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选用气相色谱仪对４甲基二苯甲酮进行了分析研究，方法变异系数０５％，回收率９９９％～１００．７％。
The gas chromatography was used to analyze 4-methylbenzophenone. The coefficient of variation (CV) was 0.5% and the recovery rate was 99.9% -100.7%.