Results 21 to 30 of about 37,813 (234)

Determination of Benzo(α)pyrene in Infant Formula Using High Performance Liquid Chromatography and Dispersive Liquid–Liquid Microextraction [PDF]

Pharmaceutical Sciences, 2023
Background: Benzo(α)pyrene (BaP) is one of the most familiar polycyclic aromatic hydrocarbons (PAHs) to evaluate food safety and quality and can be present in infant formulas An analytical method for the extraction and quantification of BaP in infant ...
Akram Faridi, Mahboob Nemati
doaj   +1 more source

Application of a Pillared-Layer Zn-Triazolate Metal-Organic Framework in the Dispersive Miniaturized Solid-Phase Extraction of Personal Care Products from Wastewater Samples

Molecules, 2019
The pillared-layer Zn-triazolate metal-organic framework (CIM-81) was synthesized, characterized, and used for the first time as a sorbent in a dispersive micro-solid phase extraction method. The method involves the determination of a variety of personal
Providencia González-Hernández, Ana B. Lago, Jorge Pasán, Catalina Ruiz-Pérez, Juan H. Ayala, Ana M. Afonso, Verónica Pino   +6 more
doaj   +1 more source

Applications of spatially resolved omics in the field of endocrine tumors

Frontiers in Endocrinology, 2023
Endocrine tumors derive from endocrine cells with high heterogeneity in function, structure and embryology, and are characteristic of a marked diversity and tissue heterogeneity.
Yinuo Hou, Yan Gao, Shudi Guo, Zhibin Zhang, Ruibing Chen, Xiangyang Zhang   +5 more
doaj   +1 more source

Impact of sol mixture composition on organosilica coatings formation on glass substrates

Хімія, фізика та технологія поверхні
In this study, hybrid organosilica coatings on glass substrates were synthesized using mixtures of the active polymer OH-terminated PDMS and one or more precursors, namely methyltrimethoxysilane bis(3-trimethoxysilylpropyl) amine, phenyltrimethoxysilane,
A. O. Mosendz, M. F. Zui
doaj   +1 more source

Applications of Microextraction Technology for the Analysis of Alcoholic Beverages Quality: Current Perspectives and Future Directions

Foods
Alcoholic beverages are loved by the majority of consumers because of their diverse characteristics and rich nutritional value; thus, ensuring their quality is necessary for maintaining the rapid development of the alcoholic beverage industry.
Yue Qiu, Qi Deng, Yongqing Zhang, Baoguo Sun, Wenxian Li, Wei Dong, Xiaotao Sun   +6 more
doaj   +1 more source

Hollow-Fiber Liquid-Phase Microextraction (HF-LPME) Coupled On-Line to Liquid Chromatography for the Determination of the Herbicides 2,4-Dichlorophenoxyacetic Acid and 2-Methyl-4-chlorophenoxyacetic Acid and Their Main Metabolites in Soil Samples

Separations, 2023
The use of hollow-fiber liquid-phase microextraction (HF-LPME) is very promising for the clean-up, enrichment, and analysis of chlorophenoxyacetic acid herbicides and their metabolites from environmental and biological samples.
Sònia Moret, Manuela Hidalgo, Juan M. Sanchez   +2 more
doaj   +1 more source

Lacmellea oblongata and Other Undervalued Amazonian Fruits as Functional, Antioxidant, and Antimicrobial Matrices

Antioxidants
The Amazon represents a key source of food biodiversity and is home to native fruits with high nutritional and functional potential, many of which remain largely unstudied.
Elena Coyago-Cruz, Gabriela Méndez, Ruth Escobar-Quiñonez, Marco Cerna, Jorge Heredia-Moya   +4 more
doaj   +1 more source

Non-destructive evaluation of historical paper based on pH estimation from VOC emissions [PDF]

, 2007
Volatile organic compounds (VOCs) emitted from materials during degradation can be a valuable source of information. In this work, the emissions of furfural and acetic acid from cellulose were studied using solid-phase micro-extraction (SPME) in ...
Kolar, J., Cigić, I.K., Matija StrliÄÂ, de Bruin, G., Irena Kralj Cigić, Irena Kralj Cigić, Irena Cigić, Gerrit de Bruin, Pihlar, B., Jana Kolar, Boris Pihlar, Strlič, M., Matija Strlič   +12 more
core   +1 more source

Gas-Diffusion Microextraction (GDME) Combined with Derivatization for Assessing Beer Staling Aldehydes: Validation and Application

Foods, 2021
In this work, a gas-diffusion microextraction (GDME) methodology was optimized and validated for the analysis of selected staling aldehydes (furfural (FURF), 2-methylpropanal (2-MP), 2-methylbutanal (2-MB), 3-methylbutanal (3-MB), and acetaldehyde (ACET))
Inês M. Ferreira, Daniel O. Carvalho, Marco Gomes da Silva, Luís Ferreira Guido   +3 more
doaj   +1 more source

Immunosorbents in microextraction

TrAC Trends in Analytical Chemistry, 2019
Trace analysis of target compounds from complex samples requires often a step of purification and of preconcentration before the chromatographic separation. Immunoaffinity sorbents functionalized with antibodies specific to the molecule(s) of interest appear as powerful tools for their selective extraction to obtain more reliable and sensitive ...
Pichon, Valérie, Combès, Audrey, Delaunay, Nathalie   +2 more
openaire   +2 more sources