Determination of Hydrogen Chloride in Air by Ion-Chromatography / 环境与健康杂志

ABSTRACT

Objective To make a method for determining the hydrogen chloride in the air by ICS 1 000 ion chromatographic system. Methods Hydrogen chloride in the air of workplace was determinated by using ICS-1 000 ion chromatographic with Ion Pac AS14 chromatographic column, a mixed solution of 3.5 mmol/L Na2CO3 and 1.0 mmol/L NaHCO3 were used as eluent and absorbing solution for the air sample. The sampling was performed at a flow rate of 1.2 ml/min. Results The detection limit was 10 ?g/L, RSDs were 1.65%-3.68% and the rates of recovery were 91.8%-99.7%. Conclusion This method was proved to be accurate, simple, rapid and the disturbance of the other anion and chlorine ion can be avoided. It is also considered as an ideal method to determine the hydrogen chloride in the air.