TY - JOUR ID - 10958 TI - Comparative Gas Chromatography of Halides Using Different Substituted Phenylboronic Acids as Derivatizing Reagents JO - Iranian Journal of Chemistry and Chemical Engineering JA - IJCCE LA - en SN - 1021-9986 AU - Sarafraz Yazdi, Ali AU - Stephen, W.I. AD - Department of Chemisty, Faculty of sciences, Ferdowsi University Mashhad, Mashhad, I.R. IRAN AD - Department of Chemistry, Birmingham University, Birmingham, B15, U.K. Y1 - 1992 PY - 1992 VL - 11 IS - 2 SP - 29 EP - 34 KW - Halides KW - Substituted phenylboronic acid KW - Gas-Liquid-Chromatography KW - Derivatization DO - 10.30492/ijcce.1992.10958 N2 - The GC of halides (chloride, bromide and iodide) using phenylboronic acid (PBA), 4-bromophenylboronic acid (BPBA), 3, 5 bis (trifluoromethyl) phenylboronic acid (FPBA) and 2,4- dichlorophenylboronic acid (CPBA) as derivatizing reagents are compared. The reactions are carried out in the presence of mercuric salts. The detection systems used are FID and ECD. The thermal analysis of the compounds are studied prior to GC to get an indication of the likely operating temperatures. The unsubtituted phenylboronic acid show better volatility and FID response, but substituted phenylboronic acids exhibit better responses using ECD system. Finally FPBA is examined for the possible use in quantitative determination of chloride, bromide and iodide using solvent extraction procedure and ECD detection system. Detection limits for chloride, bromide and iodide are reported in the range of 0.29-0.35 pg. UR - https://ijcce.ac.ir/article_10958.html L1 - ER -