EN 12918:1999 Water quality - Determination of parathion, parathion-methyl and some other organophosphorus compounds in water by dichloromethane extraction and gas chromatographic analysis
This European Standard specifies the extraction processes and gas chromatographic (GC) methods for determining parathion, parathion-methyl and some other organophosphorus compounds in drinking waters, surface waters and waste waters.This standard can also be suitable forThe determination of other organic compounds.The range is dependent onThe compound andThe source of water and is typically up to 1 μg/l with a reporting limit of 0,01 μg/l for drinking waters involving a 1 000 to 1 extraction ratio.Extraction efficiencies are normally less than 100 %. Bias will vary withThe extraction efficiency of any particular compound,The type of water andThe method used.Annex A contains a table of organophosphorus compounds andTheir recoveries
EN 12918:1999 history
1999EN 12918:1999 Water quality - Determination of parathion, parathion-methyl and some other organophosphorus compounds in water by dichloromethane extraction and gas chromatographic analysis