BS ISO 21264:2019 pdf free.Surface active agents - Detergents -Determination of alkylphenol ethoxylates. The sample is weighed into a vial and extracted in methanol using an ultrasonic bath. Subsequently the extract is filtered and analysed using high performance chromatography system with diode array detector (DAD> or fluorescence detector (FLD). Quantification is achieved by external quantification method and using the relationship...
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