%0 Journal Article %T A fast and robust method for the extraction and analysis of quaternary alkyl ammonium compounds from soil and sewage sludge %A Heyde, Benjamin Justus %A Barthel, Anne %A Siemens, Jan %A Mulder, Ines %J PLoS ONE %V 15 %N 8 %D 2020-08-04 %I Public Library of Science %~ DeepDyve