ISO/TS 24672:2023 纳米技术 纳米颗粒数浓度测量指南

标准编号:ISO/TS 24672:2023

中文名称:纳米技术 纳米颗粒数浓度测量指南

英文名称:Nanotechnologies — Guidance on the measurement of nanoparticle number concentration

发布日期:2023-11

标准范围

本文件概述了用于测定液体分散体和气溶胶中纳米颗粒数量浓度的方法。所描述的方法是差示离心沉降(DCS)、多角度动态光散射(MDLS)、小角度X射线散射(SAXS)和紫外-可见光谱(UV-vis)的集合测量技术,以及粒子跟踪分析(PTA)、电阻脉冲传感(RPS)、单粒子电感耦合等离子体质谱(spICP-MS)、凝聚粒子计数器(CPC)和差示迁移率分析系统(DMAS)的粒子计数方法。本文档提供了每种技术的使用信息,以及对样品制备、优点和局限性的考虑。

This document provides an overview of the methods used to determine the nanoparticle number concentration in liquid dispersions and aerosols. The methods described are the ensemble measurement techniques of differential centrifugal sedimentation (DCS), multi-angle dynamic light scattering (MDLS), small-angle X-ray scattering (SAXS) and ultraviolet-visible spectroscopy (UV-vis) and the particle counting methods of particle tracking analysis (PTA), resistive pulse sensing (RPS), single particle inductively coupled plasma mass spectrometry (spICP-MS), condensation particle counter (CPC), and differential mobility analysing system (DMAS). This document provides information on the use of each technique, along with considerations on sample preparation, advantages and limitations.

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