建立了一种利用液相微萃取技术进行样品前处理、高效液相色谱进行测定的复杂基质中柠檬酸分析的简便方法.研究表明,该样品前处理方法集萃取、富集、净化为一步,具有快速、有效、绿色的特点;测定方法的线性范围为0.7~600 μg/mL,相关系数为0.999 5,检测限为0.27 μg/mL(S/N=3),相对标准偏差小于5%.
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