Results 21 to 30 of about 50,739 (222)

Stir Bar Sorptive Extraction of Volatile Compounds in Vinegar: Validation Study and Comparison With Solid Phase Microextraction [PDF]

, 2007
Stir bar sorptive extraction was evaluated for analysing volatiles in vinegar. The procedure developed shows detection and quantitation limits, and linear ranges adequate for analysing this type of compounds. The accuracy obtained was close to 100%, with
Alves, Baltussen, Bicchi, Blanch, Buettner, Carmelo García Barroso, Demyttenaere, Durán, Edwards, Enrique Durán Guerrero, García, García-Falcón, Hayasaka, Isogai, León, Luan, Luan, Marín, Natera, Noble, Palacios, Quirós, Ramón Natera Marín, Rapp, Remedios Castro Mejías, Zalacain   +25 more
core   +2 more sources

α-AMYLASE, α-GLUCOSIDASE AND LIPASE INHIBITORY PROPERTIES AND PHYTOCHEMICAL ANALYSIS OF ENDEMIC PLANT Jurinea brevicaulis Boiss.

Trakya University Journal of Natural Sciences, 2023
Obesity, defined as New World Syndrome, causes global health problems and big economic losses. Natural products have gained increasing importance because of their antiobesity potency. The genus Jurinea Cass.
Nevin Ulaş Çolak, Ali Kandemir, Ufuk Özgen, Rezzan Aliyazıcıoğlu, Merve Badem, Şeyda Kanbolat, Sıla Sener   +6 more
doaj   +1 more source

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

SPME/GC-MS characterization of volatile compounds of Chinese traditional-chopped pepper during fermentation

International Journal of Food Properties, 2019
Fermented-chopped pepper is a traditional-fermented vegetable in China. Chopped pepper is generally made with pepper, garlic, and ginger. In present study, the volatile compounds, obtained from chopped peppers during spontaneous fermentation, were ...
Jingjing Wang, Rongrong Wang, Qian Xiao, Chengguo Liu, Fangming Deng, Hui Zhou   +5 more
doaj   +1 more source

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

Multiple Staggered Mesh Ewald: Boosting the Accuracy of the Smooth Particle Mesh Ewald Method

, 2016
The smooth particle mesh Ewald (SPME) method is the standard method for computing the electrostatic interactions in the molecular simulations. In this work, the multiple staggered mesh Ewald (MSME) method is proposed to boost the accuracy of the SPME ...
Fang, Jun, Gao, Xingyu, Wang, Han
core   +2 more sources

Bacteria isolated from Bengal cat (Felis catus × Prionailurus bengalensis) anal sac secretions produce volatile compounds potentially associated with animal signaling. [PDF]

, 2019
In social animals, scent secretions and marking behaviors play critical roles in communication, including intraspecific signals, such as identifying individuals and group membership, as well as interspecific signaling.
Cho, Adrienne W, Coil, David A, Davis, Cristina E, Eisen, Jonathan A, Ganz, Holly H, Jospin, Guillaume, McCartney, Mitchell M, Yamaguchi, Mei S, Zaw, Thant H   +8 more
core   +1 more source

Volatile Compounds in the Leaf of Plane Tree (Platanus orientalis) with Solid Phase Microextraction (SPME) Technique

International Journal of Secondary Metabolite, 2017
Plane tree belongs to Platanaceae family. There is a widespread belief that Platanus orientalis leaves (POLs) have beneficial effects on joint disorders. Therefore, many people consume POLs as tea.
Zehra Güler, Ahmet Dursun, Dilek Özkan   +2 more
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

Symmetric and antisymmetric forms of the Pauli master equation (for interaction of matter and antimatter quantum states)

, 2016
When applied to matter and antimatter states, the Pauli master equation (PME) may have two forms: time-symmetric, which is conventional, and time-antisymmetric, which is suggested in the present work.
Klimenko, A. Y.
core   +1 more source