Results 71 to 80 of about 5,286,924 (174)

Recent Advances in the Extraction of Polycyclic Aromatic Hydrocarbons from Environmental Samples

Molecules, 2020
Polycyclic aromatic hydrocarbons (PAHs) comprise a group of chemical compounds consisting of two or more fused benzene rings. PAHs exhibit hydrophobicity and low water solubility, while some of their members are toxic substances resistant to degradation.
Natalia Manousi, George A. Zachariadis
doaj   +1 more source

Machine Learning–Based Optimization of Phthalate Extraction Conditions Using HS‐INME‐GC/MS Data

Journal of Chemometrics, Volume 40, Issue 10, October 2026.
ABSTRACT Optimization of extraction conditions in GC/MS analysis remains challenging because experimental variables can interact in complex and nonlinear ways. In this study, a machine learning based chemometric workflow was applied to optimize headspace in‐needle microextraction GC/MS (HS‐INME‐GC/MS) conditions for four phthalates: dimethyl phthalate (
Hyeyoung Jung, Sunyoung Bae, Jooyoung Kim   +2 more
wiley   +1 more source

Effects of Different Drying Methods on the Physicochemical Properties and Flavor Profile of Chaenomeles speciosa (Sweet) Nakai

eFood, Volume 7, Issue 5, October 2026.
Comparative assessment of different drying methods on the physicochemical properties and flavor quality of Chaenomeles speciosa. Changes in soluble sugars, organic acids, phenolic compounds and volatiles in Chaenomeles speciosa following different drying treatments were determined.
Houyu Kang, Hong Quan, Qiaojun Cai, Xiaozhong Lan, Xinbo Guo   +4 more
wiley   +1 more source

Vertical Farm Versus Glasshouse: Comparative Analysis of Growth, Antioxidants, and Volatile Profiles in Four Basil Varieties

Plant-Environment Interactions, Volume 7, Issue 5, October 2026.
ABSTRACT Global population growth and climate change are placing unprecedented pressure on food systems, threatening crop productivity and nutritional quality. Vertical farming, as a form of totally controlled‐environment agriculture, offers an innovative approach to optimizing plant growth and enhancing the quality of high‐value crops such as basil ...
Martina Pičmanová, Nick Bennett, Lidiya Babenko, Yogeswari Rajarathinam, Simon Pont, Ceri Austin, Tanveer Khan, Gordon McDougall, Derek Stewart   +8 more
wiley   +1 more source

Microextraction techniques: a critical review

, 2018
Sample preparation is an essential step in analysis, greatly influencing the reliability and accuracy of resulted the time and cost of analysis. It is widely accepted that this analytical step is the most labor-intensive and error-prone part of the ...
Maurizio Quinto
core  

Principais técnicas de preparo de amostra para a determinação de resíduos de agrotóxicos em água por cromatografia líquida com detecção por arranjo de diodos e por espectrometria de massas

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, Fábio Ferreira Gonçalves, Ednei Gilberto Primel, Osmar Damian Prestes, Manoel Leonardo Martins, Renato Zanella   +5 more
doaj   +1 more source

Evolution‐Inspired Engineering of Diterpene Biosynthesis via Chloroplast Genome Modification

Plant Biotechnology Journal, Volume 24, Issue 10, Page 5510-5525, October 2026.
ABSTRACT Terpenes constitute the largest and most structurally diverse class of plant secondary metabolites, with critical roles in plant‐environment interactions and broad industrial applications. Although nuclear genome engineering of terpene pathways has been extensively explored, chloroplast genome engineering remains largely undeveloped, with most
Alessandro Occhialini, Xinlu Chen, Samantha A. Miller, Mohammad Majdi, Ivette A. Fuentes Quispe, Gabriella King, Feng Chen   +6 more
wiley   +1 more source

New Materials for Thin-Film Solid-Phase Microextraction (TF-SPME) and Their Use for Isolation and Preconcentration of Selected Compounds from Aqueous, Biological and Food Matrices

Molecules
Determination of a broad spectrum of analytes, carried out with analytical instruments in samples with complex matrices, including environmental, biological, and food samples, involves the development of new and selective sorption phases used in ...
Witold Krumplewski, Iwona Rykowska
doaj   +1 more source

Current Trends in Fully Automated On-Line Analytical Techniques for Beverage Analysis

Beverages, 2019
The determination of target analytes in complex matrices such as beverages requires a series of analytical steps to obtain a reliable analysis. This critical review presents the current trends in sample preparation techniques based on solid phase ...
Karen Mejía-Carmona, Marcela Jordan-Sinisterra, Fernando M. Lanças   +2 more
doaj   +1 more source

Volatile Relay Biosensing and Mobile Phone Imaging for Detection of Influenza Virus

Advanced Functional Materials, Volume 36, Issue 74, 14 September 2026.
Detection of volatile organic compounds is performed via a coupled enzymatic assay with mobile phone detection of the signal. Specific application demonstrated herein is the detection of influenza virus, across multiple levels of biological complexity, up to patient‐derived samples.
Dante G. Andersen, Josefine H. Jakobsen, Mikkel Høj Nielsen, Shreyans Chatterjee, Detlef Michel, Jan Münch, Rüdiger Gross, Alexander N. Zelikin   +7 more
wiley   +1 more source