AN43227: Speciation of Bromine Compounds in Ozonated Drinking Water using Ion Chromatography and Inductively Coupled Plasma Mass Spectrometry

Instrument Type: IC

Bromate and brominated organic acids are generated by ozonation of bromide in municipal disinfection processes. The brominated compounds are toxic so compliance monitoring is required. Here four bromine species, including bromate are determined in drinking water using IC coupled to ICP-MS according to a modified U.S. EPA Method 321.8. The ions are separated by IC using a KOH gradient on an IonPac AS19 column. Then the eluting species are detected and quantified by ICP-MS down to ng/L concentrations with negligible spectral interferences using Kinetic Energy Discrimination (KED).

AN1076 : Determination of Monochloroacetic Acid in Carbocisteine.

Instrument Type: IC

Carbocisteine is a mucolytic drug that can interact with the bronchial epithelium to improve the breathing of patients with chronic bronchitis and bronchial asthma. The substrate MCAA, which is cardio- and hematotoxic, is inevitably present in the carbocisteine product. Therefore, the determination of MCAA is important for the quality control of carbocisteine production. The commonly used methods to determine MCAA are gas chromatography (GC) and IC. Compared to the GC method that requires precolumn derivatization, the IC method is sensitive and simple, requiring only a direct injection.