水质.测定水中所选元素用浸提法.第1部分:王水浸提法 ISO 15587-1-2002

[中文适用范围]： 、原理、试剂配制、样品处理、浸提条件、分析方法及结果计算等方面，确保测试过程的准确性和可重复性。标准适用于相关行业和研究机构在进行水质分析时参考使用。 ***此介绍可能不准确，请注意参考原文。 [外文原描述]： This part of ISO 15587 specifies a method for extracting trace elements from a water sample using aqua regia as a digestion agent. The method is applicable to all types of waters with a suspended solids mass concentration of less than 20 g/l and a mass concentration of total organic carbon (TOC) expressed as carbon of less than 5 g/l. The aqua regia digestion method is empirical and it might not release elements completely. However, for most environmental applications, the result is fit for purpose. Aqua regia digestion is suitable for the release of: Ag, Al, As, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, Hg, K, Mg, Mn, Mo, Na, Ni, P, Pb, Sb, Se, Sn, Sr, Tl, V, Zn. It is not suitable for the digestion of refractory compounds such as SiO 2 , TiO 2 and Al 2 O 3 . The presence of chloride in the digestion solution may limit the application of analytical techniques. The method is generic and may be implemented using a wide variety of equipment provided the digestion composition is unchanged, the digestion temperature is known, and the digestion duration is in accordance with this temperature.