Analysis of microplastic particles in environmental samples needs sophisticated techniques and is time intensive due to sample preparation and detection. Alternatives to the most common (micro-) spectroscopic techniques, Fourier transform infrared and Raman spectroscopy, are thermoanalytical methods, in which specific decomposition products can be analyzed as marker compounds for different kinds of plastic types and mass contents. Thermal extraction desorption gas chromatography–mass spectrometry allows the fast identification and quantification of MP in environmental samples without sample preparation. Whereas to date only the analysis of thermoplastic polymers has been realized, this is the first time that even the analysis of tire wear (TW) content in environmental samples has been possible. Various marker compounds for TW were identified. They include characteristic decomposition products of elastomers, antioxidants, and vulcanization agents. Advantages and drawbacks of these marker substances were evaluated. Environmental samples from street runoff were exemplarily investigated, and the results are presented.

中文翻译：

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两只鸟一石-微塑料的同时快速分析：源自热塑性和轮胎磨损的微粒

环境样品中的微颗粒分析需要复杂的技术，并且由于样品的制备和检测需要大量时间。傅立叶变换红外光谱和拉曼光谱是最常用的（微）光谱技术的替代方法，是热分析方法，在该方法中，可以将特定的分解产物作为各种塑料类型和质量含量的标记化合物进行分析。热萃取解吸气相色谱-质谱法可以快速鉴定和定量环境样品中的MP，而无需样品制备。迄今为止，仅实现了对热塑性聚合物的分析，这是首次甚至可以对环境样品中的轮胎磨损（TW）含量进行分析。鉴定了用于TW的各种标记化合物。它们包括弹性体，抗氧化剂和硫化剂的特有分解产物。评估了这些标记物的优缺点。示例性地调查了来自街道径流的环境样品，并给出了结果。