Results 61 to 70 of about 5,010,052 (177)

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

Desenvolvimento de metodologias analíticas para determinação de fármacos em fluidos biológicos e amostras ambientais por cromatografia líquida e gasosa [PDF]

, 2007
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em Química.Neste trabalho está apresentada a análise de fluído biológico e matriz ambiental para a determinação de fármacos ...
Suchara, Eliane Aparecida
core  

Sensitive Determination of Terazosin in Pharmaceutical Formulations and Biological Samples by Ionic-Liquid Microextraction Prior to Spectrofluorimetry

International Journal of Analytical Chemistry, 2012
An efficient and environmentally friendly sample preparation method based on the application of hydrophobic 1-Hexylpyridinium hexafluorophosphate [Hpy][PF6] ionic liquid (IL) as a microextraction solvent was proposed to preconcentrate terazosin.
Mohsen Zeeb, Mahdi Sadeghi
doaj   +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

Triazoles in the environment: An update on sample pretreatment and analysis methods

Ecotoxicology and Environmental Safety
Triazoles, due to their high bactericidal performance, have been widely used in the agricultural, clinical, and chemical industry. However, triazoles have been proven to cause endocrine-toxic and organ impairment in humans as a potentially toxic ...
Pei-chen Zou, Yuan Zhang, Yu Bian, Rong-zhu Du, Min Qian, Xue-song Feng, Cheng Du, Xin-yuan Zhang   +7 more
doaj   +1 more source

Valorization of Zingiber officinale Roscoe leaf biomass: phytotoxic potential and chemical profiling toward sustainable weed management

Journal of the Science of Food and Agriculture, Volume 106, Issue 13, Page 8189-8201, October 2026.
Abstract BACKGROUND Zingiber officinale Roscoe is widely cultivated as a spice and functional food, generating substantial amounts of aerial biomass that is commonly discarded after harvest. Within a circular‐economy framework, this study investigated the phytotoxic potential of Z.
Sara Vitalini, Orlando Innaurato, Shadab Faramarzi, Alessandro Palmioli, Stefania Garzoli, Valentina Vaglia, Cristina Airoldi, Marcello Iriti   +7 more
wiley   +1 more source

Analysis of triazine herbicides using an up-and-down-shaker-assisted dispersive liquid-liquid microextraction coupled with gas chromatography-mass spectrometry

, 2017
In dispersive liquid-liquid microextraction, a few hundred microliters to a few milliliters of water-miscible dispersive solvent are commonly used to assist emulsification in aqueous samples.
Chen, Pai-Shan;Haung, Wan-Yun;Huang, Shang-Da, 陳珮珊   +1 more
core   +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

Alternativas verdes para o preparo de amostra e determinação de poluentes fenólicos em água Green alternatives for sample preparation and determination of phenolic pollutants in water

Química Nova, 2010
The restricted availability of water sources suitable for consumption and high costs for obtaining potable water has caused an increase of the conscience concerning the use.
Guilherme Dias Rodrigues, Luis Henrique Mendes da Silva, Maria do Carmo Hespanhol da Silva   +2 more
doaj   +1 more source