2023/06/29 by Dragan, George, Hebisch, Ralph, Frenzen, Adela +4
#1 #10-Punkt-Kalibrierung #10-point calibration #1′-Oxybisbenzene #1′-Oxybisbenzol #Analysenmethode #Arbeitsplatzmessung #Bestimmungsgrenze #DPE #Dampf #Dioden-Array-Detektion #Diphenyl ether #Diphenyl oxide #Diphenylether #Diphenyloxid #Externe Kalibrierung #GSP sampling head #GSP-Probenahmekopf #Gefahrstoff #HPLC-DAD #Hochleistungsflüssigkeitschromatographie mit Diodenarray-Detektion #Luft #Luftanalysen #Messbereich #Oxydibenzene #Partikel-Dampf-Gemisch #Phenoxybenzene #Phenoxybenzol #Phenylether #Probenahme #Präzision #Quarzfaserfilter #Selektivität #Silikagelröhrchen #Wiederfindung #air #air analyses #analytical method #einatembare Staubfraktion #external calibration #hazardous substance #high-performance liquid chromatography with diode array detection #inhalable dust fraction #limit of quantification #measurement range #precision #quartz fibre filter #recovery #sampling #selectivity #silica gel sorbent tube #vapour #vapour particle mixture #workplace measurement
paper · doi:10.34865/am10184e8_2or
This analytical method is a validated measurement procedure for the determination of diphenyl ether [101-84-8] in workplace air in a concentration range of one tenth up to twice the currently valid Occupational Exposure Limit Value (OELV) in Germany of 7.1 mg/m3. For sampling, a defined volume of air is drawn through a binder-free quartz fibre filter followed by a silica gel sorbent tube. The flow rate is set to 0.5 l/min and sampling duration is 2 hours (which corresponds to a sampling volume of 60 l). Diphenyl ether is extracted with 2-propanol and subsequently analysed using liquid chromatography with diode array detection. The quantitative determination is based on a calibration function. The limit of quantification is 0.008 mg/m3 based on an air sample volume of 60 l. The mean recovery is 95.3% and the expanded uncertainty for the validation range of 0.71 to 14.2 mg/m3 is 24 to 25%.