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Standard 2012-10

DIN EN ISO 14403-1:2012-10

Water quality - Determination of total cyanide and free cyanide using flow analysis (FIA and CFA) - Part 1: Method using flow injection analysis (FIA); (ISO 14403-1:2012); German version EN ISO 14403-1:2012

German title
Wasserbeschaffenheit - Bestimmung von Gesamtcyanid und freiem Cyanid mittels Fließanalytik (FIA und CFA) - Teil 1: Verfahren mittels Fließinjektionsanalyse (FIA) (ISO 14403-1:2012); Deutsche Fassung EN ISO 14403-1:2012
Publication date
2012-10
Original language
German

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Publication date
2012-10
Original language
German
DOI
https://dx.doi.org/10.31030/1887614

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Overview

Methods using flow analysis automate wet chemical procedures and are particularly suitable for the processing of many analytes in water in large series of samples at a high frequency of analysis. Analysis can be performed by flow injection analysis (FIA) or continuous flow analysis (FFA). Both methods share the feature of an automatic introduction of the sample into a flow system (manifold) in which the analytes in the sample react with reagent solutions on their way through the manifold. Sample preparation may be integrated in the manifold. The reaction product is measured in a flow detector (for example, flow photometer). This part of ISO 14403 only describes the FIA method. This document 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, for example, by diluting the original sample or using a different injection volume. For this method, a suitable mass concentration range from 20 µg/l to 200 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. This standard is the German version of EN ISO 14403-1:2012 and has been prepared by ISO/TC 147/SC 2/WG 38 "Flow analysis method" in collaboration with Technical Committee CEN/TC 230 "Water analysis", the secretariat of which is held by DIN. The responsible German committee is NA 119-01-03-01-05 AK "Fließanalysenverfahren" ("Flow analytics method") at NA 119-01-03 AA "Wasseruntersuchung" ("Water analysis") at NAW and is funded by the Länderfinanzierungsprogramm "Wasser, Boden und Abfall" (federal funding programme "Water, soil and waste"). DIN EN ISO 14403:2002-07 has been divided into two parts; the CFA method as specified in ISO 14403:2002-07 is now dealt with in DIN EN ISO 14403-2. This standard DIN EN ISO 14403-1 covers the new FIA method. For this reason the text has been editorially adjusted in accordance with the division and the title has been modified accordingly.

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DOI
https://dx.doi.org/10.31030/1887614

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