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本文提出了一种用固上顶空—气相色谱法(HS—GC)测定PVC树脂中主要残留有机毒物的方法。给出了定量计算公式和气固吸附平衡常数(ki)的求算步骤。并对国内外几个厂家的PVC树脂样品进行了测定。证实了残留氯乙烯单体(RVCM)并非是PVC树脂中唯一的主要残留毒物。
In this paper, a method for the determination of the main residual organic toxicants in PVC resin by headspace-gas chromatography (HS-GC) was proposed. The quantitative calculation formula and the steps of calculating the equilibrium constants of gas-solid adsorption (ki) are given. And several domestic and foreign manufacturers of PVC resin samples were measured. It was confirmed that residual vinyl chloride monomer (RVCM) is not the only major residual poison in PVC resin.