分析了用固上顶空气相色谱法测定PVC树脂中残留氯乙烯的影响因素，并对分析方法进行了优化，使其便于操作，并提高了检测效率和准确度。%Factors of influencing the determination of residual vinyl chloride content in PVC resin powers by using head-space gas chromatography were analyzed .The analysis method was opti-mized and was easy to operate with high efficiency and accuracy .
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