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利用环己烷苹取法提取高密度聚乙烯中的抗氧剂,然后在μ—Bondapak C_(18)柱上以乙醇/水作流动相的反相色谱条件下实现对各种抗氧剂的分离和测定.lrganox1010和Irgafos168的检测限分别达到0.063μg和0.123μg.本方法已成功地应用于聚乙烯的生产控制分析和质量跟踪试验.
The antioxidants in high density polyethylene were extracted by cyclohexane extraction method, then the separation of various antioxidants was carried out on μ-Bondapak C_ (18) column with reversed-phase chromatography with ethanol / water as mobile phase And the detection limits of lrganox1010 and lrgafos168 were 0.063μg and 0.123μg.The method has been successfully applied to polyethylene production control analysis and quality tracking test.