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溶胶 凝胶法制备芘丁酸 二氧化硅试剂相 (敏感膜 ) ,基于荧光多元猝灭响应的原理测定正己烷中正辛硫醇的含量。在 0 .84～ 16 .80mg/L浓度范围内与lg(F0 /F)呈线性 ;相关系数 0 9981;检出限 0 .81mg/L ;平均回收率为 10 3 2 %± 7 5 %
Preparation of pyrene butyric acid silica reagent phase (sensitive membrane) by sol - gel method and determination of n - octanethiol content in n - hexane based on the principle of fluorescence multiple quenching reaction. The calibration curve was linear with lg (F0 / F) in the range of 0.84 ~ 16 .80 mg / L with a correlation coefficient of 0 9981; the detection limit was 0.81 mg / L; the average recovery was 10 3 2% ± 7 5%