Improved Sensitivity and Characterization of High-Speed Ion Chromatography of Inorganic Anions

Citations Over TimeTop 10% of 2003 papers

Abstract

In this work, a reversed-phase monolithic column was permanently coated with didodecyldimethylammonium bromide (DDAB) to perform ultrafast separations of iodate, chloride, nitrite, bromide, nitrate, phosphate, and sulfate in as little as 30 s. Separations were performed using 6 mM o-cyanophenol (pH 7.0) at flow rates up to 10 ml/min and suppressed conductivity detection. Detection limits in the parts-per-billion range were observed for all anions studied (e.g., ranging from 30 ppb for phosphate to 4 ppb for sulfate). The reproducibility was 0.7 and 0.4% RSD for retention time and peak area, respectively. Coated columns were stable for up to 12 h of continuous use at 5 mL/min (i.e., 1-min separations).

Related Papers

• → Simultaneous spectrophotometric determination of iodate and bromate in water samples by the method of mean centering of ratio kinetic profiles(2005)38 cited
• → A novel detection of nitrite, iodate and bromate based on a luminescent polyoxometalate(2012)22 cited
• → Simultaneous kinetic-spectrophotometric determination of periodate–bromate and iodate–bromate mixtures using the H-point standard addition method(2003)27 cited
• → Some observations on the use of 2-oximinodimedone dithiosemicarbazone as a spectrophotometric reagent for the determination of lodate and bromate(1988)5 cited
• Analysis on the content of Bromate in flourmade samples by ion chromatography with the suppressed conductivity detector(2010)