Magnetic polyethyleneimine functionalized reduced graphene oxide as a novel magnetic solid-phase extraction adsorbent for the determination of polar acidic herbicides in rice
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- 作者：Na Lia ; b ; Juan Chena ; chenjuan@licp.cas.cn" class="auth_mail" title="E-mail the corresponding author ; Yan-Ping Shia ; shiyp@licp.cas.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Magnetic polyethyleneimine ; Reduced graphene oxide ; Magnetic solid-phase extraction ; Polar acidic herbicides ; Adsorption mechanism
- 刊名：Analytica Chimica Acta
- 出版年：2017
- 出版时间：1 January 2017
- 年：2017
- 卷：949
- 期：Complete
- 页码：23-34
- 全文大小：3195 K
文摘
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A novel Fe3O4@PEI-RGO was synthesized and applied for the analysis of polar acidic herbicides.
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PEI affected the surface property of RGO and changed the polarity of RGO.
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Fe3O4@PEI-RGO showed good extraction efficiency towards polar acidic herbicides.
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RSM was used to optimize parameters affecting the extraction efficiency.
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The absorption mechanism was discussed in detail.