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采用氢气焰离子化检测器(FID),以正丁醇为外标物,PEG-20M为固定相,甲醇作为溶剂,气相色谱法测定复合材料人工颅骨中微量MMA的含量。其相对标准偏差<0.022,平均回收率(n=4)为98.0％～99.1％。此方法操作简便,用于实际样品分析可得到满意的结果。
The content of trace MMA in composite artificial skull was determined by gas chromatography with hydrogen flame ionization detector (FID), n-butanol as external standard, PEG-20M as stationary phase and methanol as solvent. The relative standard deviation was <0.022. The average recovery (n = 4) was 98.0% ~ 99.1%. This method is easy to use and gives satisfactory results for actual sample analysis.