以尼莫地平为内标，样品采用液-液萃取。
The samples were extracted by liquid-liquid extraction method.
以氯唑沙宗为内标，血浆样品以蛋白沉淀法处理。
The analytes were extracted by protein precipitation, using chlorzoxazone as internal standard.
采用DB - 1大口径毛细管柱，以正丙醇为内标进行定量。
DB-1 wide bore capillary column was used with n-propanol as internal standard.
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