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BS EN ISO 10304-4:2000
Water quality. Determination of dissolved anions by liquid chromatography of ions-Determination of dissolved chlorate, chloride and chlorite in water with low contamination- Historical Version
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BS EN ISO 10304-4:2000
Water quality. Determination of dissolved anions by liquid chromatography of ions-Determination of dissolved chlorate, chloride and chlorite in water with low contamination- Historical Version
About This Item
Full Description
This part of ISO 10304 specifies a method for the determination of the dissolved anions chlorate, chloride, and chlorite in water with low contamination (e.g. drinking water, raw water or swimming pool water).
An appropriate pretreatment of the sample (e.g. dilution) and the use of a conductivity detector (CD), UV detector (UV) or amperometric detector (AD) make the working ranges given in table 1 feasible.
Table 1 - Working ranges of the analytical method | ||
---|---|---|
Anion | Working range mg/l* | Detection |
Chlorate | 0,03 to 10 | CD |
Chloride | 0,1 to 50 | CD |
Chlorite** | 0,05 to 1 | CD |
0,1 to 1 | UV; λ = 207 nm to 220 nm | |
0,01 to 1 | AD; 0,4 to 1,0 V | |
* The working range is restricted by the ion-exchange capacity of the columns. Dilute the sample in to the working range, if necessary. | ||
** The minimum working range for chlorite of 0,05 mg/l was obtained using calibration checks, but the round robin trials (annex A, table A.4) showed that it is difficult to obtain this with sufficient accuracy. Thus great care shall be taken when working in the lower range of this method. |
Document History
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ISO 10304-4:2022
Water quality - Determination of dissolved anions by liquid chromatography of ions - Part 4: Determination of chlorate, chloride and chlorite in water with low contamination- Most Recent
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ISO 10304-4:1997
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Water quality - Determination of dissolved anions by liquid chromatography of ions - Part 4: Determination of chlorate, chloride and chlorite in water with low contamination- Historical Version