Results 11 to 20 of about 2,120 (176)
Dispersive Liquid–Liquid Microextraction for the Quantitation of Terpenes in Wine [PDF]
Journal of Agricultural and Food Chemistry, 2020 To study the contribution of yeasts to the formation of terpene derivatives during winemaking, a dispersive liquid-liquid microextraction gas chromatography mass spectrometry method was developed for the quantitation of terpenes in white wines, synthetic wine, and a fermented synthetic medium.
Bergler, Guillaume +7 more
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Determination of Benzo(α)pyrene in Infant Formula Using High Performance Liquid Chromatography and Dispersive Liquid–Liquid Microextraction [PDF]
Pharmaceutical Sciences, 2023 Background: Benzo(α)pyrene (BaP) is one of the most familiar polycyclic aromatic hydrocarbons (PAHs) to evaluate food safety and quality and can be present in infant formulas An analytical method for the extraction and quantification of BaP in infant ...
Akram Faridi, Mahboob Nemati
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BMC Chemistry, 2019 In this study, a simple one-step ionic liquid-based ultrasound-assisted dispersive liquid–liquid microextraction technique was coupled with high-performance liquid chromatography for the analysis of four pyrethroids in three kinds of traditional Chinese ...
Yiyi Liao +8 more
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Application of dispersive liquidâliquid microextraction and high-performance liquid chromatography for the determination of cetrimonium bromide in water samples [PDF]
شیمی کاربردی روز, 2013 A simple, rapid and sensitive method for the determination of cetrimonium bromide at trace levels in water samples was developed by combining a dispersive liquid âliquid microextraction (DLLME) technique with high performance liquid ...
Maryam Rajabi, Mehri Ghazaghi
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Modern Approaches to Preparation of Body Fluids for Determination of Bioactive Compounds
Separations, 2019 The current clinical and forensic toxicological analysis of body fluids requires a modern approach to sample preparation characterized by high selectivity and enrichment capability, suitability for micro-samples, simplicity and speed, and the possibility
Katarzyna Madej, Wojciech Piekoszewski
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Química Nova, 2011 The determination of pesticide residues in water samples by Liquid Chromatography require sample preparation for extraction and enrichment of the analytes with the minimization of interferences to achieve adequate detection limits.
Sergiane Souza Caldas +5 more
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E3S Web of Conferences, 2013 Two liquid-phase microextraction procedures, single-drop microextraction (SDME) and dispersive liquid–liquid microextraction (DLLME), have been developed for the determination of lead by electrothermal atomic absorption spectrometry (ETAAS). Both methods
Efeçınar M. +2 more
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Micromachines, 2019 An integrated centrifugal microfluidic device was developed to preconcentrate and detect hazardous mercury (II) in water with ionic liquid as environmentally friendly extractant.
Yun Hui +6 more
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Extraction and Determination of Crocin in Saffron Samples by Dispersive Liquid-Liquid Microextraction [PDF]
Zirā̒at va Fanāvarī-i Za̒farān, 2016 The main component responsible for color in saffron is crocin with the chemical formula of C44H64O24. Crocin is one of several carotenoids in nature that is soluble in water. This solubility is one of the reasons for its widespread usage as a colorant in
Somayeh Heydari, Maryam Khalili
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State-of-the-art on the technique of dispersive liquid-liquid microextraction
Ultrasonics Sonochemistry, 2019 Dispersive liquid-liquid microextraction is a new sample pretreatment technology based on traditional liquid liquid extraction. In this paper, the application of low-toxicity extractants such as low-density extractants, auxiliary extractants, stripping agents and ionic liquids in this technology and the extraction modes such as solvent de ...
Qiangfeng, Wang +4 more
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