สืบค้นงานวิจัย
Successive detection of benzoic acid and total parabens in foodstuffs using mercaptosuccinic acid capped cadmium telluride quantum dots
Prapainop K. - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Successive detection of benzoic acid and total parabens in foodstuffs using mercaptosuccinic acid capped cadmium telluride quantum dots
ผู้แต่ง / หัวหน้าโครงการ (EN): Prapainop K.
บทคัดย่อ (EN): An approach for the determination of benzoic acid (BA) and total paraben content using mercaptosuccinic acid capped CdTe quantum dots (MSA-CdTe QDs) as an optical probe is presented. The levels of these preservatives in the samples of liquid foodstuff could be determined by both visible and fluorescent detection methods. For the analysis of paraben content, sample hydrolysis under alkaline conditions was required in order to obtain p-hydroxybenzoic acid (PHBA) prior to the addition of MSA-CdTe QDs. Both BA and PHBA could be quantified by their quenching of QD fluorescence, owing to the formation of hydrogen bonds between the carboxylic acid groups of the MSA-CdTe QDs and the analytes. Reverse-phase C18 solid phase extraction cartridge was exploited to reduce sample loss and organic solvent consumption in the sample preparation steps. The developed approach was successfully applied for the determination of the BA and total paraben content found in orange juice, soft drink, energy drink, beer, coconut milk, and fish sauce, giving a limit of detection of 0.3 mg/L for BA analysis, and 0.1 mg/L for PHBA (hydrolyzed form of parabens) analysis, with a linearity range from 1.0 mg/L to 500.0 mg/L. Since the concentrations of most preservatives added to products are controlled and regulated by raw, therefore, quality control is necessary to monitor the levels of these agents in products to better ensure the safety of customers. © 2018 Elsevier Ltd
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เอกสารแนบ (EN): https://www.scopus.com/inward/record.uri?eid=2-s2.0-85056200937&doi=10.1016%2fj.foodcont.2018.10.009&partnerID=40&md5=570d35bd3524037002bdbd741ee04cd0
เผยแพร่โดย (EN): มหาวิทยาลัยมหิดล
คำสำคัญ (EN): Quenching
เจ้าของลิขสิทธิ์ (EN): มหาวิทยาลัยมหิดล
หากไม่พบเอกสารฉบับเต็ม (Full Text) โปรดติดต่อหน่วยงานเจ้าของข้อมูล

การอ้างอิง


TARR Wordcloud:
Successive detection of benzoic acid and total parabens in foodstuffs using mercaptosuccinic acid capped cadmium telluride quantum dots
Prapainop K.
มหาวิทยาลัยมหิดล
ไม่ระบุวันที่เผยแพร่
Detection of Mycobacterium tuberculosis and Its Rifampicin Resistance by Automated Nucleic Acid Amplification Test Analysis of Ascorbic Acid and Isoascorbic Acid in Orange and Guava Fruit Juices Distributed in Thailand by LC-IT-MS/MS Hydrolysis of delignified sugarcane bagasse using hydrothermal technique catalyzed by carbonaceous acid catalysts Two-step acid and alkaline ethanolysis/alkaline peroxide fractionation of sugarcane bagasse and rice straw for production of polylactic acid precursor การปรับปรุงพันธุ์ข้าวโพดให้มีลักษณะ low-phytic acid Rapid molecular detection of multidrug- resistant tuberculosis by PCR-nucleic acid lateral flow immunoassay ศึกษาเปรียบเทียบวิธีการหา Acid detergent fiber Immunodiagnostic monoclonal antibody-based sandwich ELISA of fasciolosis by detection of Fasciola gigantica circulating fatty acid binding protein Fatty acid methyl ester (FAME) production from soybean oil under ambient conditions using strontium loaded bovine bone TECHNIQUES FOR STUDYING THE TRANSPORTATION OF JASMONIC ACID IN HEVEA BRANSILINSIS
คัดลอก URL
กระทู้ของฉัน
ผลการสืบค้นทั้งหมด โพสต์     เรียงลำดับจาก