ISO 9855:1993 环境空气.从滤器中收集到的悬浮粒气体中铅粒含量的测定.原子吸收光谱测定法

标准编号：ISO 9855:1993

中文名称：环境空气.从滤器中收集到的悬浮粒气体中铅粒含量的测定.原子吸收光谱测定法

英文名称：Ambient air — Determination of the particulate lead content of aerosols collected on filters — Atomic absorption spectrometric method

发布日期：1993-10

标准范围

规定方法的原理基于用酸消化过滤器上收集的颗粒材料，溶解存在的任何铅，并通过原子吸收光谱法（AAS）分析样品溶液。该方法适用于含有颗粒铅含量的环境空气样品，如果使用火焰原子吸收法，则过滤器上收集的沉积颗粒铅含量大于1μg。石墨炉原子吸收光谱法的最终测定允许测量小于1μg的量，但仅在检测限的实验验证后适用。

The principle of the method specified is based on digesting with acid the particulate material collected on a filter, solubilizing any lead present und analysing the sample solution by atomic absorption spectrometry (AAS). The method is applicable to ambient air samples with particulate lead contents, such that the amount of deposited particulate lead collected on the filter is greater than 1 μg if flame AAS is used. Final determination by graphite furnace AAS allows measurement of quantities of less than 1 μg, but is only applicable after experimental validation of detection limits.

标准预览图