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An ion chromatography(IC) system coupled with on-line column-switching technique was used to determine anions ofμg/g levels in organic chemicals of analytical reagent grade.A novel polystyrene-divinylbenzene-carbon nanotube(PS-DVB-CNT) stationary phase was utilized for matrix elimination.A calibration study was conducted by preparing and analyzing eight concentrations(between 10 and 5000μg/L) of eight standards in deionized water.The linearity was between 0.9978 and 1.And the detection limits ranged from 1.54μg/L to 10.02μg/L.A spiking study was performed on two representative organic chemicals.The recoveries were between 84.3%and 119.6%.
An ion chromatography (IC) system coupled with on-line column-switching technique was used to determine anions of μg / g levels in organic chemicals of analytical reagent grade. A novel polystyrene-divinylbenzene-carbon nanotube was utilized for matrix elimination. A calibration study was conducted by preparing and analyzing eight concentrations (between 10 and 5000 μg / L) of eight standards in deionized water. linearity was between 0.9978 and 1.And the detection limits ranged from 1.54 μg / L to 10.02 μg / LA spiking study was performed on two representative organic chemicals. The recoveries were between 84.3% and 119.6%.