Relevant bibliographies by topics / Peroxid de hidrogen

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Academic literature on the topic 'Peroxid de hidrogen'

Author: Grafiati
Published: 4 June 2025
Last updated: 15 July 2025

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Journal articles on the topic "Peroxid de hidrogen"

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Elena, BUNDUCHI, and GLADCHI Viorica. "EVALUAREA, ÎN BAZA PRODUSELOR DE ACTIVARE ALE OXIGENULUI, A POLUĂRII ŞI A AUTOPURIFICĂRII PRIN PROCESE REDOX A UNOR APE NATURALE." Studia Universitatis Moldaviae Seria Stiințe ale naturii, no. 1(131) (July 21, 2020): 48–52. https://doi.org/10.5281/zenodo.3953838.

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Lucrarea de faţă prezintă rezultate ale supravegherii proceselor de poluare şi autopurificare a unor ape naturale susţinute de H<sub>2</sub>O<sub>2</sub> şi radicalii OH, din perioada anului 2019. Obiectele monitorizate au fost fl. Nistru, afluenţii săi r. Răut şi r. Ichel, la gurile de confluenţă cu fluviul, precum şi două lacuri de acumulare amplasate &icirc;n bazinul hidrografic al fl. Nistru, Ghi&shy;di&shy;ghici şi Dănceni. Valorile atestate indică la existenţa unor cantităţi scăzute sau chiar lipsa peroxidului de hidrogen, precum şi la prezenţa unor concentraţii importante de substanţe c
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Gurbanova, Lala. "Sensors for analysis of hydrogen peroxide." Scientific Bulletin 3 (2020): 169–74. http://dx.doi.org/10.54414/bgif9220.

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The physico-chemical properties of new type catalase sensors, the so-called biomimetic sensors modulating some of catalase biosensor functions were investigated. These sensors have technological advantages ever their biological analogs due to the properties usually attributed to chemical sensors. The development electrochemical system stands in between bio- and chemical sensors.
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Góth, László. "The rasburicase therapy may cause hydrogen peroxide shock." Orvosi Hetilap 149, no. 34 (2008): 1587–90. http://dx.doi.org/10.1556/oh.2008.28422.

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A vér magas húgysav-koncentrációja több megbetegedés (veseelégtelenség, köszvény, tumorlízis- és metabolikus szindrómák) patomechanizmusában játszik szerepet. A tumorlízis-szindróma a tumoros betegeknél spontán vagy kezelés következtében alakul ki, egyik markere a hyperurikaemia. A különböző megbetegedésekben kialakuló hyperurikaemia prevenciójára, illetve terápiájára ma már egyre gyakrabban alkalmazzák a rekombináns húgysavoxidáz- (rasburicas-) terápiát, amely hatékonyan csökkenti a szérumhúgysav-koncentrációt. A terápia során a rasburicas a húgysavat jól oldódó allantoinná alakítja, amely a
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Adam, Mardiana A., and Asti Meizarini. "Sitotoksisitas pemutih gigi berdasarkan konsentrasi bahan." Journal of Dentomaxillofacial Science 9, no. 2 (2010): 116. http://dx.doi.org/10.15562/jdmfs.v9i2.241.

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The aim of this study was to evaluate the cytotoxicity of several tooth whitening material,carbamide peroxide 10%, 15%, 20% and hydrogen peroxide 38% toward BHK-21 cellusing MTT assay. Each well of microplates which used for the test were aliquotted BHK21cell suspension, after that the test solution were added to eight well each group,respectively. The result showed that percentages of the living cell at 10% carbamideperoxide group = 86,73%; 15% = 81,22%; 20% = 81,82%; 38% hidrogen peroksida =64,08%, respectively. Anova test and LSD showed no significant difference between 10%,15%, 20% groups,
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Sudjarwo, Sudjarwo. "MENINGKATNYA HIDROGEN PEROKSIDA PADA VARIAN T16189C mtDNA SEMEN MANUSIA." Berkala Penelitian Hayati 11, no. 2 (2006): 173–77. http://dx.doi.org/10.23869/bphjbr.11.2.200612.

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Mitochondria are a site of cellular respiration through oxidative phosphorylation enzymatic reaction (OXPHOS), which is producing energy in the form of ATP (Adenosine Triphosphate). If abnormalities occur along cellular respiratory chain, ATP will decrease and Reactive Oxygen Species (ROS), will increase, one of which is hydrogen peroxide. ROS is an oxidation whose targets are lipid, protein and DNA, all of which may result in the decrease of spermatozoa motility. The detection of hydrogen peroxide was conducted by means of chemiluminescence using luminol, while the detection T16189C mtDNA var
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Wulandari, Rossa Martha, Ahmad Syauqi, and Majida Ramadhan. "Kemampuan Antioksidan Minuman Sinom dengan Uji Oksidator Peroksida." Jurnal SAINS ALAMI (Known Nature) 8, no. 1 (2025): 10–17. https://doi.org/10.33474/j.sa.v8i1.18813.

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Sinom drink is a traditional Indonesian beverage and has the potential to exhibit antioxidant activity beneficial to human health. Hydrogen peroxide (H2O2), a free radical compound, is a strong oxidiser that is more environmentally friendly than other oxidisers and can be used to test antioxidants in sinom drinks. This study aims to investigate the relationship between time and a decrease in peroxide concentration, as well as to determine the presence of antioxidant substances in sinom drinks. This research method employed experimental methods, with variations in the concentration of hydrogen
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Utami, Riza Dwi, Nur Endah Wahyuningsih, and Budiyono Budiyono. "Kemampuan Hidrogen Peroksida dan Formaldehid dalam Menurunkan Bakteri Pseudomonas aeruginosa pada Limbah Jarum Suntik di RS X Kota Semarang." MEDIA KESEHATAN MASYARAKAT INDONESIA 19, no. 1 (2020): 68–76. http://dx.doi.org/10.14710/mkmi.19.1.68-76.

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Latar belakang:Pada limbah jarum suntik ditemukan jumlah koloni bakteri Pseudomonas aeruginosa sebanyak 1,3x103 dan 2,1x103 CFU/ml. Desinfeksi dengan Hidrogen Peroksida dan Formaldehiddapat digunakanuntuk menurunkan mikroorganisme pathogen. Tujuan dari penelitian ini adalah untuk mengetahui efektifitas desinfektan Hidrogen Peroksida dan Formaldehid dengan variasi dosis dan lama waktu kontak terhadap penurunan jumlah koloni bakteri Pseudomonas aeruginosa pada limbah jarum suntik.Metode:Jenis penelitian ini adalah quasi experimental dengan rancangan non equivalent control group design. Analisis
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Fuadi, Ahmad M., B. Sediawan Wahyudi, and Suryo P. Rochmadi. "Analisis kinetika dengan hidrogen peroksida." Jurnal Teknik Kimia Indonesia 6, no. 3 (2018): 657. http://dx.doi.org/10.5614/jtki.2007.6.3.1.

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As the result of increasing environmental concern, new technologies for bleaching pulps have been developed. Chlorine containing bleaching agents has been replaced by more environmentally benign chemical, such as H2O2. This paper proposes mechanism of alkaline peroxide bleaching in order to get better understanding of the process mechanism. Bleaching mechanism is started by very fast mass transfer, followed by ion HOO' formation. This ion then reacts with lignin which leads to delignification. Before bleaching by H2O2 in alkaline condition, the pulp bleaching is preceded by chelating stage pro
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Ningrum, Siti Gusti. "Deteksi Kandungan Nitrit dan Hidrogen Peroksida dalam Produk Sarang Burung Walet Bersih Asal Indonesia." Jurnal Ilmiah Kedokteran Wijaya Kusuma 10, no. 1 (2021): 20. http://dx.doi.org/10.30742/jikw.v10i1.1078.

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The objective was to investigate nitrite contents of edible bird’s nest product for human consumption. The investigated edible bird’s nest included 19 samples from multiple lots of commercially local products. Nitrite concentrations were determined by spectrophotometry. Nitrite was detected in low concentration (10.752±1.515 ppm). Detection of adulteration which is residue of hydrogen peroxide was conducted in the present study. Hydrogen peroxide was detected by rapid test which specific for hydrogen peroxide. From 19 sample tested, there was no residue of hydrogen peroxide contained in the pr
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Merza, Apriko, Billy Sujatmiko, and Rinda Yulianti. "Perbandingan kekerasan mikro dentin mahkota setelah aplikasi berbagai bahan bleaching intrakoronal." Majalah Kedokteran Gigi Indonesia 2, no. 3 (2016): 128. http://dx.doi.org/10.22146/majkedgiind.11261.

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Comparing microhardness of dentine crown after application of various intracoronal bleaching agents. The aim of this study is to compare microhardness of dentine crown after treatment with intracoronal bleaching agents. The method of this study was an experimental laboratory. Thirty two extracted human mandibular first premolars without caries, sectioned at 2 mm below Cemento-Enamel Junction were divided into four groups and bleaching agents were sealed into the pulp chambers as follows: group A – 45% carbamide peroxide, group B – 35% hydrogen peroxide, group C – sodium perborate mixed aquades
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Dissertations / Theses on the topic "Peroxid de hidrogen"

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Carvalho, Wagner Alves. "Oxidação catalitica de cicloexano com peroxido de hidrogenio em condições ambientais." [s.n.], 1992. http://repositorio.unicamp.br/jspui/handle/REPOSIP/249513.

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Orientador : Ulf Friedrich Schuchardt<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Quimica<br>Made available in DSpace on 2018-07-14T05:28:26Z (GMT). No. of bitstreams: 1 Carvalho_WagnerAlves_M.pdf: 7300129 bytes, checksum: cc38327bb10df45dfff4a1583035d015 (MD5) Previous issue date: 1992<br>Mestrado
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Steffen, Rafael Augusto 1981. "Oxidação Baeyer-Villiger de cicloexanona com peroxido de hidrogenio catalisada por alumina." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/249524.

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Orientador: Ulf Friedrich Schuchardt<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Quimica<br>Made available in DSpace on 2018-08-08T20:51:24Z (GMT). No. of bitstreams: 1 Steffen_RafaelAugusto_M.pdf: 657835 bytes, checksum: efc464baf50683cc652c38220caa0600 (MD5) Previous issue date: 2007<br>Resumo: Testou-se a atividade catalítica de duas aluminas, uma comercial (Fluka) e outra obtida via processo sol-gel, na oxidação Baeyer-Villiger utilizando cicloexanona como substrato e peróxido de hidrogênio como oxidante. Os catalisadores foram caracterizados por análise t
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Oliveira, Barbara de. "Estudo eletroquimico do efeito de surfactantes na eletrogeração de peroxido de hidrogenio." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265249.

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Orientador: Rodnei Bertazzoli<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-08T23:20:02Z (GMT). No. of bitstreams: 1 Oliveira_Barbarade_M.pdf: 510349 bytes, checksum: 9d4dd8bbac953e65a290c93e04ed8aee (MD5) Previous issue date: 2007<br>Resumo: Este trabalho apresenta o estudo do comportamento dos surfactantes catiônicos cloreto de tricaprilmetilamônio (Aliquat® 336) e cloreto de metiltributilamônio (Aliquat® 175) na eletrossíntese de peróxido de hidrogênio. Inicialmente, foram realizados experimentos de m
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GRASSO, ANDREA N. "Estudos espectroscopicos dos complexos europio-tetraciclinas e suas aplicacoes na deteccao de peroxido de hidrogenio e peroxido de ureia." reponame:Repositório Institucional do IPEN, 2010. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9567.

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Made available in DSpace on 2014-10-09T12:28:07Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:01:37Z (GMT). No. of bitstreams: 0<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
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Mambrim, Filho Otavio. "Estudos cineticos das reações de compostos modelos de lignina com peroxido de hidrogenio." [s.n.], 1999. http://repositorio.unicamp.br/jspui/handle/REPOSIP/248833.

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Orientador: Matthieu Tubino<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Quimica<br>Made available in DSpace on 2018-07-27T03:36:09Z (GMT). No. of bitstreams: 1 MambrimFilho_Otavio_D.pdf: 4558596 bytes, checksum: 7c3628ba27dcff235b63079347d9634f (MD5) Previous issue date: 1999<br>Doutorado
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Pereira, Ricardo. "Oxidação biomimetica de cicloexano por peroxido de hidrogenio catalisada por sais de cobre (II)." [s.n.], 1994. http://repositorio.unicamp.br/jspui/handle/REPOSIP/249833.

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Orientador : Ulf Shuchardt<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Quimica<br>Made available in DSpace on 2018-07-19T03:08:40Z (GMT). No. of bitstreams: 1 Pereira_Ricardo_M.pdf: 2553747 bytes, checksum: 9a9cb44b2a37156e2a7514aa551ab329 (MD5) Previous issue date: 1994<br>Mestrado
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Delgado, Denise Aparecida. "Ação esporicida do peroxido de hidrogenio sobre bolores isolados em laminado para embalagens assepticas." [s.n.], 2001. http://repositorio.unicamp.br/jspui/handle/REPOSIP/255386.

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Orientador: Pilar Rodriguez de Massaguer<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia e Alimentos<br>Made available in DSpace on 2018-07-28T11:39:18Z (GMT). No. of bitstreams: 1 Delgado_DeniseAparecida_D.pdf: 47828000 bytes, checksum: a60e86fd22c7f8d3017a574a66eac76a (MD5) Previous issue date: 2001<br>Resumo: o objetivo do presente trabalho foi avaliar a atividade esporicida do peróxido de hidrogênio sobre bolores isolados de laminado para a confecção de embalagens destinadas ao envase asséptico de polpa de tomate. ¿Observação: O resumo, na íntegra poderá
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Cardoso, Claudio Fernandes. "Avaliação da esterilização de filme de polietileno com peroxido de hidrogenio e radiação ultravioleta." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/254554.

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Orientador: Jose de Assis Fonseca Faria<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos<br>Made available in DSpace on 2018-08-08T11:53:49Z (GMT). No. of bitstreams: 1 Cardoso_ClaudioFernandes_M.pdf: 1146025 bytes, checksum: 703b38e7eec6c1ffc7f2de65b30ab581 (MD5) Previous issue date: 2007<br>Resumo: O objetivo deste trabalho consistiu no processamento e avaliação de desempenho de um sistema asséptico piloto para filme de polietileno de baixa densidade (PEBD). Através da metodologia de planejamento experimental fatorial foram feitas variaçõe
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Braatz, Simoní Marinéia. "Avaliação do efeito citoprotetor do extrato bruto das folhas de Eugenia uniflora L. (Pintanga) e de compostos bioativos isolados em células secretoras de insulina." UNIVERSIDADE ESTADUAL DE PONTA GROSSA, 2010. http://tede2.uepg.br/jspui/handle/prefix/951.

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Made available in DSpace on 2017-07-21T19:59:50Z (GMT). No. of bitstreams: 1 Simoni Marineia Braatz.pdf: 10395189 bytes, checksum: 4c6c59c43b05d7cdd5092ae73a0d7737 (MD5) Previous issue date: 2010-02-22<br>Surinam cherry leaves are popularly used as an alternative treatment for diabetes mellitus. They are rich in phenolic compounds which have antioxidant properties. Besides, it is well known that reactive species influence in the progression of diabetes. The aim of this study was to evaluate the antioxidant, cytotoxic and cytoprotective activity of the crude leaf extracts of Eugenia uniflora
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Spinace, Estevam Vitorio. "Estudo da oxidação de cicloexano com peroxido de hidrogenio catalisada por titanossilicalita-1 (TS-1)." [s.n.], 1995. http://repositorio.unicamp.br/jspui/handle/REPOSIP/249499.

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Orientador: Ulf F. Schuchardt, Heloise de Oliveira Pastore<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Quimica<br>Made available in DSpace on 2018-07-20T09:49:06Z (GMT). No. of bitstreams: 1 Spinace_EstevamVitorio_D.pdf: 1877278 bytes, checksum: cfbf34b2ac8b2c9365d7bfa252c5e687 (MD5) Previous issue date: 1995<br>Doutorado
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Conference papers on the topic "Peroxid de hidrogen"

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Arriaga-Madrid, Daniel Alejandro, Ramon Guevara Gonzalez, Angelica Feregrino Perez, Luis Miguel Contreras Medina, and Perez Alejandra Cortez. "Production of glucosinolates in different organs of white mustard plant (Sinapis alba L.) as a result of the application of hidrogen peroxide." In 2017 XIII International Engineering Congress (CONIIN). IEEE, 2017. http://dx.doi.org/10.1109/coniin.2017.7968185.

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