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Upper gastrointestinal burns by peroxyacetic acid in children:a review of seven cases

Journal of Nanjing Medical University 2006年第1期20卷 30-33页

作者： Zhibin Niu Keren Zhang Weilin Wang Department of Pediatric Surgery Shengiing Hospital of Oaina Medical University Shenyang 110004 China

Objective： To study the clinical features of upper gastrointestinal burns by peroxyacetic acid （PA） in children and improve its treatment and outcome. Methods： The clinical materials of 7 cases with upper gastrointestinal burns by PA including clinical presentation, treatment and outcomes were reviewed. Results： There were six boys and one girl. The concentration of the swallowed PA was from 10% to 20% and the amount was 3-10 ml. The mainly bums were located in esophagus in one case, stomach in three cases, both esophagus and stomach in three cases. The gastrostomy and operation of dilating esophagus were performed in the cases with esophageal stricture. The pyloroplasty or gastroduodenostomy was performed in the cases with pyloric obstruction. All the cases were followed up for 12-18 months, dysfunction of esophagus or（and） cardia as well as stiffness and hypodynamia of the stomach was showed in most of the patients. Conclusion： The degree of upper gastrointestinal burns by PA varied according to different concentrations of PA which was swallowed. Correct emergent measures in the acute stage of the burns was very important, gastric tube should be inserted and go through esophagus and pylorus and must be retained for 5-8 weeks to prevent the stricture of esophagus and pylortts, otherwise the tube could act as a passage of nutriment. Prophylaxis of upper gastrointestinal bums by PA is very important because the treatment of the burns is difficulty and the outcomes are not always satisfactory.

关键词： peroxyacetic acid caustic burns upper gastrointestinal tract

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A review of measurement methods for peracetic acid (PAA)

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Frontiers of Environmental Science & Engineering 2020年第5期14卷 127-136页

作者： Chen Cheng Haodong Li Jinling Wang Hualin Wang Xuejing Yang National Engineering Laboratory for Industrial Wastewater Treatment East China University of Science and Technology(ECUST)Shanghai 200237China State Key Laboratory of Chemical Engineering ECUSTShanghai 200237China

peroxyacetic acid has been widely used in food,medical,and synthetic chemical fields for the past several ***,peroxyacetic acid has gradually become an effective alternative disinfectant in wastewater disinfection and has strong redox capacity for removing micro-pollutants from drinking ***,commercial peroxyacetic acid solutions are primarily multi-component mixtures of peroxyacetic acid,acetic acid,hydrogen peroxide,and *** the process of water treatment,peroxyacetic acid and hydrogen peroxide(H2O2)often coexist,which limits further investigation on the properties ofperoxyacetic ***,analytical methods need to achieve a certain level of selectivity,particularly when peroxyacetic acid and hydrogen peroxide *** review summarizes the measurement and detection methods of peroxyacetic acid,comparing the principle,adaptability,and relative merits of these methods.

关键词： peroxyacetic acid Measurement methods Titration Colorimetric Chromatography NMR

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In field control of Botrytis cinerea by synergistic action of a fungicide and organic sanitizer

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Journal of Integrative Agriculture 2018年第6期17卷 1401-1408页

作者： Fatima Ayoub Najwa Ben oujji Mohamed Ayoub Athman Hafidi Rachid Salghi Shehdeh Jodeh Laboratory of Applied Chemistry and Environment National School of Applied ScienceIbn Zohr University Ecolink International Zone Industrielle Department of Chemistry An-Najah National University

A new Integrated Pest Management program based on the combination of synthetic pesticide with a GRAS （generally recognized as safe）-classified sanitizer for the control of Botrytis cinerea in field conditions was described. The aim behind this research was to determine whether the use of this mixture would enhance the efficiency of pesticides while decreasing the recommended dose. Naturally infected tomato plants, grown in the greenhouse, were treated with two commonly used fungicides SWITCH （Syngenta, Switzerland） and SIGNUM （BASF, Germany） each alone or combined with a commercially available organic sanitizer PERACLEAN？5 （Evonik Industries, Germany）. A total of 27 treatments were tested consisting of three concentrations of synthetic fungicide （×1, ×1/2 and ×1/4 of the recommended dose） either applied separately or combined with three concentrations of the tested sanitizer （0.5, 1 and 1.5％）. The control efficacy achieved by the fungicides applied alone ranged between 0 and 66.7％ while all fungicide-sanitizer mixtures resulted in up to 70％ control of grey mould. The treatment that provides the maximum control of B. cinerea was the result mixture of ×1/4 of the recommended concentration of SWITCH （15 g L-1） with 0.5％ of PERACLEAN？5. This combination suppressed 85％ of grey mold infections while decreasing the usually used amount of this pesticide by 75％, reducing therefore the well known negative impacts of chemical pesticides on environment and consumers health.

关键词： Botrytis cinerea tomatoes peroxyacetic acid PERACLEAN^(■)5 SIGNUM SWITCH

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Highly active catalyst for vinyl acetate synthesis by modified activated carbon

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Chinese Chemical Letters 2009年第7期20卷 865-868页

作者： Chun Yan Hou Liang Rong Feng Fa Li Qiu Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 China The Graduate School of Chinese Academy of Science Beijing 100049 China

A new zinc acetate catalyst which was prepared from modified activated carbon exhibited extreme activity towards the synthesis of vinyl acetate. The activated carbon was modified by nitric acid, vitriol and peroxyacetic acid （PAA）. The effect on specific area, structure, pH and surface acidity groups of carders by modification was discussed. Amount of carbonyl and carboxyl groups in activated carbon was increased by peroxyacetic acid treatment. The productivity of the new catalyst was 14.58% higher than that of catalyst prepared using untreated activated carbon. The relationship between amount of carbonyl and carboxyl groups （m） and catalyst productivity （P） was P = 1.83 ＋ 2.26 × 10^-3＊e^3.17m. Reaction mechanism was proposed. C 2009 Liang Rong Feng. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

关键词： Surface acidic groups peroxyacetic acid Activated carbon Catalyst for vinyl acetate synthesis

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