Results 81 to 90 of about 27,884 (228)

Environmental Applications of Solid Phase Microextraction Techniques [PDF]

, 2015
Miniaturization is a strategy employed in sample preparation that has gained much prominence in recent years due to the need to develop more efficient procedures that consume less solvent and time. The analysis of important families of contaminants, such
Torres Padrón, María Esther, Sosa Ferrera, María Zoraida, Montesdeoca Esponda, Sarah, Santana Rodríguez, José Juan   +3 more
core   +1 more source

Evolution‐Inspired Engineering of Diterpene Biosynthesis via Chloroplast Genome Modification

Plant Biotechnology Journal, EarlyView.
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 all ...
Alessandro Occhialini, Xinlu Chen, Samantha A. Miller, Mohammad Majdi, Ivette A. Fuentes Quispe, Gabriella King, Feng Chen   +6 more
wiley   +1 more source

Analysis of possible sources and pathways of methyl tertiary-butyl ether (MTBE) in the aquatic environment [PDF]

, 2006
In the present study possible sources and pathways of the gasoline additive methyl tertiary-butyl ether (MTBE) in the aquatic environment in Germany were investigated.
Kolb, Axel
core  

Microfluidic Flow-through SPME Chip for Online Separation and MS Detection of Multiple Analyses in Complex Matrix

Micromachines, 2020
Simplifying tedious sample preparation procedures to improve analysis efficiency is a major challenge in contemporary analytical chemistry. Solid phase microextraction (SPME), a technology developed for rapid sample pretreatment, has flexibility in ...
Yujun Chen, Tao Gong, Cilong Yu, Xiang Qian, Xiaohao Wang   +4 more
doaj   +1 more source

Volatile Organic Compounds Emitted by Fungi Have Substantial Effects on Growth and Disease Resistance in Arabidopsis thaliana

Plant, Cell &Environment, EarlyView.
ABSTRACT Volatile organic compounds (VOCs) emitted by certain fungi have previously been suggested to modulate plant development and their response to stresses. While some fungal species, such as Trichoderma harzianum, are known to produce VOCs, the production of VOCs in other phylogenetically divergent species, such as Mucor mucedo, was previously ...
Sara Yugueros, Asier Largo‐Gosens, Cristina Úbeda, Cristina Hernández‐Fernández, Alba Manga‐Robles, Diego Rebaque, Antonio Encina, Hugo Mélida   +7 more
wiley   +1 more source

Avaliação da qualidade dos sedimentos por meio e biomarcadores geoquímicos e elementos-traço em amostras do estuário do Rio Itajaí-Açu e determinação de contaminantes em matrizes de resíduos sólidos [PDF]

, 2014
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2014.O sistema estuarino do rio Itajaí-Açu, localizado na região Sul do Brasil, é afetado por ...
Frena, Morgana
core  

Schiff Base‐UiO66 Composite‐based Dispersive Micro Solid‐Phase Extraction of Pesticides From Fruit Juices Combined With Dispersive Liquid‐Liquid Microextraction Prior to Gas Chromatography‐Flame Ionisation Detection

Analytical Science Advances, Volume 7, Issue 2, December 2026.
ABSTRACT A dispersive micro solid‐phase extraction method was introduced using a Schiff base‐UiO66 nanocomposite as the adsorbent in the extraction of multi‐class pesticide residues in pear, cherry, grape, and apricot juices. The extraction procedure was hyphenated with a liquid‐phase microextraction procedure, providing a high preconcentration factor ...
Behnam Hosseininezhad, Mahdi Bomorovat, Mahboob Nemati, Mir Ali Farajzadeh, Ramin Atazadeh, Mohammad Reza Afshar Mogaddam   +5 more
wiley   +1 more source

Optimalization of the solid phase microextraction method for determination of persistent pollutants [PDF]

, 2018
Tato bakalářská práce se zabývá optimalizací metody mikroextrakce tuhou fází pro stanovení perzistentních polutantů. Teoretická část obsahuje všeobecný přehled stěžejních poznatků a informací z oboru analytické chemie z oblasti zájmu této závěrečné práce.
Hykyš, Petr
core   +1 more source

Valproic acid extraction methods in human samples for gas chromatography analysis: a review

Drug Analytical Research
Valproic acid (VPA) is widely used as an important drug for the treatment of epilepsy, seizures, bipolar disorders, and migraines. However, its narrow therapeutic range lead to risks of unintentional poisoning and potential suicide.
Juliana Blume de Oliveira, Bruno Pereira dos Santos, Marcelo Arbo   +2 more
doaj   +1 more source

Optimized SPE‐HPLC‐FLD Method for the Simultaneous Determination of Olaparib, Propranolol, and Furosemide in Human Urine

Biomedical Chromatography, Volume 40, Issue 8, August 2026.
ABSTRACT Olaparib belongs to the PARP inhibitors and is widely used as an anticancer drug. Due to frequent side effects, it is usually co‐administered with an antihypertensive, such as propranolol and/or an antidiuretic, such as furosemide. In this study, a highly sensitive HPLC‐FLD method was developed for the simultaneous determination of the three ...
Georgios Kamaris, Antonia Kalagia, Catherine K. Markopoulou   +2 more
wiley   +1 more source