Determining microplastics in environmental samples quickly and reliably is a challenging task. With a largely automated combination of optical particle analysis, Fourier transform infrared (FT-IR), and Raman microscopy along with spectral database search, particle sizes, particle size distributions, and the type of polymer including particle color can be determined. We present a self-developed, open-source software package for realizing a particle analysis approach with both Raman and FT-IR microspectroscopy. Our software GEPARD (Gepard Enabled PARticle Detection) allows for acquiring an optical image, then detects particles and uses this information to steer the spectroscopic measurement. This ultimately results in a multitude of possibilities for efficiently reviewing, correcting, and reporting all obtained results.

中文翻译：

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EXPRESS：使用傅里叶变换红外和拉曼光谱法对微塑料样品进行高通量分析

快速可靠地测定环境样品中的微塑料是一项具有挑战性的任务。通过光学颗粒分析、傅里叶变换红外 (FT-IR) 和拉曼显微镜以及光谱数据库搜索的高度自动化组合，可以确定颗粒尺寸、颗粒尺寸分布和聚合物类型，包括颗粒颜色。我们提出了一个自行开发的开源软件包，用于实现拉曼和 FT-IR 显微光谱的粒子分析方法。我们的软件 GEPARD（启用 Gepard 的粒子检测）允许获取光学图像，然后检测粒子并使用此信息来引导光谱测量。这最终为有效地审查、纠正和报告所有获得的结果提供了多种可能性。