{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T16:25:45Z","timestamp":1777652745104,"version":"3.51.4"},"reference-count":16,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2015,10,12]],"date-time":"2015-10-12T00:00:00Z","timestamp":1444608000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In this study we developed a low cost sensor for measuring the concentration  of hydrogen peroxide (H2O2) in liquids utilizing a spectrometric method. The sensor  was tested using various concentrations of a peroxidase enzyme immobilized on a glass substrate. H2O2 can be catalyzed by peroxidase and converted into water and oxygen. The reagent 4-amino-phenazone takes up oxygen together with phenol to form a colored product that has absorption peaks at 510 nm and 450 nm. The transmission intensity is strongly related to the hydrogen peroxide concentration, so can be used for quantitative analysis. The measurement range for hydrogen peroxide is from 5 \u00d7 10\u22125% to 1 \u00d7 10\u22123% (0.5 ppm to 10 ppm) and the results show high linearity. This device can achieve a sensitivity and resolution  of 41,400 (photon count\/%) and 3.49 \u00d7 10\u22125% (0.35 ppm), respectively. The response  time of the sensor is less than 3 min and the sensor can be reused for 10 applications with similar performance.<\/jats:p>","DOI":"10.3390\/s151025716","type":"journal-article","created":{"date-parts":[[2015,10,14]],"date-time":"2015-10-14T02:36:30Z","timestamp":1444790190000},"page":"25716-25729","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":47,"title":["A Spectrometric Method for Hydrogen Peroxide Concentration Measurement with a Reusable and Cost-Efficient Sensor"],"prefix":"10.3390","volume":"15","author":[{"given":"Cheng-Chih","family":"Hsu","sequence":"first","affiliation":[{"name":"Department of Photonics Engineering, Yuan Ze University, 135 Yuan-Tung Road, Chung-Li 32003, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuan-Rong","family":"Lo","sequence":"additional","affiliation":[{"name":"Department of Photonics Engineering, Yuan Ze University, 135 Yuan-Tung Road, Chung-Li 32003, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yu-Chian","family":"Lin","sequence":"additional","affiliation":[{"name":"Department of Photonics Engineering, Yuan Ze University, 135 Yuan-Tung Road, Chung-Li 32003, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yi-Cen","family":"Shi","sequence":"additional","affiliation":[{"name":"Department of Photonics Engineering, Yuan Ze University, 135 Yuan-Tung Road, Chung-Li 32003, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pang-Lung","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Photonics Engineering, Yuan Ze University, 135 Yuan-Tung Road, Chung-Li 32003, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2015,10,12]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"323","DOI":"10.1016\/S0168-9452(00)00396-4","article-title":"Abscisic acid induced changes in cell wall peroxidase activity and hydrogen peroxide level in roots of rice seedlings","volume":"160","author":"Lin","year":"2001","journal-title":"Plant Sci."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"117","DOI":"10.1016\/S0143-7208(01)00014-6","article-title":"Decolourization of textile industry wastewater by the photocatalytic degradation process","volume":"49","author":"Hachem","year":"2001","journal-title":"Dyes Pigmet."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"161","DOI":"10.1016\/j.cej.2006.03.022","article-title":"Chemical oxidation with hydrogen peroxide for domestic wastewater treatment","volume":"119","author":"Ksibi","year":"2006","journal-title":"Chem. 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[1st ed.]."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/15\/10\/25716\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T20:49:54Z","timestamp":1760215794000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/15\/10\/25716"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2015,10,12]]},"references-count":16,"journal-issue":{"issue":"10","published-online":{"date-parts":[[2015,10]]}},"alternative-id":["s151025716"],"URL":"https:\/\/doi.org\/10.3390\/s151025716","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2015,10,12]]}}}