| | 加工定制：是 | | 品牌：翔鹰技术 | | 型号：XiangyingGC7990plus | |
| | 测量范围：ppm | | 测量对象：制品中磷酸甲苯酯的测 | | 控温范围：400 ℃ | |
| | 功率：200 w | | 尺寸：480 mm | | 重量：46 kg | |
| | 高分子材料：食品接触材料 | | 聚氯乙烯（PVC）制品：磷酸甲苯酯 | | 包装材料：溶剂残留 | |
| | 顶空进样器：热解析仪 | | 室内空气污染物：TVOC | | | |
Polyvinyl chloride (PVC, Polyvinylchloride) is one of the world's largest production of plastic products, cheap, wide range of applications. Depending on the use of additives, PVC plastic can show different physical properties and mechanical properties. Adding a proper amount of plasticizer in PVC resin, such as two phthalate esters, phosphoric acid toluene ester, can be made into a variety of hard, soft and transparent products.
Tengzhou City Xiangying Analysis Technology Co., Ltd. established XiangyingGC7990plus gas chromatographic method for the determination of plasticizing agent content analysis method in polyvinyl chloride plastics tricresyl phosphate esters. Using tetrahydrofuran as solvent polyvinyl chloride is dissolved, with methanol as precipitating agent, effectively will increase plasticizer from the polymer separated were analyzed by gas chromatography with flame photometric detector. The three kinds of isomers of cresyl phosphate in 0.1 ~ 2.0 mg / l range linear relationship good. Correlation coefficient greater than 0.999. The average recovery rate was 82.9% - 99.1% between, determination of the relative standard deviation is 0.8% to 5.9%, the method detection limit was 50 mg / kg. The method is simple and accurate, and can be applied to the determination of the content of phosphoric acid ester plasticizer in polyvinyl chloride plastics.
聚氯乙烯(Polyvinylchloride,PVC)是世界上产量***大的塑料产品之一,价格便宜,应用广泛。根据用途加入不同的添加剂,聚氯乙烯塑料可呈现不同的物理性能和力学性能。在聚氯乙烯树脂中加入适量增塑剂,如邻苯二甲酸酯、磷酸甲苯酯等,可制成多种硬质、软质和透明制品。
滕州市翔鹰分析技术有限公司建立了XiangyingGC7990plus气相色谱法测定聚氯乙烯塑料制品中磷酸甲苯酯类增塑剂含量的分析方法。采用四氢呋喃作溶剂将聚氯乙烯塑料溶解,以甲醇为沉淀剂,有效地将增塑剂从聚合物中分离出来,再采用气相色谱-火焰光度检测器进行分析。磷酸甲苯酯的3种异构体在0.1～2.0mg/L范围内线性关系良好,相关系数大于0.999,方法平均回收率在82.9%～99.1%之间,测定结果的相对标准偏差为0.8%～5.9%,方法的检出限为50mg/kg。本方法操作简便,准确性好,适用于聚氯乙烯塑料中磷酸甲苯酯类增塑剂含量的测定。
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