2024/03/27 by Timm, Kurt, Brock, Thomas Helmut, Hebisch, Ralph +2
#543 Analytical chemistry #543 Analytische Chemie #571.95 Toxicology #571.95 Toxikologie #616.9803 Betriebs- und Arbeitsmedizin #616.9803 Industrial and occupational medicine #AG Analytik #Analysenmethode #Arbeitsplatzmessung #Bestimmungsgrenze #Blei(II)chromat #Bleichromat #Chrom #Chrom(VI) #Chrom(VI)oxid #Chrome yellow #Chromgelb #Chromic acid #Chromic anhydride #Chromium #Chromium trioxide #Chromium(VI) oxide #Chromkali #Chromsaures Kalium #Chromsäureanhydrid #Chromtrioxid #DGUV #DGUV Information 213-505 #Deutsche Gesetzliche Unfallversicherung #Dichromic acid #Dikaliumchromat #Dikaliumdichromat #Dipotassium chromate #Dipotassium dichromate #Doppelchromsaures Kalium #Einatembare Staubfraktion #Externe Kalibrierung #Flüssigdesorption #GSP Sammelkopf #GSP sampling head #Gefahrstoff #German Social Accident Insurance #IC-UV/VIS #Ion chromatography with post-column derivatization and UV/VIS detection #Ionenchromatographie mit Nachsäulenderivatisierung und UV/VIS-Detektion #Kaliumbichromat #Kaliumchromat #Kaliumdichromat #Kaliumpyrochromat #Lead chromate #Lead(II) chromate #Luft #Luftanalysen #Messbereich #Methode 05 #PTFE filter #PTFE-Filter #Pariser Gelb #Potassium bichromate #Potassium chromate #Potassium dichromate #Probenahme #Präzision #Selektivität #UV/VIS-Detection #Wiederfindung #air #air analyses #analytical method #chromium(VI) #external calibration #hazardous substance #hexavalent chromium #hexavalentes Chrom #inhalable dust faction #limit of quantification #liquid desorption #measurement range #method 05 #potassium salt #precision #recovery #sampling #selectivity #working group analytics #workplace measurement
paper · doi:10.34865/am778900e9_1or
This analytical method is a validated measurement procedure for the determination of particular hexavalent chromium e.g. potassium chromate [7789-00-6], potassium dichromate [7778-50-9], chromium(VI) oxide [1333-82-0] and lead(II) chromate [7758-97-6] after personal or stationary sampling. Sampling is performed by drawing a defined volume of air through a polymer membrane filter using a suitable flow-regulated pump. After liquid desorption, the hexavalent chromium retained on the filter is analysed using ion chromatography with UV/VIS detection after post-column derivatisation. The relative limit of quantification (LOQ) is 0.10 µg Cr(VI)/m3 for an air sample volume of 1.2 m3. The mean recovery for soluble hexavalent chromium was 98 to 103%. The concentration-dependent expanded uncertainty was 22%. This analytical method has been accredited by the accident insurance companies for the detection in workplace air of substances that are carcinogenic, mutagenic or toxic to reproduction. This method has been tested and recommended for the determination of hexavalent chromium in work areas by the German Social Accident Insurance (DGUV). Both personal and stationary sampling can be performed for measurements in order to evaluate work areas.