ISO 23655-2:2022 水质 镍-59和镍-63.第2部分：使用ICP-MS的试验方法
标准编号：ISO 23655-2:2022
中文名称：水质 镍-59和镍-63.第2部分：使用ICP-MS的试验方法
英文名称：Water quality — Nickel-59 and nickel-63 — Part 2: Test method using ICP-MS
发布日期：2022-09
标准范围
本文件规定了使用电感耦合等离子体质谱（ICP-MS）测定所有类型水样中镍-59和镍-63（59Ni和63Ni）活度浓度。使用目前可用的ICP-MS，该测试方法可以测量59Ni活度浓度为300？mBq？l？1和63Ni活度浓度为200？Bq？l？1.这些数值可以在样本量为1,0？l.可以通过稀释样品或使用较小的样品等分试样或两者来测量较高活性浓度。笔记？这些性能指标完全取决于各个实验室的测量制度；特别地，检测限受存在的稳定镍的量的影响。应用范围取决于水中溶解物质的量和测量设备的性能特征（背景计数率和计数效率）。实验室有责任确保本测试方法适用于所测试的水样。
This document specifies the determination of nickel-59 and nickel-63 (59Ni and 63Ni) activity concentration in samples of all types of water using inductively coupled plasma mass spectrometry (ICP-MS).Using currently available ICP-MS, this test method can measure 59Ni activity concentrations of 300 mBq？l？1 and 63Ni activity concentrations of 200 Bq？l？1. These values can be achieved with a sample volume of 1,0 l. Higher activity concentrations can be measured by either diluting the sample or using smaller sample aliquots or both.NOTE These performance indicators are wholly dependent on the measurement regimes in individual laboratories; in particular, the detection limit is influenced by amount of stable nickel present.The range of application depends on the amount of dissolved material in the water and on the performance characteristics of the measurement equipment (background count rate and counting efficiency).It is the laboratory’s responsibility to ensure the suitability of this test method for the water samples tested.
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