纳米技术—石墨烯相关二维材料粉末和液体分散体的化学表征

[中文适用范围]： ISO/TS 23359:2025是一项技术规范，描述了使用适当测量技术对含有石墨烯相关二维材料的粉末或液体分散体的化学性质进行表征的方法。本文件涵盖了使用以下技术测定元素组成、氧碳比、痕量金属杂质、化学物种和官能团的重量百分比：• X射线光电子能谱（XPS）；• 热重分析（TGA）；• 电感耦合等离子体质谱（ICP-MS）；• 傅里叶变换红外光谱（FTIR）。本文件还涵盖了不同技术的样品制备、操作规程和数据分析。 [外文原描述]： ISO TS 23359:2025, which is a Technical Specification, describes methods for characterising the chemical properties of powders or liquid dispersions containing graphene-related two-dimensional materials, using a set of suitable measurement techniques. This document covers the determination of elemental composition, oxygen to carbon ratio, trace metal impurities, weight percentage of chemical species and functional groups present, by use of the following techniques: • X-ray photoelectron spectroscopy (XPS); • thermogravimetric analysis (TGA); • inductively coupled plasma mass spectrometry (ICP-MS); • Fourier-transform infrared spectroscopy (FTIR). This document covers sample preparation, protocols and data analysis for the different techniques.