Results 111 to 120 of about 10,894,647 (232)

Segmental Hair Analysis of Diphenhydramine and Cyclizine Following a Single Dose

open access: yesDrug Testing and Analysis, Volume 18, Issue 7, Page 877-892, July 2026.
A single oral dose of diphenhydramine and cyclizine can be quantified in human head hair for a minimum of 5 months and, in certain cases, for up to 1 year following intake. Among 12 study participants, the measured concentrations ranged from 0 to 610 pg/mg within 1 year post‐intake.
Jan Bílek   +3 more
wiley   +1 more source

Recent Advances in Dispersive Liquid-Liquid Microextraction for Organic Compounds Analysis in Environmental Water: A Review [PDF]

open access: yes, 2012
Dispersive liquid-liquid microextraction (DLLME) is a novel microextraction technique with a great potential in sample pretreatment, which has been increasingly used for preconcentration of diverse analytes.
Chen, Lingxin, Ma, Jiping, Lu, Wenhui
core  

Comparison of Different Fruit Shapes of Lanxangia tsaoko: Differences and Relevance of Phenotypes, Antioxidant Activities, and Physicochemical Information

open access: yesFood Science &Nutrition, Volume 14, Issue 7, July 2026.
This study selected three fruit types of LT, including PCS, ES, and LFS. We examined the phenotypes and physicochemical components, volatile substances, non‐volatile substances, and FT‐NIRS characteristics of the three fruit types. Based on FT‐NIRS, an SVM model was established for the rapid identification of LT fruit types.
Dengke Fu   +6 more
wiley   +1 more source

Ameliorative Effects of Newly Developed Citrus Hybrid “Mubong” Peel Extract on Experimental Colitis and Gut Microbiota Dysbiosis

open access: yesFood Science &Nutrition, Volume 14, Issue 7, July 2026.
DSS exposure induces severe colitis, causing gut dysbiosis and mucosal inflammation driven by NF‐κB activation and spikes in pathogenic bacteria, TNF‐α, and IL‐6. However, “Mubong” Peel Extract effectively disrupts this inflammatory cascade. By suppressing NF‐κB‐dependent transcriptional activity, the extract mitigates clinical symptoms like colon ...
Awraris Derbie Assefa   +4 more
wiley   +1 more source

Recent Advances in the Use of Natural Deep Eutectic Solvents for Natural Product Sample Preparation: Focus on Purification, Characterization, and Sustainability

open access: yesJournal of Separation Science, Volume 49, Issue 7, July 2026.
ABSTRACT This review examines recent advances in the use of natural deep eutectic solvents (NaDES) for natural product sample preparation, with emphasis on extraction, purification, analytical compatibility, and sustainability. NaDES emerge as versatile, tunable, and biocompatible media that enhance the recovery and stability of diverse phytochemicals ...
Valeria Cedeño‐Fierro   +3 more
wiley   +1 more source

[Recent advances in the development and application of effervescence-assisted microextraction techniques]. [PDF]

open access: yesSe Pu, 2023
Ye HZ   +7 more
europepmc   +1 more source

Unveiling the Adsorption Mechanism of 17β‐Estradiol and 17α‐Ethinylestradiol on ZIF‐8 Via DFT Analysis

open access: yesChemistrySelect, Volume 11, Issue 26, 10 July 2026.
Molecular modeling reveals how ZIF‐8 captures 17β‐estradiol and 17α‐ethinylestradiol through noncovalent interactions. DFT, NCI, and QTAIM analyses provide mechanistic insights into adsorption and support the potential application of ZIF‐8 for endocrine‐disruptor removal from water.
Andressa Rebeca Leite Furtado   +4 more
wiley   +1 more source

Confecção de fibras de micro-extração em fase sólida (spme) e aplicaçao na determinação de produtos da degradação térmica do poli(propileno) [PDF]

open access: yes, 2003
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em Quimica.Confecção de fibras de vidro modificado recobertas com poli(butil acrilato) para uso em micro-extração em fase
Bortoluzzi, Janaína Heberle
core  

Advances in Toxins and Narcotics Determination Techniques in China During 2013

open access: yesJournal of Forensic Science and Medicine, 2015
Recently, toxin and narcotics detection techniques have been developed in China. A number of new technologies have been applied. The pretreatment technologies such as solid-phase extraction (SPE) techniques, solid-phase microextraction (SPME) techniques,
Ling Zeng   +3 more
doaj   +1 more source

Drying Method‐Dependent Variations in Phenolics, Color, and Volatile Profile of Thymus praecox subsp. skorpilii

open access: yesJournal of Food Science, Volume 91, Issue 7, July 2026.
ABSTRACT This study investigated the effects of different drying methods, including freeze drying, oven drying, shade drying, and microwave drying (360, 600, and 900 W), on the volatile profile, total phenolic content (TPC), and color characteristics of wild‐grown Thymus praecox subsp. skorpilii.
Didem Karadeniz   +2 more
wiley   +1 more source

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