目的建立利用电感耦合等离子体发射光谱仪(ICP-OES)检测矿泉水中氯的分析方法。方法样品经0.22μm水系膜过滤处理后,分别选择谱线858.597 nm和894.800 nm作为检测波长,用电感耦合等离子体发射光谱仪(ICP-OES)进行检测,同时与国家标准推荐的离子色谱法的测定值进行比较。结果选择Cl 858.597 nm和Cl894.800 nm为分析谱线,当标准系列溶液的浓度为5μg/ml~50μg/ml时,线性方程分别为y=134.87x+33.575、y=100.36x-87.418,相关系数(r)分别为0.9999、0.9993,相对标准偏差(RSD)分别为7.42%、3.12%。6份已知氯含量的矿泉水样品的加标回收率为95.69%~105.45%。电感耦合等离子体发射光谱法与国家标准方法 -离子色谱法检测数据吻合度较高,用其测定矿泉水中氯化物的含量具有较高的准确度。结论本法测定水中氯化物与国家标准离子色谱法相比,具有操作简便、分析速度快和准确度较高等优点,可以满足矿泉水中氯化物的检测需求。 Objective To establish an analytical method for the determination of chlorine in mineral water by inductively coupled plasma atomic emission spectrometry (ICP-OES). Methods The samples were filtered through 0.22μm aqueous membrane, and the wavelengths of 858.597 nm and 894.800 nm were selected as the detection wavelength respectively. ICP-OES was used for detection. At the same time, it was compared with the national standard recommended ion chromatography The measured values ​​are compared. Results Cl 858.597 nm and Cl894.800 nm were selected as the analytical lines. The linear equations were y = 134.87x + 33.575 and y = 100.36x-87.418, respectively, when the concentration of standard series solution was 5μg / ml ~ 50μg / ml. The coefficients (r) were 0.9999 and 0.9993, respectively. The relative standard deviations (RSDs) were 7.42% and 3.12% respectively. The recoveries of six mineral water samples with known chlorine contents ranged from 95.69% to 105.45%. Inductively coupled plasma-atomic emission spectrometry and the national standard method - ion chromatography detection of high agreement data, with its determination of chloride content in mineral water with high accuracy. Conclusion Compared with the national standard ion chromatography, the determination of chlorides in water by this method has the advantages of simple operation, high speed of analysis and high accuracy, which can meet the detection demand of chloride in mineral water.