【摘要】 基于气相色谱分离、低温等离子放电与发射光谱技术建立了同时测定 COS 和 CS₂的新方法。以介质阻挡放电（DBD）低温等离子体作为样品的发射光谱（OES）激发源，以 DBD-OES 微型发射光谱系统产生的 384. 94 nm特征光谱为检测信号，以电荷耦合检测器（CCD）采集信号；仪器检出限，COS 2. 7μg·m^-3,CS₂1. 8μg·m^-3；精密度（重复性试验 n = 9）,COS 5. 8%(10μg·m^-3),CS₂6. 9%(2. 5μg·m^-3)；环境大气加标回收率 84. 0%～92. 7%。本方法灵敏快速，简便易行，可应用于同时测定 COS 和 CS₂的实验室和应急监测。更多还原

【Abstract】 The determination method of COS and CS₂was established based on gas chromatographic sepa‐ration, low-temperature plasma discharge and emission spectroscopy technology. The low-temperature plasma of dielectric barrier discharge（DBD）was used as excitation source for the optical emission spectroscopy（OES）of analytical sample. The characteristic spectrum of 384. 94 nm generated by DBD-OES is used as the detection signal,and the signal was collected by charge coupled detector（CCD）. The detection limit of the in‐strument is 2. 7μg·m³,1. 8μg·m³for COS and CS_2,respectively. The precision（repeatability test n = 9）is5. 8% for COS as the concentration of 10μg·m³,and 6. 9% for CS₂as the concentration of 2. 5μg·m³. The standard recovery rate of environmental water samples is 84. 0%—92. 7%. The method can be applied to trace monitoring of COS and CS₂simultaneously for emergency and laboratory analysis.更多还原