{"title":"Development of a fully automated inorganic nitrogen analyzer for continuous, unattended monitoring of water quality","authors":"Bianting Sun, Richard John, Huijun Zhao","doi":"10.1002/1098-2728(2000)12:6<312::AID-LRA7>3.0.CO;2-H","DOIUrl":null,"url":null,"abstract":"<p>A fully automated spectrophotometric analyzer for continuous, unattended determination of inorganic nitrogen (nitrite, nitrate, and ammonia) was developed. The analysis involves online UV photo-induced conversion of nitrate to nitrite and chemical oxidation of ammonia to nitrite. In both cases, nitrite was then subsequently determined by spectrophotometry using the sulfanilamide and N-1-naphthyl-ethylenediamine color reagents. Experimental conditions investigated to optimize the determination of nitrate and ammonia are presented. The linear ranges of the methods for nitrate and ammonia are 0.01–14 ppm and 0.01–5 ppm, respectively. The proposed method is simple, low cost, and sensitive. The analyzer was operated automatically and unattended for a period of 30 days. © 2000 John Wiley & Sons, Inc. Lab Robotics and Automation 12:312–316, 2000</p>","PeriodicalId":100863,"journal":{"name":"Laboratory Robotics and Automation","volume":"12 6","pages":"312-316"},"PeriodicalIF":0.0000,"publicationDate":"2000-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/1098-2728(2000)12:6<312::AID-LRA7>3.0.CO;2-H","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Laboratory Robotics and Automation","FirstCategoryId":"1085","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/1098-2728%282000%2912%3A6%3C312%3A%3AAID-LRA7%3E3.0.CO%3B2-H","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
A fully automated spectrophotometric analyzer for continuous, unattended determination of inorganic nitrogen (nitrite, nitrate, and ammonia) was developed. The analysis involves online UV photo-induced conversion of nitrate to nitrite and chemical oxidation of ammonia to nitrite. In both cases, nitrite was then subsequently determined by spectrophotometry using the sulfanilamide and N-1-naphthyl-ethylenediamine color reagents. Experimental conditions investigated to optimize the determination of nitrate and ammonia are presented. The linear ranges of the methods for nitrate and ammonia are 0.01–14 ppm and 0.01–5 ppm, respectively. The proposed method is simple, low cost, and sensitive. The analyzer was operated automatically and unattended for a period of 30 days. © 2000 John Wiley & Sons, Inc. Lab Robotics and Automation 12:312–316, 2000
开发全自动无机氮分析仪，用于连续、无人值守的水质监测
开发了一种全自动分光光度分析仪，用于连续、无人值守地测定无机氮(亚硝酸盐、硝酸盐和氨)。分析包括在线紫外光诱导的硝酸盐转化为亚硝酸盐和氨化学氧化为亚硝酸盐。在这两种情况下，亚硝酸盐随后用磺胺和n -1-萘-乙二胺显色试剂分光光度法测定。研究了测定硝酸盐和氨的最佳实验条件。硝态氮和氨的线性范围分别为0.01 ~ 14ppm和0.01 ~ 5ppm。该方法简单、成本低、灵敏度高。分析仪在无人值守的情况下自动运行30天。©2000 John Wiley &儿子,Inc。机械工程学报，2009 (12):332 - 316
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