1.1 本规程涵盖了α光谱测量用分离锕系元素部分的制备。 2. 它适用于任何可以溶解在稀硫酸铵溶液中的锕系元素。适用的锕系元素组分示例为离子交换/萃取色谱分离的洗脱液或溶剂萃取分离的最终条带。 1.2 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。 本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 通过α光谱测量法测定锕系元素是许多环境研究、生物测定和监测项目的重要组成部分。 α光谱测量确定并量化α发射锕系元素。在进行α光谱测量的样品电沉积之前，通常会采用多种分离方法。除了本规程中介绍的电沉积程序外，科学文献还包含锕系元素电沉积的其他程序。 注1: 在实践中描述了一种通过与氟化钕共沉淀来安装锕系元素以进行α光谱测量的替代方法 C1163 .

1.1 This practice covers the preparation of separated actinide fractions for alpha spectrometry measurement. 2 It is applicable to any of the actinides that can be dissolved in dilute ammonium sulfate solution. Examples of applicable actinide fractions would be an elution from an ion exchange / extraction chromatography separation or the final strip from a solvent extraction separation. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 The determination of actinide elements by alpha spectrometry measurement is an essential part of many environmental research, bioassay, and monitoring programs. Alpha spectrometry measurements identify and quantify the alpha-emitting actinide elements. A variety of separation methods will typically precede the electrodeposition of a sample for alpha spectrometry measurements. In addition to the electrodeposition procedure presented in this practice, the scientific literature contains other procedures for actinide electrodeposition. Note 1: An alternate method for mounting actinides for alpha spectrometry measurements by coprecipitation with neodymium fluoride is described in Practice C1163 .