毛细管气相色谱法测定吉法酯中有机溶剂残留量
China Pharmacist(2012)
Abstract
目的:建立以毛细管气相色谱法测定吉法酯中正己烷、乙醇、乙酸乙酯、异丙醚和二甲苯5种有机溶剂残留量的方法。方法:采用Phenomenex ZB-WAXPLUS毛细管柱(30 m×0.25 mm,0.25μm),以氮气为载气,FID为检测器,溶液直接分流进样,检测吉法酯中正己烷、乙醇、乙酸乙酯、异丙醚和二甲苯的残留量。结果:几种溶剂完全分离,在所考察的线性范围内具有良好的线性关系,r>0.999 0,平均回收率在97.0%~101.0%范围内,RSD在0.5%~4.2%之间。结论:本法简便、快速、准确,适用于吉法酯中有机溶剂残留量的测定。
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Key words
GC,Gefarnate,Residual organic solvents,Direct injection
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