反相离子对色谱法测定五氟苯甲酸

Speciality Petrochemicals(2006)

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Abstract
用反相离子对色谱测定五氟苯甲酸,采用Shimpack C18色谱柱(150 mm×6 mm,5μm),流动相:甲醇-0.02 mol/L四丁基氢氧化铵(体积比7∶3),pH=2.5(H3PO4)。流速1 mL/min,柱温25℃,检测波长268nm。测定五氟苯甲酸的线性范围为16.61~415.2 mg/L,回归方程为y=8 584x+94.93,r=0.998 1(n=7),平均加标回收率98.8%。相对标准方差为1.46%(n=6)。
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Key words
pentafluorobenzoic,reversed-phase ion pair chromatography,analytical method
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