{"title":"Smartphone-Based Photometric Detection of Nitrite Level in Water","authors":"Priyanka Das, Pabita Nath","doi":"10.1109/WRAP54064.2022.9758200","DOIUrl":null,"url":null,"abstract":"This work demonstrates an affordable, field-portable smartphone-based sensing tool for estimation of nitrite in water medium. The sensing principle is based on the well-known Beer-Lambert principle where transmitted modulated signal from the sample is captured by the ambient light sensor (ALS) of the phone and correlates its signal intensities with the concentration of nitrite present in the samples. The results obtained with the smartphone sensor is found to be agreed well with the laboratory-grade spectrophotometer.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2022 Workshop on Recent Advances in Photonics (WRAP)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/WRAP54064.2022.9758200","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
This work demonstrates an affordable, field-portable smartphone-based sensing tool for estimation of nitrite in water medium. The sensing principle is based on the well-known Beer-Lambert principle where transmitted modulated signal from the sample is captured by the ambient light sensor (ALS) of the phone and correlates its signal intensities with the concentration of nitrite present in the samples. The results obtained with the smartphone sensor is found to be agreed well with the laboratory-grade spectrophotometer.
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