Results 21 to 30 of about 21,560 (147)

Comparison of different approaches for direct coupling of solid-phase microextraction to mass spectrometry for drugs of abuse analysis in plasma

Journal of Pharmaceutical Analysis, 2023
The direct coupling of solid-phase microextraction (SPME) to mass spectrometry (MS) (SPME-MS) has proven to be an effective method for the fast screening and quantitative analysis of compounds in complex matrices such as blood and plasma. In recent years,
Wei Zhou, Martyna N. Wieczorek, Runshan Will Jiang, Janusz Pawliszyn   +3 more
doaj   +1 more source

Chemical characterization of volatile organic compounds on animal farms

Veterinární Medicína, 2008
More than one hundred volatile organic substances were identified by gas chromatography and mass spectrometry (GC/MS) in the indoor and outdoor air, stable and farm road dust and farm soil samples from two pig and cattle farms in the South Moravian ...
M. Ciganek, J. Neca
doaj   +1 more source

Identification of volatile compounds in several meat and bone broth using Solid Phase Micro Extraction-Gas Chromatography Mass Spectrometry (SPME-GCMS) for initial detection of Halal and Non-Halal Food [PDF]

Journal of Pure and Applied Chemistry Research, 2023
The development of techniques for detecting halal and non-halal animal meat is of great importance as a useful tool for monitoring and assuring food quality for Muslim.
Diana Candra Dewi, Chanif Mahdi, Hermin Sulistyarti, Aulani`am   +3 more
doaj  

Volatile components of different periods and different parts of Dendrobium chrysotoxum based on GC-MS

Guangxi Zhiwu
In order to investigate the characteristics and release pattern of volatile components during flowering of Dendrobium chrysotoxum. In this study, solid-phase microextraction(SPME)combined with GC-MS was used to detect the volatile components of D ...
ZHAO Ruijing1,2, CAO Hua2, LU Lin2, LI Limei3, SHEN Dingcai3, LI Han2*, LI Donghui1*
doaj   +1 more source

Development and Validation of a HS-SPME-GC-SIM-MS Multi-Method Targeting Hop-Derived Esters in Beer

, 2021
Hop-derived esters contribute to beer flavor and changes in the ester spectrum are believed to be an important driver in the flavor–instability of hoppy beers.
Christian Schubert (330503), Laura Knoke (9258626), Sarah Thörner (7879400), Nils Rettberg (7879406)   +3 more
core   +1 more source

Investigation of Kerosene used as Fire Accelerant Remaining on Different Kinds of Fabrics

Arab Journal of Forensic Sciences & Forensic Medicine, 2019
In arson cases, the detection and identification of fire accelerants is of high importance for elucidation of such crimes. The present study aims to investigate the remaining fraction of kerosene hydrocarbons impregnated on four kinds of textiles (nylon,
Abdulrhman M. Dhabbah
doaj   +1 more source

A Hybrid Stainless-Steel SPME Microneedle Electrode Sensor for Dual Electrochemical and GC-MS Analysis

Sensors, 2023
A mechanically robust in-tube stainless steel microneedle solid phase microextraction (SPME) platform for dual electrochemical and chromatographic detection has been demonstrated.
Samuel M. Mugo, Scott V. Robertson, Marika Wood   +2 more
doaj   +1 more source

Data_Sheet_1_The Antimicrobial Activity and Characterization of Bioactive Compounds in Peganum harmala L. Based on HPLC and HS-SPME-GC-MS.DOCX

, 2022
Peganum harmala L. is a perennial herb of the Tribulus family and its aerial parts and seeds can be used as medicine in the traditional medicine of China.
Yingqian Liu (5821829), Zhigang Yang (547420), Junxia An (9423876), Jianguo Fang (1375440), Zhijun Zhang (315079), Ningning Wang (560944)   +5 more
core   +1 more source

Methoxypyrazines in Sauvignon blanc wines, detection of addition of artificial aroma

Czech Journal of Food Sciences, 2009
Methoxypyrazines are the principal aroma components responsible for the vegetative and herbaceous green bell-pepper flavour of Sauvignon blanc wines produced in Moravia.
A. Rajchl, H. Čížková, M. Voldřich, D. Lukešová, Z. Panovská   +4 more
doaj   +1 more source

A New Perspective on SPME and SPME Arrow: Formaldehyde Determination by On-Sample Derivatization Coupled with Multiple and Cooling-Assisted Extractions

Molecules, 2023
Formaldehyde (FA) is a toxic compound and a human carcinogen. Regulating FA-releasing substances in commercial goods is a growing and interesting topic: worldwide production sectors, like food industries, textiles, wood manufacture, and cosmetics, are ...
Stefano Dugheri, Giovanni Cappelli, Niccolò Fanfani, Jacopo Ceccarelli, Giorgio Marrubini, Donato Squillaci, Veronica Traversini, Riccardo Gori, Nicola Mucci, Giulio Arcangeli   +9 more
doaj   +1 more source