Soil quality. Determination of linear alkylbenzene sulfonate (LAS). Method by HPLC with fluorescence detection (LC-FLD) and mass selective detection (LC-MSD)
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Soil quality. Determination of linear alkylbenzene sulfonate (LAS). Method by HPLC with fluorescence detection (LC-FLD) and mass selective detection (LC-MSD)
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This Technical Specification specifies a method for the determination of linear alkylbenzene
sulfonate (LAS) in sludge, treated biowaste and soil using high-performance liquid
chromatography (HPLC) with a fluorescence detector (FLD) or a mass selective detector
(MSD).
This Technical Specification specifies the determination of the sum of LAS. Under
the conditions specified in this Technical Specification, typically a limit of detection
of 20 mg/kg (expressed as dry matter) for sludge and of 0,2 mg/kg to 0,5 mg/kg for
soil and treated biowaste may be achieved.
Lower limits of detection may be achieved by concentrating the extract by solvent
evaporation.
NOTE The single LAS homologues C10 to C14 can be determined by this Technical Specification.
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