目的：采用高效毛细管气相色谱法同时测定保心安油中(-)-薄荷酮、薄荷脑和桂皮醛的含量。
Objective: to establish the contents determination method of (-) -menthone, menthol, cinnamic aldehyde in Po Sum on oil by capillary column gas chromatography.
目的比较了比色法、薄层色谱法、高效液相色谱法测定甲芬那酸中2,3 -二甲基苯胺杂质的方法，并建立了毛细管气相色谱法控制甲芬那酸中2,3 -二甲基苯胺的杂质限量。
Objective To compare colorimetry, TLC, HPLC, and establish a method for the limited control of 2, 3-dimethylaniline in mefenamic acid by GC with capillary column.
目的比较了比色法、薄层色谱法、高效液相色谱法测定甲芬那酸中2,3 -二甲基苯胺杂质的方法，并建立了毛细管气相色谱法控制甲芬那酸中2,3 -二甲基苯胺的杂质限量。
Objective To compare colorimetry, TLC, HPLC, and establish a method for the limited control of 2, 3-dimethylaniline in mefenamic acid by GC with capillary column.
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