PMID- 38101303 OWN - NLM STAT- MEDLINE DCOM- 20240108 LR - 20240108 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1713 DP - 2024 Jan 4 TI - Determination of organic and inorganic Cl in gaseous ethylene based on gas-liquid equal mass response followed by automatic quick furnace-ion chromatography. PG - 464559 LID - S0021-9673(23)00784-7 [pii] LID - 10.1016/j.chroma.2023.464559 [doi] AB - Herein, a practical method for the determination of organic and inorganic Cl in gaseous ethylene by liquid standard samples was established; and then, the effects of various speciation and matrices on results were investigated followed by automatic quick furnace-ion chromatography (AQF-IC) analysis. From the evaluation of speciation and matrices, unified equation was explored and the method for accurately determining trace HCl with strong adsorption was also developed. First, summarize regularity that the light oil liquid standards themselves conformed to equal Cl mass response by AQF-IC (R(2)=0.99993). Then, the actual Cl mass in standard gas at 4 levels with different speciation and matrices were calculated by the same regularity based on the assumption of not affected by speciation or matrix change. The gas mass was accurately calculated based on Van der Waals' Equation. As a result, combined with the theoretical Cl mass calculated by equation, the recoveries of the organic and inorganic Cl were in the range of 93.0%-101.4% [2.0 micromol/mol of CH(3)Cl/(N(2)+ethylene)], 93.4%-104.9% (10.1 micromol/mol of CH(3)Cl/N(2)), 101.6%-111.2% (20.2 micromol/mol of CH(3)Cl/ethylene) and 95.3%-101.0% (11.0 mg/m(3) of HCl/N(2)), respectively, indicating the successful verification of above assumption rather than applying more exploration to rebuild relationships between different systems. As proof of principle and for more verification, system of CH(2)Cl(2)/He gas standard sample was prepared to explore the quantitative accuracy in more speciation with recoveries in the range of 91.3%-98.5%. In addition, the detection limit of Cl content based on S/N = 3 for ethylene was 0.06 mg/kg. Intra-day and inter-day relative standard devations (RSDs) were in the range of 9.3%-12.0% (1.0 mg/kg). Finally, the developed method based on gas-liquid equal mass response was successfully applied in the actual samples of light olefins such as ethylene and propylene. CI - Copyright (c) 2023 Elsevier B.V. All rights reserved. FAU - Wang, Xiaoyu AU - Wang X AD - Sinopec Shanghai Research Institute of Petrochemical Technology Co., Ltd, China. Electronic address: wangxy.sshy@sinopec.com. FAU - Li, Jiwen AU - Li J AD - Sinopec Shanghai Research Institute of Petrochemical Technology Co., Ltd, China. FAU - Jiang, Liyan AU - Jiang L AD - Sinopec Shanghai Research Institute of Petrochemical Technology Co., Ltd, China. FAU - Wang, Chuan AU - Wang C AD - Sinopec Shanghai Research Institute of Petrochemical Technology Co., Ltd, China. LA - eng PT - Journal Article DEP - 20231209 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Gases) RN - 059QF0KO0R (Water) RN - 0 (Ions) RN - 0 (Ethylenes) SB - IM MH - *Gases MH - *Water/chemistry MH - Chromatography MH - Ions MH - Ethylenes OTO - NOTNLM OT - Cl content OT - Ethylene OT - Gas-liquid equal mass response OT - Matrices OT - Speciation COIS- Declaration of Competing Interest The authors have no competing interests to declare. EDAT- 2023/12/16 11:43 MHDA- 2024/01/08 06:42 CRDT- 2023/12/15 18:18 PHST- 2023/09/11 00:00 [received] PHST- 2023/11/30 00:00 [revised] PHST- 2023/12/03 00:00 [accepted] PHST- 2024/01/08 06:42 [medline] PHST- 2023/12/16 11:43 [pubmed] PHST- 2023/12/15 18:18 [entrez] AID - S0021-9673(23)00784-7 [pii] AID - 10.1016/j.chroma.2023.464559 [doi] PST - ppublish SO - J Chromatogr A. 2024 Jan 4;1713:464559. doi: 10.1016/j.chroma.2023.464559. Epub 2023 Dec 9.