Environmentally friendly LLME-LTP of the bisphenol A from bovine milk samples DOI

Natalia N. Teixeira,

Fernanda C.O.L. Martins, Wanessa R. Melchert

et al.

Spectroscopy Letters, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 11

Published: Nov. 18, 2024

This paper developed a novel and environmental microextraction for bisphenol A from milk samples using liquid-liquid with low-temperature partitioning, which is sample clean-up step endocrine disruptors, being suitable alternative. Furthermore, the determination steps were optimized to determine quantify milk. Thus, of it was made HPLC fluorescence detection, obtaining analytical linear range 5.0 150 µg L−1 (Area = 11,894 C (µg L−1) + 22,595) good linearity (r 0.9983), quantification (5.0 limit, variation coefficient (4.4%), according established by regulatory agencies. The employed only 500 µL bovine 1000 acetonitrile, excellent recovery values (89 − 105%) in UHT pasteurized proposed methodology had several advantages determining A, such as quick analysis, miniaturization process, decreasing solvent volume, following Green Analytical Chemistry.

Language: Английский

Centrifugation-assisted low-temperature phase separation coupled with back-extraction to enhance the selective extraction of zearalenone and alternaria mycotoxins in cereals and feed DOI
Shaohua Li, Zhaoyao Zhan, Yue Tang

et al.

Microchemical Journal, Journal Year: 2025, Volume and Issue: unknown, P. 112934 - 112934

Published: Jan. 1, 2025

Language: Английский

Citations

0
Highly efficient separation of anthracene and carbazole in crude anthracene by composite extractants with low viscosity DOI
Yuanyuan Wang, Wenhai Zhang,

D. WANG

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161589 - 161589

Published: March 1, 2025

Language: Английский

Citations

0
Factorial Optimization and Validation of Solid–Liquid Extraction with Low-Temperature Partitioning of Pesticide Residues from Pequi Pulp Using High-Performance Liquid Chromatography with a Photodiode Array Detector (HPLC-DAD) DOI Creative Commons
Miguel Ferreira,

João Paulo Balbino da Silva,

María Renata Rocha Pereira

et al.

ACS Omega, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

In this study, we developed a solid-liquid extraction method with low-temperature partitioning for extracting six pesticide residues (carbendazim, diuron, carboxin, chlorpyrifos, terbutylazine, and thiabendazole) from pequi pulp. Pequi is key fruit of the Brazilian Cerrado biome, which characterized by its intensive agricultural activity. This sample preparation technique was chosen simplicity, minimal analyst intervention, effective food samples. The selected pesticides reflect those widely used in grain sugar cane monocultures within biome. optimization pulp samples conducted using experimental design approaches. Pesticide recoveries ranged 86 to 118% under optimized conditions, included 500 mg sample, 7.2 mL ethyl acetate, 3.4 water, freezing time 3 h. validated method, performed single step without additional cleanup procedures, demonstrated selectivity, robustness, limits quantification below 6.9 μg kg-1, as well high efficiency. No were detected collected strategic cities Cerrado. absence may be attributed protective nature thick external epicarp, shields contamination, even areas

Language: Английский

Citations

0
Dynamic Water-Driven Competitive Strategy Enables Selective and Easily Regenerable C2H2/C2H4 Separation on Gallate-Based Metal–Organic Framework Nanostructures DOI
Meiying Su, Xiaojing Wang, Wei Su

et al.

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 13, 2025

Language: Английский

Citations

0
Quantification of cresols in liquid smoke samples employing liquid–liquid extraction with low-temperature purification and analysis by gas chromatography–mass spectrometry DOI

Marina Ranna Pinheiro Vasconcelos,

Lucélio Marques Alves Costa,

Flaviano Oliveira Silvério

et al.

Journal of Environmental Science and Health Part B, Journal Year: 2024, Volume and Issue: 59(9), P. 562 - 570

Published: July 29, 2024

Liquid smoke is a food additive and cresols are among its chemical constituents, potentially toxic to human health. Thus, the objective of this study was develop method quantify in liquid smoke. First, liquid-liquid extraction with low temperature purification (LLE-LTP) validated for water, as there no cresol-free samples. Analyzes were performed by gas chromatography coupled mass spectrometry full scan mode. LLE-LTP subsequently applied five commercial samples Validation results showed that proposed selective cresols, linear range 0.5 35 mg L−1, limit quantification recovery rate between 90% 104% relative standard deviation lower than 10%. The ranged from 3.0 38.3 L−1 concentration these contaminants remained constant at least 21 days 25 °C.

Language: Английский

Citations

0
Development of a Low-Temperature Purification Method for Gas Chromatography–Mass Spectrometry Quantification of Three Cresol Isomers in Smoked Bacon DOI

Maria Eduarda A. Ruas,

Flaviano Oliveira Silvério, Gevany Paulino de Pinho

et al.

Food Analytical Methods, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 23, 2024

Language: Английский

Citations

0
Environmentally friendly LLME-LTP of the bisphenol A from bovine milk samples DOI

Natalia N. Teixeira,

Fernanda C.O.L. Martins, Wanessa R. Melchert

et al.

Spectroscopy Letters, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 11

Published: Nov. 18, 2024

This paper developed a novel and environmental microextraction for bisphenol A from milk samples using liquid-liquid with low-temperature partitioning, which is sample clean-up step endocrine disruptors, being suitable alternative. Furthermore, the determination steps were optimized to determine quantify milk. Thus, of it was made HPLC fluorescence detection, obtaining analytical linear range 5.0 150 µg L−1 (Area = 11,894 C (µg L−1) + 22,595) good linearity (r 0.9983), quantification (5.0 limit, variation coefficient (4.4%), according established by regulatory agencies. The employed only 500 µL bovine 1000 acetonitrile, excellent recovery values (89 − 105%) in UHT pasteurized proposed methodology had several advantages determining A, such as quick analysis, miniaturization process, decreasing solvent volume, following Green Analytical Chemistry.

Language: Английский

Citations

0