PMID- 29885999 OWN - NLM STAT- MEDLINE DCOM- 20180705 LR - 20181202 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1563 DP - 2018 Aug 17 TI - Determination of atmospheric alkylamines by ion chromatography using 18-crown-6 as mobile phase additive. PG - 154-161 LID - S0021-9673(18)30725-8 [pii] LID - 10.1016/j.chroma.2018.05.074 [doi] AB - An improved ion chromatographic method including two elution procedures was proposed for the quantitative determination of atmospheric alkylamines in field atmospheric samples involving high levels of inorganic cations by using 18-crown-6 as mobile phase additive. When 18-crown-6 was added to the mobile phase, the retention times increased significantly for Na(+), NH(4)(+), K(+) and primary alkylamines but decreased for secondary and tertiary alkylamines due to the complexation with certain cations and interaction with both stationary and mobile phases of 18-crown-6. As a result, the separation of the cations was greatly promoted, which reduced the interference of peak distortion of overloaded inorganic cations on the quantitation of adjacent alkylamines. By using the presented method, five inorganic cations (Na(+), NH(4)(+), K(+), Mg(2+), Ca(2+)) and six alkylamines (dimethylamine (DMAH(+)), trimethylamine + diethylamine (TMAH(+) + DEAH(+)), propylamine (MPAH(+)), triethylamine (TEAH(+)), ethanolamine (MEOAH(+)) and triethanolamine (TEOAH(+))) were effectively separated and determined, and the relative standard derivations (RSDs) of objective cations were all less than 1% for retention time and 3.1% for peak area (n = 9), respectively. The linearity was excellent for each cation (R(2) > 0.993) except for NH(4)(+) and TEOAH(+) showing a non-linear response (R(2) > 0.998 for theoretical non-linear fitting), and the detection limit of these cations were 0.03-1.19 ng. The proposed method was successfully used in the determination of both alkylamines and inorganic cations in ambient particulate matters and gaseous alkylamines in ceiling duct exhaust. The annual average concentrations of DMAH(+), TMAH(+) + DEAH(+) and TEAH(+) were 15.56, 4.35 and 16.00 ng m(-3) in PM(2.5) over Shanghai in 2013. The concentrations of gaseous DMA and TMA + DEA in ceiling duct exhaust reached a maximum of 940.0 and 112.7 mug m(-3), and were positively correlated with the human activity intensity, suggesting that human excreta emissions was a potential important source of atmospheric alkylamines in urban area of Shanghai. CI - Copyright (c) 2018 Elsevier B.V. All rights reserved. FAU - Zhou, Shengqian AU - Zhou S AD - Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China. FAU - Lin, Jing AU - Lin J AD - Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China; Fuzhou Research Academy of Environmental Science, Fuzhou, China. FAU - Qin, Xiaofei AU - Qin X AD - Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China. FAU - Chen, Ying AU - Chen Y AD - Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China. FAU - Deng, Congrui AU - Deng C AD - Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China. Electronic address: congruideng@fudan.edu.cn. LA - eng PT - Journal Article DEP - 20180604 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Air Pollutants) RN - 0 (Cations) RN - 0 (Crown Ethers) RN - 0 (Ethylamines) RN - 0 (Gases) RN - 0 (Methylamines) RN - 0 (Particulate Matter) RN - 63J177NC5B (18-crown-6) RN - LHH7G8O305 (trimethylamine) RN - VOU728O6AY (triethylamine) SB - IM MH - Air Pollutants/analysis MH - Cations/chemistry MH - Chromatography, Ion Exchange/*methods MH - Crown Ethers/*chemistry MH - Ethylamines/*analysis MH - Gases/chemistry MH - Humans MH - Methylamines/*analysis MH - Particulate Matter/analysis OTO - NOTNLM OT - 18-crown-6 OT - Atmospheric alkylamines OT - Complexation OT - Ion chromatography OT - Mobile phase EDAT- 2018/06/11 06:00 MHDA- 2018/07/06 06:00 CRDT- 2018/06/11 06:00 PHST- 2018/03/06 00:00 [received] PHST- 2018/05/22 00:00 [revised] PHST- 2018/05/31 00:00 [accepted] PHST- 2018/06/11 06:00 [pubmed] PHST- 2018/07/06 06:00 [medline] PHST- 2018/06/11 06:00 [entrez] AID - S0021-9673(18)30725-8 [pii] AID - 10.1016/j.chroma.2018.05.074 [doi] PST - ppublish SO - J Chromatogr A. 2018 Aug 17;1563:154-161. doi: 10.1016/j.chroma.2018.05.074. Epub 2018 Jun 4.