Water quality — Determination of selected elements by inductively coupled plasma optical emission spectrometry (ICP-OES)
水质与灰分;电感耦合等离子体发射光谱法(ICP-OES)测定选定元素
发布日期:
2007-07-30
ISO 11885:2007规定了以下元素的溶解元素、与颗粒结合的元素(“颗粒”)以及不同类型水中(如地面、地面、原水、饮用水和废水)元素总含量的测定方法:铝、锑、砷、钡、铍、铋、硼、镉、钙、铬、钴、铜、镓、铟、铁、铅、,锂、镁、锰、钼、镍、磷、钾、硒、硅、银、钠、锶、硫、锡、钛、钨、钒、锌和锆。
考虑到特定的和额外发生的干扰,这些元素也可以在水、淤泥和沉积物的消化液中测定(例如,ISO 15587-1或ISO 15587-2中规定的水的消化液)。该方法适用于废水中颗粒物的质量浓度低于2 g/l。如果可以证明考虑并仔细校正了额外发生的干扰,则该方法的范围可扩展到其他基质或更大量的颗粒物。
这取决于用户如何证明其适用性。
ISO 11885:2007 specifies a method for the determination of dissolved elements, elements bound to particles ("particulate") and total content of elements in different types of water (e.g. ground, surface, raw, potable and waste water) for the following elements: aluminium, antimony, arsenic, barium, beryllium, bismuth, boron, cadmium, calcium, chromium, cobalt, copper, gallium, indium, iron, lead, lithium, magnesium, manganese, molybdenum, nickel, phosphorus, potassium, selenium, silicon, silver, sodium, strontium, sulfur, tin, titanium, tungsten, vanadium, zinc and zirconium.
Taking into account the specific and additionally occurring interferences, these elements can also be determined in digests of water, sludges and sediments (for example, digests of water as specified in ISO 15587?1 or ISO 15587?2). The method is suitable for mass concentrations of particulate matter in waste water below 2 g/l. The scope of this method may be extended to other matrices or to higher amounts of particulate matter if it can be shown that additionally occurring interferences are considered and corrected for carefully. It is up to the user to demonstrate the fitness for purpose.