基于Fenton试剂和微型光谱仪实现水质COD和总磷的在线测定（英文）

发布时间：2018-01-18 06:15

本文关键词：基于Fenton试剂和微型光谱仪实现水质COD和总磷的在线测定（英文）　出处：《光谱学与光谱分析》2017年05期 　论文类型：期刊论文

【摘要】：基于Fenton试剂和微型光谱仪,实现了水质化学需氧量(chemical oxygen demand,COD)和总磷(total phosphorus,TP)的在线测定。该系统结合超声辅助,基于Fenton试剂实现了常温常压下水中有机化合物和有机磷化合物的在线消解。系统基于微型光谱仪实现了可见光光谱探测并采用多波长分光光度法分析光谱数据。结果表明,系统具有测定时间短,低功耗,结构简单和二次污染少的优点。同时,系统测定相对误差小于10%,COD和总磷检测限分别为2和0.008mg·L~(-1),灵敏度分别为0.021 3和0.452 6,标准偏差分别为5.6%(15.0mg·L~(-1) COD标样)和5.8%(0.010mg·L~(-1)总磷标样)。实际水样测定结果与国家标准分析方法比较无显著差异。
[Abstract]:Chemical oxygen demand of water quality is realized based on Fenton reagent and micro spectrometer. On-line determination of total phosphorus and total phosphorus. the system is assisted by ultrasound. The on-line digestion of organic compounds and organophosphorus compounds in water at room temperature and atmospheric pressure was realized based on Fenton reagent. The visible spectrum detection was realized based on micro spectrometer and the multiwavelength spectrophotometry was used to analyze the system. Spectral data. Results show. The system has the advantages of short measuring time, low power consumption, simple structure and less secondary pollution. At the same time, the relative error of the system is less than 10%. The detection limits of COD and TP were 2 and 0.008 mg 路L ~ (-1), and the sensitivity were 0.021 3 and 0.452 6, respectively. The standard deviations were 5.6mg 路L ~ (-1) COD and 5.8mg 路L ~ (-1) ~ (-1) total phosphorus, respectively. There was no significant difference between the actual water sample and the national standard analysis method.
【作者单位】：新型微纳器件与系统技术国防重点学科实验室;重庆大学微系统中心;重庆理工大学光电信息学院;
【基金】：the instrument and equipment development project of National Nature Science Foundation of China(61327002)
【分类号】：O657.3;X832
【正文快照】： Introduction　　Water　quality　monitoring　is　one　of　key　technologies　in　fu-ture　water　resources　management　systems[1-2].Comparedwith　other　water　quality　monitoring　parameters,COD　and　TPare　more　important　for　they　are　main　pollut

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