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Bottle-in-bottle reaction device: Portable gas pressure meter for rapid and on-site analysis of oxalate in spinach and tea beverages.
Tang, Jiayuan; Zhuo, Dali; Dong, Xiaoyu; Xiao, Jing; Zhang, Shu; Xiong, Xiaoli; Tan, Chao; Zou, Zhirong.
Afiliación
  • Tang J; Key Laboratory of the Evaluation and Monitoring of Southwest Land Resources (Ministry of Education), College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan, 610068, China.
  • Zhuo D; Key Laboratory of the Evaluation and Monitoring of Southwest Land Resources (Ministry of Education), College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan, 610068, China.
  • Dong X; Key Laboratory of the Evaluation and Monitoring of Southwest Land Resources (Ministry of Education), College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan, 610068, China.
  • Xiao J; Key Laboratory of the Evaluation and Monitoring of Southwest Land Resources (Ministry of Education), College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan, 610068, China.
  • Zhang S; Key Laboratory of the Evaluation and Monitoring of Southwest Land Resources (Ministry of Education), College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan, 610068, China.
  • Xiong X; Key Laboratory of the Evaluation and Monitoring of Southwest Land Resources (Ministry of Education), College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan, 610068, China.
  • Tan C; Key Lab of Process Analysis and Control of Sichuan Universities, Yibin University, Yibin, Sichuan, 644000, China.
  • Zou Z; Key Laboratory of the Evaluation and Monitoring of Southwest Land Resources (Ministry of Education), College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan, 610068, China.
Food Chem X ; 23: 101638, 2024 Oct 30.
Article en En | MEDLINE | ID: mdl-39113741
ABSTRACT
A gas pressure meter-based portable/miniaturized analytical kit was established for rapid and on-site detection of oxalate. Potassium permanganate (KMnO4) and oxalate solution were mixed together in bottle-in-bottle reaction device, a simple oxidation reaction process occurred within 6 min and carbon dioxide (CO2) was generated, inducing the pressure of the sealed bottle changed, which was measured by a portable gas pressure meter. A detectable range of 0.1-6 µmol mL-1 and a detection limit of 0.064 µmol mL-1 were achieved. The proposed analytical method was further used for the analysis of several real samples (spinach, beverages and water samples), with the recoveries of 89-111%. Considering the interferences from the complicated matrix, calcium chloride (CaCl2) was served as a precipitant, oxalate (C2O4 2-) was precipitated with Ca2+ to form precipitation (CaC2O4), CaC2O4 was then separated from the matrix by centrifuge/filter, eliminating the interferences. It is a rapid, easy-used and interference-free analytical system/device for oxalate on-site and real time analysis.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Food Chem X Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos
Texto completo
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XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Food Chem X Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos