摘要：
采用抑制电导离子色谱方法，同时测定了工业废水中苯甲酸、对苯二甲酸、对甲基苯甲酸、苯磺酸、对甲基苯磺酸5种芳香酸。工业废水稀释一定倍数后，经0.22 μm的过滤头和RP前处理柱处理后进行离子色谱分析。使用阴离子交换色谱分离，抑制器电导检测模式。5种芳香酸在3~40 mg/L范围内呈良好的线性，检出限低，加标回收率范围合理、操作简单、灵敏度高、重复性好、无污染，应用于工业废水中芳香酸污染物的监测，结果令人满意。
关键词:
工业废水,
芳香酸,
离子色谱法
Abstract:
The method for the simultaneous determination of five kinds of aromatic acids, including benzoic acid, p-phthalic acid, p-toluic acid, benzenesulfonic acid and p-toluenesulfonic acid, in industrial wastewater by suppressed conductivity ion chromatography has been developed.Ion chromatographic analysis is accomplished after the indu-strial wastewater is diluted by certain multiples, and treated via a 0.22 μm nylon filter tip, and RP OnGuard column.The anion-exchange chromatography separation, and suppressor conductivity detecting mode are used.The five kinds of aromatic acids in the range of 3-40 mg/L show good linearity, low detection limit, reasonable range of tagged recovery rate, simple operation, high sensibility, good repeatability and no pollution.The results show that its applica-tion to the detection of aromatic acid pollutants in industrial wastewater are satisfactory.
Key words:
industrial wastewater,
aromatic acids,
ion chromatography
中图分类号:
绍嵘, 刘建云, 阮胜利, 张雅婷, 周晓益, 潘梦旭. 离子色谱法同时检测工业废水中的多种芳香酸[J]. 工业水处理, 2017, 37(1): 89-91.
Luan Shaorong, Liu Jianyun, Ruan Shengli, Zhang Yating, Zhou Xiaoyi, Pan Mengxu. Simultaneous determination of aromatic acids in industrial wastewater by suppressed ion chromatography[J]. INDUSTRIAL WATER TREATMENT, 2017, 37(1): 89-91.