Abstract The purpose of this study is to offer a quick and efficient way to screen out harmful additives in polymer materials and help in reducing the burden of confirming compliance with chemical regulations. Previous studies have demonstrated the possibility of using pyrolyzer/thermal desorption gas chromatography–mass spectrometry (Py/TD-GC–MS) to simultaneously determine various restricted additives in polymer materials on regulatory levels. However, in reality, such a screening technique has not yet been implemented, except for certain phthalates. The screening method has to be verified with actual samples before it can be accepted as a practical approach. Since there is no certified reference material (CRM) available for simultaneous determination of multiple additives, finding appropriate test samples is particularly crucial in the verification process. As a realistic solution to combat this situation, in-house reference materials (RMs) containing plasticizers and flame retardants were prepared as alternatives to CRMs from the mixtures of a standard solution and polymer solutions. Then, the analyte concentrations of the in-house RMs were screened via Py/TD-GC–MS. The results exhibited more than 70% of the setup values with a few exceptions. With regard to reproducibility, the relative standard deviation was less than 10% in most cases.

中文翻译：

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使用热解器/热解吸气相色谱质谱 (Py/TD-GC-MS) 验证同时筛选聚合物材料中的主要受限添加剂

摘要 本研究的目的是提供一种快速有效的方法来筛选聚合物材料中的有害添加剂，并有助于减轻确认符合化学法规的负担。先前的研究已经证明了使用热解器/热解吸气相色谱-质谱 (Py/TD-GC-MS) 在监管水平上同时测定聚合物材料中各种受限添加剂的可能性。然而，实际上，除某些邻苯二甲酸盐外，这种筛选技术尚未实施。筛选方法必须通过实际样品进行验证，然后才能被接受为实用方法。由于没有可用于同时测定多种添加剂的有证标准物质 (CRM)，找到合适的测试样本在验证过程中尤为重要。作为应对这种情况的现实解决方案，从标准溶液和聚合物溶液的混合物中制备含有增塑剂和阻燃剂的内部参考材料 (RM) 作为 CRM 的替代品。然后，通过 Py/TD-GC-MS 筛选内部 RM 的分析物浓度。除了少数例外，结果显示超过 70% 的设置值。在重现性方面，相对标准偏差在大多数情况下小于 10%。通过 Py/TD-GC-MS 筛选内部 RM 的分析物浓度。除了少数例外，结果显示超过 70% 的设置值。在重现性方面，相对标准偏差在大多数情况下小于 10%。通过 Py/TD-GC-MS 筛选内部 RM 的分析物浓度。除了少数例外，结果显示超过 70% 的设置值。在重现性方面，相对标准偏差在大多数情况下小于 10%。