ISO 15587-1-2002 水质.测定水中所选元素的发酵作用.第1部分:王水发酵作用

标准号：ISO 15587-1-2002
中文标准名称：水质.测定水中所选元素的发酵作用.第1部分:王水发酵作用
英文标准名称：Water quality - Digestion for the determination of selected elements in water - Part 1: Aqua regia digestion
标准类型：Z16
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：Z16
国际标准分类号：13.060.50
适用范围：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 SiO2, TiO2 and AI2O3. 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.