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中国无机分析化学:2020,10(3):9-13
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氧弹燃烧-离子色谱法测定生活垃圾干燥基中 氯和硫的含量
王树加, 周肇秋, 吴粱鹏,苏秋成
(中国科学院广州能源研究所)
Determination of Cl and S in Dry Basis Waste by means of Oxygen Bomb Combustion and Ion Chromatography
Wang Shu-jia, Zhou Zhao-qiu, WU Liangpeng, Su Qiu-cheng
(Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences)
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投稿时间:2019-10-26    修订日期:2020-03-27
中文摘要: 采用氧弹燃烧法对垃圾样品干燥基进行前处理,用碳酸钠(24mmol/L)和碳酸氢钠(30mmol/L)以及过氧化氢(2.5%)为吸收液,并用离子色谱法对其处理后吸收液中氯离子和硫酸根含量进行测定,最后换算为样品中氯和硫的含量。氯和硫酸根质量浓度分别在1~50mg/L与色谱峰面积呈良好的线性相关,其系数都大于0.999。样品中氯的回收率为96.49%~99.05%,硫酸根的回收率为92.52%~101.3%,测定结果中样品的相对平均标准偏差均小于3%(n=5),并用质控样品对该方法进行了验证,结果表明该方法样品前处理简单,样品损失少,准确度高,适合于垃圾样品中无机元素含量的分析。
中文关键词: 氧弹燃烧  离子色谱  垃圾干燥基    
Abstract:The dry base of waste samples was pretreated by oxygen bomb combustion method, and 24mmol/L Na2CO3, 30mmol/LNaHCO3 and 2.5%H2O2 were used as absorbents, the contents of chlorine and sulfate in the absorbent solution were determined by ion chromatography. At last, the content of chlorine and sulfur in the sample was converted. The mass concentration of chlorine and sulfate showed good linear relationship with ion chromatographic peak area in the range of 1~50 mg/L ,both coefficients were greater than 0.999.The recovery of chlorine in the sample was 96.49% ~ 99.05% and sulfate was 92.52% ~ 101.3%, The determination results of sample average relative standard deviation was less than 3%(n=5).This method was also verified by the quality control samples, the results show that the method of sample preparation is simple, less sample loss, high accuracy, suitable for the waste of the content of inorganic elements in the sample.
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王树加,周肇秋,吴粱鹏,苏秋成.氧弹燃烧-离子色谱法测定生活垃圾干燥基中 氯和硫的含量[J].中国无机分析化学,2020,10(3):9-13.
Wang Shu-jia,Zhou Zhao-qiu,WU Liangpeng,Su Qiu-cheng.Determination of Cl and S in Dry Basis Waste by means of Oxygen Bomb Combustion and Ion Chromatography[J].Chinese Journal of Inorganic Analytical Chemistry,2020,10(3):9-13.

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