Results 111 to 120 of about 10,737,248 (259)

Rapid, Specific Determination of Iodine and Iodide by Combined Solid-Phase Extraction/Diffuse Reflectance Spectroscopy [PDF]

, 2002
A new, rapid methodology for trace analysis using solid-phase extraction is described. The two-step methodology is based on the concentration of an analyte onto a membrane disk and on the determination by diffuse reflectance spectroscopy of the amount of
Arena, Matteo, Fritz, James S., Porter, Marc D.   +2 more
core   +1 more source

Principles and calibration of solid phase microextraction fibre (passive sampler) for measurements of airflow and air infiltration in dwellings [PDF]

, 2010
Tracer gas techniques have been the most appropriate experimental method of determining airflows and ventilation rates in houses. However, current trends to reduce greenhouse gas effects have prompted the need for alternative techniques, such as passive ...
Essah, Emmanuel Adu
core   +1 more source

Alternative Green Extraction Phases Applied to Microextraction Techniques for Organic Compound Determination

Separations, 2019
The use of green extraction phases has gained much attention in different fields of study, including in sample preparation for the determination of organic compounds by chromatography techniques.
E. Carasek, Gabrieli Bernardi, S. D. do Carmo, C. S. Vieira   +3 more
semanticscholar   +1 more source

Butia catarinensis as a Sustainable Ingredient in Brazilian Mead: Chemical Properties, Volatile Composition, Sensory Profile and Consumer Acceptance

Journal of Food Science, Volume 91, Issue 4, April 2026.
ABSTRACT Mead is a fermented alcoholic beverage traditionally produced with honey, water, and yeast, with possible variations through the addition of fruits or spices. Butia catarinensis is a native Brazilian fruit with high sensory appeal, traditionally used in cachaça but underexplored in fermented beverages.
Rodrigo Ribeiro Arnt Sant'Ana, Ana Letícia Andrade Ferreira, Rafaela Diogo Silveira, Juliane Elisa Welke, Bruna Rafaela da Silva Monteiro Wanderley, Luciano Valdemiro Gonzaga, Adriane Costa dos Santos, Ana Carolina Oliveira Costa, Renata Dias de Mello Castanho de Amboni, Carlise Beddin Fritzen‐Freire   +9 more
wiley   +1 more source

New Materials for Thin-Film Solid-Phase Microextraction (TF-SPME) and Their Use for Isolation and Preconcentration of Selected Compounds from Aqueous, Biological and Food Matrices

Molecules
Determination of a broad spectrum of analytes, carried out with analytical instruments in samples with complex matrices, including environmental, biological, and food samples, involves the development of new and selective sorption phases used in ...
Witold Krumplewski, Iwona Rykowska
doaj   +1 more source

Chromatography of wine [PDF]

, 2013
The objectives of the review are the collection, concise description and evaluation of the various chromatographic technologies applied for the separation and quantitative determination of macro- and microcomponents present in ...
Cserháti, Tibor, Szőgyi, Mária
core  

Factors Influencing Undesirable Sensory Properties in Protein Hydrolysates and Remediation Strategies for Food Applications

Journal of Food Science, Volume 91, Issue 4, April 2026.
ABSTRACT Enzymatic hydrolysis is used to produce protein hydrolysates from animal‐ and plant‐based sources, which are widely utilized in industry due to their nutritional, functional, and bioactive properties. However, these hydrolysates can exhibit unattractive sensory properties, such as off‐flavors or off‐odors, which limit their use in food ...
Tejaswini R. B. Ramakrishna, Tone Aspevik, Birthe Vang, Kjersti Lian, Charlotte Jacobsen, Volha Shapaval, Pål Puntervoll, Gro E. K. Bjerga   +7 more
wiley   +1 more source

Microextraction techniques [PDF]

Analytical and Bioanalytical Chemistry, 2014
M, Valcárcel, S, Cárdenas, R, Lucena
openaire   +2 more sources

Microextraction by Packed Sorbent (MEPS) and Solid-Phase Microextraction (SPME) as Sample Preparation Procedures for the Metabolomic Profiling of Urine

Metabolites, 2014
For a long time, sample preparation was unrecognized as a critical issue in the analytical methodology, thus limiting the performance that could be achieved.
Catarina Silva, Carina Cavaco, Rosa Perestrelo, Jorge Pereira, José S. Câmara   +4 more
doaj   +1 more source

Application of Receiver Operating Characteristic (ROC) Curves for Explosives Detection Using Different Sampling and Detection Techniques [PDF]

, 2013
Reported for the first time are receiver operating characteristic (ROC) curves constructed to describe the performance of a sorbent-coated disk, planar solid phase microextraction (PSPME) unit for non-contact sampling of a variety of volatiles. The PSPME
Almirall, Jose, Fan, Wen, Raeva, Anna, Young, Mimy   +3 more
core   +2 more sources