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Showing 121-140 of 10,000 results
  1. A rapid room-temperature cloud point extraction for spectrophotometric determination of Copper (II) with 6,7-dihydroxy-2,4-diphenylbenzopyrylium chloride

    The conditions for the surfactant rich phase of Triton X-100 formation and the extraction of Copper (II) as a complex with...

    Denys Snigur, Vitaliy Duboviy, ... Kateryna Bevziuk in Analytical Sciences
    Article 19 May 2022
  2. A Fabric Phase Sorptive Extraction Protocol Combined with Liquid Chromatography-Fluorescence Detection for the Determination of Ochratoxin in Food Samples

    The sample preparation step is very useful in obtaining precise and accurate results. Achieving a quickly performed, inexpensive, sensitive, and...

    Aida Esmati Arze Olia, Alireza Mohadesi, Javad Feizy in Food Analytical Methods
    Article 20 March 2023
  3. Air-assisted cloud point extraction coupled with inductively coupled plasma optical emission spectroscopy for determination of samarium in environmental samples

    For the first time, air-assisted cloud point extraction (AACPE) was presented to preconcentrate metal ions. The procedure was conjugated with...

    Wael I. Mortada, Aya A. Awad, ... Magdi E. Khalifa in Analytical Sciences
    Article Open access 31 August 2022
  4. Extraction and Analysis of Polyphenolic Compounds in Ficus carica L.

    Figs (Ficus carica L.) are a rich source of phytochemicals and are of high economic value due to their medicinal properties and potential use in drug...
    Chapter 2023
  5. Determination of an optimum extraction region for the recovery of bioactive compounds from olive leaves (Olea europaea L.) using green dynamic pressurized liquid extraction

    Pressurized liquid extraction with water and ethanol was employed to obtain high antioxidant extracts from olive leaves ( Olea europaea L.). The...

    Patrícia Sabino da Silva, Franciele Leila Giopato Viell, ... Lucio Cardozo-Filho in Brazilian Journal of Chemical Engineering
    Article 05 September 2022
  6. Pressurized solvent extraction for the determination of alkanes and polycyclic aromatic hydrocarbons by GC/MS in diesel engine emissions: optimization by response surface methodology

    The particulate pollution problem is very complex due to the diversity of sources, the chemical composition of the effluents, the size of the...

    Article 17 April 2023
  7. Characterization of cellulase immobilized by different methods of entrapment and its application for carrot juice extraction

    In the present study, cellulase has been immobilized by two different methods of entrapment viz. encapsulation in calcium alginate and matrix...

    Bhaskar Jyoti Kalita, Nandan Sit in Food Science and Biotechnology
    Article 04 September 2023
  8. Green chromatographic methods for determination of co-formulated lidocaine hydrochloride and miconazole nitrate along with an endocrine disruptor preservative and potential impurity

    Recently, green analytical chemistry (GAC) is a key issue towards the idea of sustainability, the analytical community is focused on develo**...

    Esraa S. Ashour, Maha A. Hegazy, ... Nermine S. Ghoniem in BMC Chemistry
    Article Open access 08 November 2023
  9. An optimization study for amino acid extraction from bee bread using choline chloride-acetic acid deep eutectic solvent and determination of individual phenolic profile

    In this study, the aim was to optimize the extraction conditions (molar ratio, time, temperature) in order to maximize the total individual amino...

    Naciye Kutlu, Yusuf Can Gerçek, ... Nesrin Ecem Bayram in Journal of Food Measurement and Characterization
    Article 13 November 2023
  10. Determination of lead and cadmium by magnetic solid-phase extraction (MSPE) using Co3O4@Fe3O4 nanoflowers and flame atomic absorption spectrometry (FAAS)

    Heavy metal ions penetrate wastewater and clean water sources, leading to environmental pollution which adversely affecting human health. The...

    Şeyma Korkmaz, Nurdan Kurnaz Yetim, ... Cemile Özcan in Chemical Papers
    Article 05 April 2024
  11. Determination of Polycyclic Aromatic Hydrocarbons (PAHs) in Seafood by Matrix Solid-Phase Dispersion and Pressurized Liquid Extraction Followed by GC-MS/MS Analysis

    Polycyclic aromatic hydrocarbons (PAHs) are hazardous organic contaminants that pose a significant chemical risk to consumers. One of the main...
    Luana de Souza Futigami, Ana Paula Zapelini de Melo, ... Rodrigo Hoff in Chemical Food Contaminants Analysis
    Chapter 2024
  12. Surface molecularly imprinted solid-phase extraction for the determination of vancomycin in plasma samples using HPLC–MS/MS

    Vancomycin is a glycopeptide antibiotic used to treat infections caused by Gram-positive bacteria. Due to the narrow therapeutic index of vancomycin,...

    Hao Zhou, Qianqian Chen, ... Rong Liu in Analytical Sciences
    Article 16 July 2022
  13. Evaluation of three extraction methods for the isolation of PAHs from recycled paperboard materials intended for food contact applications

    The present work is part of a comprehensive study aiming to identify and quantify an array of harmful contaminants at very low concentrations in...

    Ioanna-Efpraxia Parigoridi, Eleftheria Tsoumani, ... Panagiotis G. Demertzis in European Food Research and Technology
    Article Open access 05 November 2022
  14. Comparison of Two Extraction Techniques (SDE vs. SPME) for the Determination of Garlic and Elephant Garlic Volatile Compounds

    Two extraction techniques, simultaneous distillation–extraction (SDE) and solid phase microextraction (SPME), were compared for the determination of...

    Federico Ferioli, Elisa Giambanelli, L. Filippo D’Antuono in Food Analytical Methods
    Article 11 March 2022
  15. Core–shell-structured magnetic covalent organic frameworks for effective extraction of parabens prior to their determination by HPLC

    Covalent organic framework (COF)–decorated magnetic nanoparticles (Fe 3 O 4 @DhaTab) with core–shell structure have been synthesized by one-pot method....

    **ao-Shuai Yang, Jie Zhao, ... ** Wang in Microchimica Acta
    Article 23 August 2022
  16. Simple extraction procedure for free amino acids determination in selected gluten-free flour samples

    The simple extraction of flours samples followed by free amino acids determination procedures was studied and optimised. The conditions of amino...

    Sylwia Kowalska, Edward Szłyk, Aneta Jastrzębska in European Food Research and Technology
    Article Open access 09 November 2021
  17. A radiochemistry laboratory exercise: determination of uranium in tap water by solvent extraction and liquid scintillation counting

    Environmental radiochemistry is a key pillar of the education of nuclear engineering students and young professionals. Teaching the fundamentals of...

    Gabriele Magugliani, Eros Mossini, ... Mario Mariani in Journal of Radioanalytical and Nuclear Chemistry
    Article Open access 03 November 2023
  18. Extraction and Assessment Methods as Well as Resources of Natural Antioxidants in Foods and Herbs

    Antioxidants could scavenge free radicals in the human body, and prevent and treat diseases induced by oxidative stress. In addition, antioxidants...
    Ao Shang, Min Luo, ... Hua-Bin Li in Plant Antioxidants and Health
    Reference work entry 2022
  19. Direct Determination of Pyrethroids in Aqueous Samples by a Metal Organic Framework “MIL-101(Cr)” Sorbent for Solid-Phase Extraction and Thermal Desorption Coupled with GC-FID

    Abstract

    In this study, an online solid-phase extraction-thermal desorption method coupled with gas chromatography-flame ionization detection was used...

    Mahsa Torabizadeh, Kourosh Tabar-Heydar, Seyyed Hamid Ahmadi in Journal of Analytical Chemistry
    Article 07 August 2022
  20. Impacts of extraction methods on physicochemical characteristics and bioactivities of polysaccharides from rice bran

    In this paper, hot water extraction (HWE), ultrasonic microwave cooperative extraction (UMAE) and alkali extraction (AE) were used to extract...

    Jia-Qi Meng, Pei-Pei Xu, ... Yi-Ting Xue in Journal of Food Measurement and Characterization
    Article 02 December 2021
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