Migration of Organic Acids in Atmospheric Wet Deposition in Hangzhou Monitored by Ion Chromatography

Jin, X.; Min, F.; Haibing, J.; Nesterenko, P.N.; Mingli, Y.; Meilan, C.

Авторы: Jin Xiaolin, Min Fang, Haibing Ji, Nesterenko P.N., Mingli Ye, Meilan Chen
Журнал: Huan jing hua xue = Environmental chemistry
Том: 39
Номер: 8
Год издания: 2020
Издательство: Zhongguo ke xue yuan huan jing hua xue yan jiu suo
Местоположение издательства: [Peking], China
Первая страница: 2287
Последняя страница: 2295
DOI: 10.7524/j.issn.0254-6108.2019053101
Аннотация: An ion chromatographic (IC) method was developed for simultaneous determination of 7 organic acids (acetic, formic, methane sulfonic, pyruvic, succinic, malonic, oxalic) and 9 inorganic anions (fluoride, chloride, bromide, nitrite, nitrate, sulfite, sulfate, thiosulfate, phosphate) in atmospheric particulate matter including rainwater, snow water and surface water by ion chromatography with suppressed conductivity. The separation was performed by using was performed IonPac AG11-HC (4 mm×50 mm) guard column connected in series with IonPac AS11-HC (4 mm×250 mm) analytical column and with ASRS 500 (4 mm) suppressor. KOH as eluent was performed with the eluent flow rate of 1.0 mL·min-1 at the column temperature of 40℃. The reproducibility of the method expressed as relative standard derivation (RSD) was between 2.12% and 4.68%, the regression coefficients of the calibration plots (r2) were 0.9991-0.9998, the recoveries ranged between 97.1% and 115.2%, and the limits of detection were varied from 4.36×10-4 and 1.96×10-2 μg·mL-1. The method was applied to analysis of atmospheric particulate matter including precipitation, snowfall and surface water samples. The result showed that formic, acetic and oxalic acids were mostly presented in atmospheric particulates in Hangzhou, which were due to automobile exhausts and external migration of atmospheric matters. The presence of organic acids in rain and snow waters were ultimately originated from the wet deposition of atmospheric particulate matter. The surface water had different content of organic acids and inorganic anions due to differences in river geology and other conditions.
Добавил в систему: Нестеренко Павел Николаевич

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Migration of Organic Acids in Atmospheric Wet Deposition in Hangzhou Monitored by Ion Chromatographyстатья

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