Results 91 to 100 of about 10,894,647 (232)
Novas estratégias de otimização para a técnica de SPME e SPME com recobrimento internamente refrigerado [PDF]
, 2012 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2011Esta Tese apresenta três novas estratégias de otimização, sendo duas aplicadas à técnica de ...
Martendal, Edmar
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Green and Rapid Determination of Phthalates in Mineral Water From Virgin and Recycled PET Bottles
Journal of Mass Spectrometry, Volume 61, Issue 8, August 2026.ABSTRACT This study investigates the presence and quantification of phthalates released into mineral waters from virgin and recycled polyethylene terephthalate (PET) bottles. A green, solvent‐free analytical method based on solid‐phase microextraction (SPME) coupled with gas chromatography–mass spectrometry (GC/MS) was developed and validated to detect
Claudia Lino +4 more
wiley +1 more source
Evaluating Stabilizers Effects on Aroma Release Dynamics in Ice Cream: A PTR‐ToF‐MS Analysis
Journal of Mass Spectrometry, Volume 61, Issue 8, August 2026.ABSTRACT Capturing the dynamic volatilome of frozen matrices during phase transitions remains an analytical challenge, typically requiring invasive sampling. This study employs proton transfer reaction time‐of‐flight mass spectrometry (PTR‐ToF‐MS) as a rapid, noninvasive technique that directly samples headspace volatiles without preconcentration to ...
Camila Cossettin Teixeira +6 more
wiley +1 more source
Microextraction techniques: a critical review [PDF]
The quality of the sample preparation procedure will determine the quality of the data produced and, consequently, the ability to obtain reliable and affordable data.
Maurizio Quinto
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Estudo sobre a fotodegradação de compostos orgânicos voláteis por microextração em fase sólida [PDF]
, 2013 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2010Neste trabalho foi inicialmente realizada uma análise qualitativa dos compostos orgânicos ...
Susin, Renato Cesar
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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 +5 more
doaj +1 more source
Effect of carcass storage condition on searcher efficiency trials for conservation detection dogs
The Journal of Wildlife Management, Volume 90, Issue 6, August 2026.We investigated the influence of storage condition on bat carcass odor through chemical analysis. Additionally, we tested the detectability of 3 carcass storage conditions through searcher efficiency trials with conservation detection dogs. Only 20% of the chemicals observed were shared across all 4 carcass storage conditions.
Anna Ciecka +3 more
wiley +1 more source
Green solvent microextraction [PDF]
Nowadays, green analytical chemistry plays an important role in the field of analytical chemistry to minimize the use of solvents and other factors (e.g., time for preparation of each sample, sample volume, and solvent volume), which could increase ...
R. Pirro +13 more
core +1 more source
Latest trends, green aspects, and innovations in liquid-phase based microextraction techniques: a review [PDF]
, 2016 Liquid-phase microextraction (LPME) methods including single-drop microextraction (SDME), hollow-fiber LPME (HF-LPME), and dispersive liquid-liquid microextraction (DLLME) have in the very short time since their invention grabbed the attention of ...
YILMAZ, Erkan, SOYLAK, Mustafa
core +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 +2 more
doaj +1 more source