Water quality — Determination of total cyanide and free cyanide using flow analysis (FIA and CFA) — Part 2: Method using continuous flow analysis (CFA)
水质与灰分;流动分析法(FIA和CFA)测定总氰化物和游离氰化物第2部分:连续流动分析法(CFA)
发布日期:
2012-07-10
ISO 14403-2:2012规定了未稀释样品中氰化物浓度通常为2μg/l至500μg/l(以氰化物离子表示)的各类水中氰化物(如地面、饮用水、地表水、渗滤液和废水)的测定方法。可通过改变操作条件来改变应用范围,例如稀释原始样品或改变流动池的路径长度。
在该方法中,描述了10μg/l至100μg/l的合适质量浓度范围。
分析海水时,试剂和校准溶液的灵敏度和适应性可能会发生变化,以适应样品的盐度。
ISO 14403-2:2012 specifies methods for the determination of cyanide in various types of water (such as ground, drinking, surface, leachate, and waste water) with cyanide concentrations usually from 2 μg/l to 500 μg/l expressed as cyanide ions in the undiluted sample. The range of application can be changed by varying the operation conditions, e.g. by diluting the original sample or changing the pathlength of the flow cell.
In this method, a suitable mass concentration range from10 μg/l to 100 μg/l is described.
Seawater can be analysed with possible changes in sensitivity and adaptation of the reagent and calibration solutions to the salinity of the samples.