摘要
角膜接触镜护理液样品以乙酸乙酯超声提取,提取液经离心后供气相色谱测定。采用DB-Wax毛细管柱(30m×0.32mm,0.5μm)分离样品,氢火焰离子化检测器检测,内标法定量。薄荷脑线性范围为3.74～187.2mg.L-1,方法的检出限(3S/N)为0.15mg.L-1。方法用于护理液中薄荷脑的测定,回收率在98.3%～99.3%之间;相对标准偏差(n=6)在0.72%～1.95%之间。
Sample of cornea contact lens solution was ultrasonically extracted with ethyl acetate,centrifuged and the supernatant was used for GC determination.DB-Wax capillary column（30 m×0.32 mm,0.5 μm） was used for separation.FID and internal standard method were adopted in the determination.Linearity range of menthol found was between 3.74 and 187.2 mg·L-1,with detection limit（3S/N） of 0.15 mg·L-1.The proposed method was applied to the determination of menthol in cornea contact lens solution,giving values of recovery and RSD′s（n=6） in the ranges of 98.3%-99.3% and 0.72%-1.95% respectively.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2012年第3期262-264,共3页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
