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SPE-HPLC测定污水中微量药物的方法研究

Determination of trace level new pharmaceuticals in wastewater by solid phase extraction-high performance liquid chromatography
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摘要 将固相萃取(SPE)预处理与高效液相色谱(HPLC)分析方法相结合,建立了一套针对污水中五种常见微量药物的检测方法。通过试验,确定了SPE预处理的最佳条件为:调节待测水样pH介于6~7,以甲醇为洗脱液,用量5.00mL,此方法的平均回收率为95%~120%;优化的HPLC分析条件为:柱温30℃,进样量30μL,采用甲醇、乙腈和乙酸乙酸铵缓冲液为洗脱液进行梯度洗脱,流速为0.8mL/min,采用二极管阵列检测器分析确定不同药物的特征吸收波长。通过试验得到方法的RSD≤6.49%,因此,可以用于实际污水中微量药物的分析检测。 将固相萃取(SPE)预处理与高效液相色谱(HPLC)分析方法相结合,建立了一套针对污水中五种常见微量药物的检测方法。通过试验,确定了SPE预处理的最佳条件为:调节待测水样pH介于6~7,以甲醇为洗脱液,用量5.00mL,此方法的平均回收率为95%~120%;优化的HPLC分析条件为:柱温30℃,进样量30μL,采用甲醇、乙腈和乙酸乙酸铵缓冲液为洗脱液进行梯度洗脱,流速为0.8mL/min,采用二极管阵列检测器分析确定不同药物的特征吸收波长。通过试验得到方法的RSD≤6.49%,因此,可以用于实际污水中微量药物的分析检测。
出处 《给水排水》 CSCD 北大核心 2012年第S1期85-89,共5页 Water & Wastewater Engineering
基金 教育部博士点新教师基金(20090014120018) 国家自然科学基金项目(51178046)
关键词 固相萃取 高效液相色谱 梯度洗脱 药物 Solid phase extraction High performance liquid chromatography Gradient elution Pharmaceutical
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参考文献19

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