GB/T 24166-2009 Translated English of Chinese Standard. (GBT 24166-2009, GB/T24166-2009, GBT24166-2009): Determination of the content of chlorinated phenols in dye productshttps://www.chinesestandard.net, 22 feb 2020 - 12 pagina's This Standard specifies the method for the determination of chlorinated phenols (2,3,5,6-tetrachlorophenol and pentachlorophenol) in dye products. This Standard applies to the determination of chlorinated phenols (2,3,5,6-tetrachlorophenol and pentachlorophenol) using gas chromatography-mass selective detector (GC-MSD) and gas chromatography-electron capture detector (GC-ECD) for commercial dyes, dye products, dye intermediates and textile printing and dyeing additives. |
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260 5 Chromatographic 300 C Carrier acetic anhydride Acetylation analysis conditions Control Annex Capillary column Sample capture detector GC-ECD chlorinated phenols standards chlorophenol acetate chromatographic analysis Chromatographic columna Capillary chromatography analysis conditions column Sample inlet Column temperature Heating columna Capillary column conditions Control parameters content of chlorinated Control parameters Operating dye products electron capture detector external standard method extract extractor final constant volume Gas chromatography analysis gas chromatography-mass selective Gas chromatography-mass spectrometry GB/T inlet temperature 300 limit of determination Lower limit mass fraction wi mg/kg mixed standard solution mL of potassium mL/min Sample injection n-hexane Operating conditions Column parameters Operating conditions pentachlorophenol phenylmethyl polysiloxane stationary polysiloxane stationary phase potassium carbonate solution Sample injection 0.2 Sample injection method Sample inlet temperature sample mass sample solution selective detector GC-MSD single stock standard Splitless sample injection standard working solution stock standard solution temperature Heating rate/(°C/min Temperature/°C Hold time/min test results ultrasonic volume Sample injection