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Showing 121-140 of 1,887 results
  1. Development of temperature-assisted solidification of floating organic droplet-based dispersive liquid–liquid microextraction performed during centrifugation for extraction of organochlorine pesticide residues in cocoa powder prior to GC-ECD

    A temperature-assisted solidification of floating organic droplet-dispersive liquid–liquid microextraction (DLLME) method has been developed for the...

    Asghar Mardani, Mohammadali Torbati, ... Mohammad Reza Afshar Mogaddam in Chemical Papers
    Article 23 November 2020
  2. Salting-Out Induced Liquid-Liquid Microextraction: an Environmentally Friendly Approach to Preservative Determination in Food Samples

    The salting-out induced liquid-liquid microextraction technique was properly evaluated for preservative determination in processed food samples. In...

    Jean Lucas de Oliveira Arias, Caroline Borges Rocha, ... Ednei Gilberto Primel in Food Analytical Methods
    Article 13 March 2021
  3. Selected Microextraction Techniques Using Ionic Liquids in the Study of Biologically Active Compounds

    Monitoring the compounds found in biological and environmental samples at low concentration levels is not an easy task. The main analytical problems...
    Iwona Rykowska, Iwona Nowak, Wiesław Wasiak in Handbook of Bioanalytics
    Reference work entry 2022
  4. Selected Microextraction Techniques Using Ionic Liquids in the Study of Biologically Active Compounds

    Monitoring the compounds found in biological and environmental samples at low concentration levels is not an easy task. The main analytical problems...
    Iwona Rykowska, Iwona Nowak, Wiesław Wasiak in Handbook of Bioanalytics
    Living reference work entry 2022
  5. Modern Approaches to the Extraction and Preconcentration of Biologically Active Compounds from Plant Samples by Microextraction Methods for Their Determination by Chromatography–Mass Spectrometry

    Abstract

    The review considers the main trends in actively develo** methods of solid-phase and liquid–liquid microextraction for the extraction,...

    E. A. Bessonova, D. A. Karpitskii, L. A. Kartsova in Journal of Analytical Chemistry
    Article Open access 30 October 2023
  6. Sample extraction techniques and high-performance liquid chromatographic methods for the analysis of bisphenols

    Bisphenols (BPs) have attracted attention worldwide due to their distribution in environmental, biological fluids and food matrices. Therefore, the...

    Shazalia Mahmoud Ahmed Ali, Abdalla Ahmed Elbashir, ... Hassan Y. Aboul-Enein in Journal of the Iranian Chemical Society
    Article 03 March 2022
  7. Surfactant-Assisted Microextraction Method for Spectrophotometric Determination of Bismuth

    Abstract

    A liquid-phase microextraction combined with ultraviolet-visible region spectrophotometry was introduced for the preconcentration of Bi(III)...

    Zekeriyya Bahadır in Journal of Analytical Chemistry
    Article 01 January 2024
  8. Natural deep eutectic solvent-based microextraction for mercury speciation in water samples

    A new natural deep eutectic solvent (NADES)-based analytical method for mercury speciation in water samples is presented. A NADES (i.e., decanoic...

    Laura Ripoll, Javier Rayos, ... Antonio Canals in Analytical and Bioanalytical Chemistry
    Article Open access 06 March 2023
  9. HPLC-MS/MS method for the determination of perfluoroalkyl substances in breast milk by combining salt-assisted and dispersive liquid-liquid microextraction

    The widespread use of perfluoroalkyl substances has resulted in the universal exposure of humans to these endocrine-disrupting chemicals, including...

    Fernando Vela-Soria, Laura Serrano-López, ... Carmen Freire in Analytical and Bioanalytical Chemistry
    Article 16 September 2020
  10. A Novel Method of Homogeneous Liquid–Liquid Microextraction via Flotation Assistance Coupled to Liquid Chromatography for the Determination of Trace Imidacloprid in Water Samples

    Abstract

    This paper describes a novel method for the sensitive determination of imidacloprid using homogeneous liquid−liquid microextraction via...

    Mohammad Rezaee, Mohammad Reza Pourjavid, ... Faezeh Khalilian in Journal of Analytical Chemistry
    Article 19 December 2020
  11. Covalent organic framework in situ grown on Fe3O4 hollow microspheres for stir bar sorptive-dispersive microextraction of triazole pesticides

    Based on covalent organic framework (COF) 1,3,5-tris-(4-formylphenyl)benzene-benzidine (TFPB-BD) in situ grown on Fe 3 O 4 hollow microspheres and...

    Yu-**n Wang, **ao-Fang Shen, ... Yue-Hong Pang in Microchimica Acta
    Article 20 December 2022
  12. Pesticide content analysis of red and yellow watermelon juices through a solid phase microextraction using a green copper-based metal–organic framework synthesized in water followed by a liquid phase microextraction procedure

    For the first time, this survey demonstrates the use of MIL-53 (Cu) in an analytical method for the detection and determination of some pesticides...

    Sakha Pezhhanfar, Mir Ali Farajzadeh, ... Mohammad Reza Afshar Mogaddam in Analytical Sciences
    Article 23 December 2022
  13. Effervescence-assisted liquid phase microextraction prior to slotted quartz tube-flame atomic absorption spectrometry for cadmium determination in domestic wastewater samples

    This paper describes an effervescence-assisted liquid phase microextraction (EA-LPME) method coupled to the SQT-FAAS system for determining trace...

    Tülay Borahan, Nazime Ebrar Karlıdağ, ... Sezgin Bakırdere in Chemical Papers
    Article 23 July 2021
  14. Determination of Polycyclic Aromatic Hydrocarbons in Soil and Bottom Sediments by Gas Chromatography–Mass Spectrometry Using Dispersive Liquid–Liquid Microextraction

    Abstract

    The problems and advantages of chromatographic methods for the determination of polycyclic aromatic hydrocarbons (PAHs) in model and real...

    Z. A. Temerdashev, T. N. Musorina, T. A. Chervonnaya in Journal of Analytical Chemistry
    Article 31 July 2020
  15. Combining of modified QuEChERS and dispersive liquid–liquid microextraction as an efficient sample preparation method for extraction of acetamiprid and imidacloprid from pistachio samples

    In this research, for the first time, the QuEChERS was combined with the dispersive liquid–liquid microextraction based on deep eutectic solvent...

    Hasan Khanehzar, Mohammad Faraji, ... Yadollah Yamini in Journal of the Iranian Chemical Society
    Article 06 September 2020
  16. Green microfluidic liquid-phase microextraction of polar and non-polar acids from urine

    In this work, hippuric acid (log P  = 0.5), anthranilic acid (log P  = 1.3), ketoprofen (log P  = 3.6), and naproxen (log P = 3.0) were simultaneously...

    Elia Santigosa, Stig Pedersen-Bjergaard, ... María Ramos-Payán in Analytical and Bioanalytical Chemistry
    Article 21 April 2021
  17. Multiple Response Optimization of an Ionic Liquid-DLLME and UHPLC-DAD Analysis of Five Coccidiostats in the Chicken Liver with LC–MS/MS Confirmation

    Pharmaceutical residues in animal food products from various sources are a crucial concern regarding food safety measures for human welfare....

    Veena Jain, Somendu Kumar Roy in Chromatographia
    Article 04 October 2023
  18. Ionic liquid-modified UiO-66-NH2 as sorbent of dispersive solid-phase extraction for rapid adsorption and enrichment of benzoylurea insecticides

    Ionic liquid (IL)-modified UiO-66-NH 2 composite was prepared and used as sorbent of dispersed solid-phase extraction (dSPE) for extracting trace...

    Dan Li, Yanmei Gao, ... Minghua Lu in Microchimica Acta
    Article 18 October 2023
  19. Implementation of a spraying-assisted fine droplet formation-based simultaneous liquid-phase microextraction method for the determination of copper in clove extract samples

    A simultaneous liquid-phase microextraction method was investigated as an alternative to the traditional dispersive liquid–liquid microextraction for...

    Nouha Bakaraki Turan, Buse T. Zaman, ... Sezgin Bakirdere in Chemical Papers
    Article 13 February 2021
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