摘要:
建立了液体顶空气相色谱法测定盐酸马尼地平中有机溶剂残留量。采用DB-1大口径毛细管柱,以正丙醇为内标进行定量。甲醇、乙醇、异丙醇、乙醚、正丙醇及三氯甲烷的线性范围分别为1.5~61.6μg·mL^-1(r=0.9991),0.4~62.0μg·mL^-1(r==0.9994),1.6~64.4μg·mL^-1(r=0.9984),1.1~43.6μg·mL^-1(r=-0.9997)和1.5~63.2μg·mL^-1(r=0.9992);回收率分别为99.9%,103.8%,101.8%,97.7%和98.3%;最低检测限分别为0.02μg·g^-1,0.04μg·g^-1,0.02μg·g^-1。,0.01μg·g^-1和0.2μg·g^-1。本方法简单、准确、灵敏度及重现性好。