TY - JOUR
T1 - Characterization of structure isomers of ethylbenzalkyl dimethyl ammonium chlorides and quantification in commercial household disinfectant products
AU - Ahmad, Raees
AU - Cho, Eunji
AU - Rakhmat, Sultonov
AU - Hyun, Moonjung
AU - Park, Chang Beom
AU - Kim, Sunghwan
N1 - Publisher Copyright:
© 2022 The Authors
PY - 2023/2
Y1 - 2023/2
N2 - Quaternary ammonium compounds (QACs), such as benzalkonium chlorides (BACs) and ethylbenzalkyl dimethyl ammonium chlorides (EBACs), are a major class of chemicals that have been widely used in disinfectants during the pandemic. However, there has been limited information on the EBACs. Specially, structure isomers of EBACs in commercial products have not been characterized. This study involves the structural characterization and quantification of EBACs in three different commercial disinfectants by using ultrahigh resolution and cyclic ion mobility mass spectrometry (UHR-MS and cIM-MS). The toxic fractions of disinfectants were analyzed and a homologue series of EBACs were identified. The main components of the disinfectants analyzed were C12 and C14 EBACs. Furthermore, the ortho and para structural isomers of EBACs were determined based on cIM-MS data. A method for quantifying the total amount of EBACs homologues and isomers was developed and EBACs were detected in commercial disinfectants in concentrations reaching up to 213.3μg/mL. This study is the first to report a though evaluation of EBACs in household disinfectant products.
AB - Quaternary ammonium compounds (QACs), such as benzalkonium chlorides (BACs) and ethylbenzalkyl dimethyl ammonium chlorides (EBACs), are a major class of chemicals that have been widely used in disinfectants during the pandemic. However, there has been limited information on the EBACs. Specially, structure isomers of EBACs in commercial products have not been characterized. This study involves the structural characterization and quantification of EBACs in three different commercial disinfectants by using ultrahigh resolution and cyclic ion mobility mass spectrometry (UHR-MS and cIM-MS). The toxic fractions of disinfectants were analyzed and a homologue series of EBACs were identified. The main components of the disinfectants analyzed were C12 and C14 EBACs. Furthermore, the ortho and para structural isomers of EBACs were determined based on cIM-MS data. A method for quantifying the total amount of EBACs homologues and isomers was developed and EBACs were detected in commercial disinfectants in concentrations reaching up to 213.3μg/mL. This study is the first to report a though evaluation of EBACs in household disinfectant products.
KW - Collision cross-section
KW - Ion-mobility
KW - Isomer identification
KW - Quantitative analysis
KW - Ultrahigh-performance liquid chromatography-high-resolution mass spectrometry
UR - http://www.scopus.com/inward/record.url?scp=85144366706&partnerID=8YFLogxK
U2 - 10.1016/j.eti.2022.102979
DO - 10.1016/j.eti.2022.102979
M3 - Article
AN - SCOPUS:85144366706
SN - 2352-1864
VL - 29
JO - Environmental Technology and Innovation
JF - Environmental Technology and Innovation
M1 - 102979
ER -