连续流动注射法与亚甲蓝分光光度法测定水中阴离子表面活性剂的比较

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英文篇名：Comparison Between Continuous flow Injection and Methylene Blue Spectrophotometry for Determination of Anionic Surfactants in Water 作者：张烜宇 ; 缪柠璐 ; 马媛媛 英文作者：ZhangXuanyu;Jiangsu Guochuang Testing Technology Co.Ltd; 关键词：水和废水 ; 阴离子表面活性剂 ; 连续流动注射法 ; 亚甲蓝分光光度法 英文关键词：Water and wastewater;;Anionic surfactant;;Continuous flow injection method;;Methylene blue spectrophotometry 中文刊名：黑龙江环境通报 英文刊名：Heilongjiang Environmental Journal 机构：江苏国创检测技术有限公司; 出版日期：2019-06-15 出版单位：黑龙江环境通报 年：2019 期：02 语种：中文; 页：25-28 页数：4 CN：23-1398/X ISSN：1674-263X 分类号：X832

摘要

用连续流动注射法与亚甲蓝分光光度法测定水和废水中阴离子表面活性剂进行了测定,并对两种方法的测定值进行了比较,结果显示连续流动注射法和亚甲蓝分光光度法都有很好的准确度和精密度,分析一个样品需要3min,连续流动注射法的适用范围比亚甲蓝分光光度法宽,所需时间短但连续流动注射成本较高,在使用时需按仪器使用规程严格操作、清洗、维护,同时需严格控制实验室温湿度条件,否则对实验结果有较大影响。亚甲蓝分光光度法所分光光度计,成本小,且容易保养,维修费用不高。
        The determination of anionic surfactants in water and wastewater by continuous flow injection method and methylene blue spectrophotometry were studied. The results show that both continuous flow injection and methylene blue spectrophotometry had good accuracy and precision. It took 3 minutes to analyze a sample.The application scope of continuous flow injection method was broader than methylene blue spectrophotometry.The time required of continuous flow injection was shorter,but the cost was higher. It is necessary to operate,clean and maintain the instrument strictly in accordance with the operating rules of the instrument. At the same time,temperature and humidity conditions in the laboratory should be strictly controlled,otherwise there is a greater impact on the experimental results. Methylene blue spectrophotometry has the advantages of low cost,easy maintenance and low maintenance cost.

引文

[1]水和废水监测分析方法.第四版(增补版).北京:中国环境出版社,2002. 694-697.
    [2]水质阴离子表面活性剂的测定亚甲蓝分光光度法GB/T 7494-1987.
    [3]水的质量亚甲蓝活性物质指数的测定用连续流动分析法ISO 16265-2009.