標準號：ISO 15587-1-2002
中文標準名稱：水質.測定水中所選元素的發酵作用.第1部分:王水發酵作用
英文標準名稱：Water quality - Digestion for the determination of selected elements in water - Part 1: Aqua regia digestion
標準類型：Z16
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：Z16
國際標準分類號：13.060.50
適用范圍：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.