Low-Cost Graphite-Based Free Chlorine Sensor
Pencil lead was used to fabricate a graphite-based electrode for sensing applications. Its surface was electrochemically modified using ammonium carbamate to make it suitable for sensing free chlorine in water samples. Chlorine is widely used as a disinfectant in the water industry, and the residual...
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| Veröffentlicht in: | Analytical chemistry (Washington) 2015-11, Vol.87 (21), p.10734-10737 |
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| creator | Pan, Si Deen, M. Jamal Ghosh, Raja |
| description | Pencil lead was used to fabricate a graphite-based electrode for sensing applications. Its surface was electrochemically modified using ammonium carbamate to make it suitable for sensing free chlorine in water samples. Chlorine is widely used as a disinfectant in the water industry, and the residual free chlorine concentration in water distributed to the consumers must be lower than that stipulated by regulatory bodies. The graphite-based amperometric sensor gave a selective and linear response to free chlorine in the relevant concentration range and no response to commonly interfering ions. It was evaluated further for storage stability, response time, and hysteresis. This sensor is being proposed as a low-cost device for determining free chlorine in water samples. Its ease-of-use, limitations, and feasibility for mass-production and application is discussed. |
| doi_str_mv | 10.1021/acs.analchem.5b03164 |
| format | Article |
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Its ease-of-use, limitations, and feasibility for mass-production and application is discussed.</description><identifier>ISSN: 0003-2700</identifier><identifier>EISSN: 1520-6882</identifier><identifier>DOI: 10.1021/acs.analchem.5b03164</identifier><identifier>PMID: 26457368</identifier><identifier>CODEN: ANCHAM</identifier><language>eng</language><publisher>United States: American Chemical Society</publisher><subject>Biosensors ; Chlorine ; Chlorine - analysis ; Chlorine - chemistry ; Detection ; Disinfection & disinfectants ; Electrical measurements ; Electrochemical Techniques - economics ; Electrochemical Techniques - instrumentation ; Electrodes ; Feasibility ; Graphite ; Graphite - chemistry ; Pencils ; Sensors ; Storage stability ; Water utilities</subject><ispartof>Analytical chemistry (Washington), 2015-11, Vol.87 (21), p.10734-10737</ispartof><rights>Copyright © 2015 American Chemical Society</rights><rights>Copyright American Chemical Society Nov 3, 2015</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a512t-76ed79ef73d999cd9756df30e38f729a5115dac249e2f7e34bac8ce53e4de5473</citedby><cites>FETCH-LOGICAL-a512t-76ed79ef73d999cd9756df30e38f729a5115dac249e2f7e34bac8ce53e4de5473</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/acs.analchem.5b03164$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/acs.analchem.5b03164$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,776,780,2752,27053,27901,27902,56713,56763</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26457368$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Pan, Si</creatorcontrib><creatorcontrib>Deen, M. Jamal</creatorcontrib><creatorcontrib>Ghosh, Raja</creatorcontrib><title>Low-Cost Graphite-Based Free Chlorine Sensor</title><title>Analytical chemistry (Washington)</title><addtitle>Anal. Chem</addtitle><description>Pencil lead was used to fabricate a graphite-based electrode for sensing applications. Its surface was electrochemically modified using ammonium carbamate to make it suitable for sensing free chlorine in water samples. Chlorine is widely used as a disinfectant in the water industry, and the residual free chlorine concentration in water distributed to the consumers must be lower than that stipulated by regulatory bodies. The graphite-based amperometric sensor gave a selective and linear response to free chlorine in the relevant concentration range and no response to commonly interfering ions. It was evaluated further for storage stability, response time, and hysteresis. This sensor is being proposed as a low-cost device for determining free chlorine in water samples. Its ease-of-use, limitations, and feasibility for mass-production and application is discussed.</description><subject>Biosensors</subject><subject>Chlorine</subject><subject>Chlorine - analysis</subject><subject>Chlorine - chemistry</subject><subject>Detection</subject><subject>Disinfection & disinfectants</subject><subject>Electrical measurements</subject><subject>Electrochemical Techniques - economics</subject><subject>Electrochemical Techniques - instrumentation</subject><subject>Electrodes</subject><subject>Feasibility</subject><subject>Graphite</subject><subject>Graphite - chemistry</subject><subject>Pencils</subject><subject>Sensors</subject><subject>Storage stability</subject><subject>Water utilities</subject><issn>0003-2700</issn><issn>1520-6882</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkEtLw0AUhQdRbK3-A5GAGxem3nknSw22CgUX6nqYJjc0JY86kyL-e6e2VXAhru7mO-dwP0LOKYwpMHpjcz-2ra3zBTZjOQdOlTggQyoZxCpJ2CEZAgCPmQYYkBPvlwCUAlXHZMCUkJqrZEiuZ917nHW-j6bOrhZVj_Gd9VhEE4cYZYu6c1WL0TO2vnOn5Ki0tcez3R2R18n9S_YQz56mj9ntLLaSsj7WCgudYql5kaZpXqRaqqLkgDwpNUsDRGVhcyZSZKVGLuY2T3KUHEWBUmg-Ilfb3pXr3tboe9NUPse6ti12a2-oThSj4Tn2D5QDMAAlA3r5C112axcMflEsEVoyGiixpXLXee-wNCtXNdZ9GApmI94E8WYv3uzEh9jFrnw9b7D4Du1NBwC2wCb-M_xX5yerX48y</recordid><startdate>20151103</startdate><enddate>20151103</enddate><creator>Pan, Si</creator><creator>Deen, M. 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| source | ACS Publications; MEDLINE |
| subjects | Biosensors Chlorine Chlorine - analysis Chlorine - chemistry Detection Disinfection & disinfectants Electrical measurements Electrochemical Techniques - economics Electrochemical Techniques - instrumentation Electrodes Feasibility Graphite Graphite - chemistry Pencils Sensors Storage stability Water utilities |
| title | Low-Cost Graphite-Based Free Chlorine Sensor |
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