caa a22 4500 463220668 CHVBK 20180405153211.0 cr unu---uuuuu 170326e20071101xx s 000 0 eng 10.1134/S1061934807110093 doi (NATIONALLICENCE)springer-10.1134/S1061934807110093 Mitrakas M. Laboratory of Analytical Chemistry, Chemical Engineering Department, School of Engineering, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece aut Bromate determination in water using chlorpromazine after correction of chlorinating agents and humic substances interference [Elektronische Daten] [M. Mitrakas] The presence of soluble humic substances and chlorinating agents interfered positively with the spectrophotometric determination of bromate (BrO 3 − ) using chlorpromazine. Removal of the soluble humic substances through their precipitation by a basic lead acetate (15.9 g/L Pb(CH3COO)2 · 3H2O-4.7 g/L PbO) solution corrected their interference effectively. In addition, the use of NaHSO3 at pH 5.1 ± 0.2 eliminated the interference of ClO 2 − , Cl2-OCl−, and Cl2-NH2Cl, when present in concentrations of up to 1.5, 3.5, and 3.5 mg/L, respectively. Thus, the spectrophometric method was rendered suitable for the direct bromate determination in natural, chlorinated, and ozonated waters, since the application to such samples resulted in the accurate and precise determination of bromate. The method's detection limit was estimated as 1.6 μg BrO 3 − /L and the linear range of the calibration curve was extended up to 700 μg BrO 3 − /L. The method also gave results comparable to those obtained by the well-established ion chromatographic method and had the additional advantage of being simple, rapid, low cost, and suitable for brackish water. Pleiades Publishing, Ltd., 2007 Journal of Analytical Chemistry Nauka/Interperiodica 62/11(2007-11-01), 1055-1063 1061-9348 62:11<1055 2007 62 10809 https://doi.org/10.1134/S1061934807110093 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S1061934807110093 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Mitrakas M. Laboratory of Analytical Chemistry, Chemical Engineering Department, School of Engineering, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece aut NATIONALLICENCE 773 0- Journal of Analytical Chemistry Nauka/Interperiodica 62/11(2007-11-01), 1055-1063 1061-9348 62:11<1055 2007 62 10809 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer