Daiane P. C. de Quadros;B. Campanella;M. Onor;E. Bramanti;Daniel L. G. Borges;A. D’Ulivo
通讯作者:
Daiane P. C. de Quadros;B. Campanella;M. Onor;E. Bramanti;Daniel L. G. Borges;A. D’Ulivo
影响因子:
7.4
作者:
Li, Huamin;Luo, Yacui;Wang, Qiuquan
通讯作者:
Wang, Qiuquan
DOI:
10.1039/c3mt00016h
发表时间:
2013-06
期刊:
Metallomics : integrated biometal science
影响因子:
--
作者:
Ming Xu;Limin Yang;Qiuquan Wang
通讯作者:
Ming Xu;Limin Yang;Qiuquan Wang