Extraction of Trace Microcystins in Water Using Fe3O4 @NiSiO3

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Extraction of Trace Microcystins in Water Using Fe3O4 @NiSiO3

- Extraction of Trace Microcystins in Water Using Fe3O4 @NiSiO3
- Vol. 35, Issue 9, Pages: 1137-1141(2016)
- 作者机构：
  
  1. 吉林化工学院化学与制药工程学院
  2. 东北师范大学化学学院
  3. 吉林大学化学学院
- 作者简介：
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Extraction of Trace Microcystins in Water Using Fe3O4 @NiSiO3. [J]. 35(9):1137-1141(2016)
DOI：

Extraction of Trace Microcystins in Water Using Fe3O4 @NiSiO3. [J]. 35(9):1137-1141(2016) DOI：

摘要

通过水热合成法和溶胶凝胶法制备Fe3O4@NiSiO3磁性纳米粒子，该纳米粒子微球具有均一的形貌、良好的磁性和分散性。将合成的Fe3O4@NiSiO3磁性纳米粒子作为磁性固相萃取（MSPE）介质，并结合高效液相色谱（HPLC）建立了水样中痕量微囊藻毒素MC-LR的分析方法。在优化实验条件下，方法在0.25~146.5 μg/L浓度范围内呈良好的线性关系，相关系数（r）为0.999 1，检出限为0.011 μg/L。将该方法用于纯水中微囊藻毒素的分析，回收率为81.0%，对实际水样的回收率为66.7%~72.0%。表明Fe3O4@NiSiO3磁性纳米粒子具有良好的选择性富集能力，可用于水中痕量微囊藻毒素的萃取。

Abstract

The Fe3O4@NiSiO3 magnetic nanoparticles（NPs） were prepared by hydrothermal synthesis and sol-gel method.The nanoparticles microspheres have uniform morphology，good magnetic properties and dispersion.In this study，the synthesized NPs as a magnetic solid phase extraction（MSPE） media were combined with high performence liquid chromatography（HPLC） to develop an effective method for the detection of trace microcystin-LR（MC-LR） in water samples.After optimizing the MSPE and HPLC chromatographic conditions，the method showed a good linear relationship in the range of 0.25-146.5 μg/L with correlation coefficient（r） of 0.999 1.The detection limit was 0.011 μg/L.The method was applied in the analysis of microcystin toxins in pure water sample and actual water samples with recoveries of 81.0% and 66.7%-72.0%，respectively.The results showed that Fe3O4 @NiSiO3 magnetic nanoparticles have good enrichment capability，and could be effectively used for the extraction of trace microcystin in water.

关键词

磁性固相萃取高效液相色谱微囊藻毒素磁性纳米粒子

Keywords

magnetic solid-phase extraction（MSPE）high performance liquid chromatography（HPLC）microcystins（MCs）magnetic nanoparticles

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