| 水中挥发酚的在线蒸馏-固相萃取分离富集及测定 |
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| 引用本文： | 陈明丽,胡海珠,王建华,王静,霍玉美.水中挥发酚的在线蒸馏-固相萃取分离富集及测定[J].中国科学:化学,2011(5):878-883. |
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| 作者姓名： | 陈明丽 胡海珠 王建华 王静 霍玉美 |
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| 作者单位： | 东北大学分析科学研究中心;聚光科技(杭州)股份有限公司; |
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| 基金项目： | 国家自然科学基金(20805004); 国家杰出青年科学基金(20725517); 国家自然科学基金重大国际合作项目(20821120292); 中央高校基本科研业务费(N090105001,N090605001&N090405004)的资助 |
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| 摘 要： | 在顺序注射系统中实现了挥发酚的快速自动在线蒸馏,并用AmberliteXAD-7树脂微填充柱对其与4-氨基安替比林的衍生物在线固相萃取,被富集的衍生物可用少量乙醇有效地洗脱回收,以分光光度法检测.方法可用于较高浓度挥发酚(mg/L)样品的测定,也可根据需要适当增大进样体积,经富集后实现更低浓度水平(μg/L)挥发酚的测定.当富集过程中进样体积为4mL时,方法测定挥发酚的线性范围为0.004~0.3mg/L,检出限为0.002mg/L,相对标准偏差为1.4%(0.1mg/L,n=9).对多种实际水样中的挥发酚进行了测定,加标回收实验的回收率在96%~102%之间.
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| 关 键 词： | 挥发酚 顺序注射 在线蒸馏 分离富集 分光光度法 |
On-line distillation and solid phase extraction preconcentration of volatile phenolic compounds in water samples with detection by spectrophotometry |
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| CHEN MingLi,HU HaiZhu,WANG JianHua,WANG Jing & HUO YuMei Research Center for Analytical Sciences,Northeastern University,Shenyang ,China Focused Photonics ,Inc.,Hangzhou ,China.On-line distillation and solid phase extraction preconcentration of volatile phenolic compounds in water samples with detection by spectrophotometry[J].Scientia Sinica Chimica,2011(5):878-883. |
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| Authors: | CHEN MingLi HU HaiZhu WANG JianHua WANG Jing & HUO YuMei Research Center for Analytical Sciences Northeastern University Shenyang China Focused Photonics Inc Hangzhou China |
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| Institution: | CHEN MingLi1,HU HaiZhu1,WANG JianHua1,WANG Jing2 & HUO YuMei2 1 Research Center for Analytical Sciences,Northeastern University,Shenyang 110819,China 2 Focused Photonics (Hangzhou),Inc.,Hangzhou 310052,China |
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| Abstract: | A novel sequential injection on-line distillation procedure for volatile phenolic compounds is developed. The derivative between phenol and 4-aminoantipyrine (4-APP) is adsorbed onto an Amberlite XAD-7 resin packed mini-column. The phenol-4-APP derivative retained on the mini-column is effectively recovered by using a small amount of ethanol followed by spectromphotometric detection. The present procedure is suitable for the direct determination of volatile phenolic compounds at mg/L levels. It can also be ... |
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| Keywords: | volatile phenolic compounds sequectial injection on-line distillation separation and preconcentration spectrophotemetry |
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