Results 101 to 110 of about 37,813 (234)

Simultaneous Determination of 23 Pyrrolizidine and Tropane Alkaloids in Infusions from Dry Edible Flowers Using Optimized μSPEed^® Microextraction Prior to Their Analysis by UHPLC-IT-MS/MS

Foods
A miniaturized solid-phase extraction of two tropane alkaloids (TAs) and twenty-one pyrrolizidine alkaloids (PAs) from infusions of dry edible flowers using optimized µSPEed® technique was developed.
Begoña Fernández-Pintor, Sonia Morante-Zarcero, Isabel Sierra   +2 more
doaj   +1 more source

Domestication‐associated reduction of methyl salicylate in tomato root and its significance for resistance to root‐knot nematode

New Phytologist, Volume 252, Issue 1, Page 414-426, October 2026.
Root volatile profiling reveals domestication‐associated variation in methyl salicylate (MeSA) accumulation in tomato. Summary Methyl salicylate (MeSA) plays diverse roles in the aerial parts of plants. By contrast, its biosynthesis and function in roots remain poorly understood.
Weijiao Wang, Manoj Sapkota, Sobhan Bahrami Zadegan, Tarek Hewezi, Esther van der Knaap, Feng Chen   +5 more
wiley   +1 more source

Microextração líquido-líquido dispersiva aliada à espectrometria de massa com plasma indutivamente acoplado empregando vaporização eletrotérmica como sistema de introdução de amostra [PDF]

, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2013.O presente trabalho versa sobre o desenvolvimento de um método analítico para a ...
Ramos, Juliano Carvalho
core  

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

Sorbent-Based Microextraction Combined with GC-MS: A Valuable Tool in Bioanalysis

Chemosensors
Sample preparation is broadly recognized as the most critical, time-consuming, and error-prone step of a bioanalytical workflow. Over the years, the development of pretreatment methods aimed at the isolation and preconcentration of the target analytes ...
Marianna Ntorkou, Constantinos K. Zacharis   +1 more
doaj   +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  

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

, 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  

Determinação de trihalometanos em amostras de refrigerantes e cervejas por microextração em fase sólida e cromatografia gasosa [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Químca, Florianópolis, 2010Uma metodologia analítica simples e rápida foi desenvolvida utilizando a microextração em ...
Santos, Marcel Silveira dos
core  

Recent Trends in Microextraction Techniques Employed in Analytical and Bioanalytical Sample Preparation

, 2018
: Sample preparation has been recognized as a major step in the chemical analysis workflow. As such, substantial efforts have been made in recent years to simplify the overall sample preparation process.
Marcello Locatelli, Abuzar Kabir, Halil Ibrahim Ulusoy   +2 more
core   +1 more source

Unexplored Bioactive, Antioxidant, Antimicrobial, and Nematicidal Potential of the Flowers, Leaves, and Roots of ‘Yellow Chicory’ (Hypochaeris sessiliflora)

Pharmaceuticals
This exploratory study compared the flowers, leaves, and roots of Hypochaeris sessiliflora to evaluate physicochemical properties, bioactive compounds, in vitro chemical antioxidant activity, antimicrobial activity, and locomotion-disrupting effects on ...
Elena Coyago-Cruz, Gabriela Méndez, Johana Zúñiga-Miranda, Alejandro Porras, Carlos Barba-Ostria, Ivanna Sarabia, Linda P. Guamán, Celina Coello, Jorge Heredia-Moya, Blanca Naranjo, María Claudia Segovia-Salcedo   +10 more
doaj   +1 more source