Highly sensitive electrochemical determination of sulfate in PM2.5 based on the formation of heteropoly blue at poly-l-lysine-functionalized graphene modified glassy carbon electrode in the presence of cetyltrimethylammonium bromide
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- 作者：Liangyun Yua ; b ; Qin Xua ; Dangqin Jinc ; Qi Zhangb ; Airong Maob ; Yun Shua ; Bingyi Yana ; Xiaoya Hua ; xyhu@yzu.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Electrochemical determination ; Sulfate ; PM2.5 ; Poly-l-lysine ; Graphene ; Cetyltrimethylammonium bromide
- 刊名：Chemical Engineering Journal
- 出版年：2016
- 出版时间：15 June 2016
- 年：2016
- 卷：294
- 期：Complete
- 页码：122-131
- 全文大小：1775 K
文摘
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Voltammetric detection of sulfate based on the oxidation current of heteropoly blue.
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Poly-l-lysine-functionalized graphene was used as a matrix.
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Cetyltrimethylammonium bromide was employed to enhance the sensor sensitivity.
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Sulfate in PM2.5 was successfully assayed by the proposed approach.
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The developed method had a high sensitivity and a wide linear range.