Results 1 to 10 of about 1,423,552 (167)

Simultaneous Determination of Structurally Diverse Compounds in Different Fangchi Species by UHPLC-DAD and UHPLC-ESI-MS/MS

Molecules, 2013
Two bisbenzylisoquinoline alkaloids, two morphine alkaloids, one aporphine alkaloid, syringaresinol and aristolochic acid І were selected as marker compounds and simultaneously analyzed using an ultra-high pressure liquid chromatography-diode array ...
Jongki Hong
exaly   +3 more sources

Combination of GC-MS, UHPLC-MS, and NMR Reveals Metabolic Differences Between the Oleo-Gum Resins of Ferula tadshikorum Pimenov and F. foetida (Bunge) Regel [PDF]

Plants
Background: Central Asia is a key center of diversity for Ferula species, including Ferula foetida and Ferula tadshikorum, which are important but insufficiently characterized sources of oleo-gum resins. Methods: The oleo-gum resins of F.
Nilufar Z. Mamadalieva, Michal Šoral, Olim K. Khojimatov, Davlat K. Akramov, Andrej Frolov, Ludger A. Wessjohann   +5 more
doaj   +2 more sources

Determination of 69 Pesticide Residues in 42 Batches of Platycodonis Radix and Dietary Risk Assessment Using Combined QuEChERS with GC-MS/MS and UHPLC-MS/MS [PDF]

Foods
This study aimed to establish a rapid analytical method for the determination of 69 pesticide residues in Platycodonis Radix using GC-MS/MS and UHPLC-MS/MS, as well as carry out a dietary risk assessment on 42 batches of Platycodonis Radix samples ...
Jing Ma, Xinyue Qiu, Suiqing Chen, Haibo Wang, Xiaoya Sun   +4 more
doaj   +2 more sources

A Strategy for Identification and Structural Characterization of Compounds from Plantago asiatica L. by Liquid Chromatography-Mass Spectrometry Combined with Ion Mobility Spectrometry

Molecules, 2022
Plantago asiatica L. (PAL) as a medicinal and edible plant is rich in chemical compounds, which makes the systematic and comprehensive characterization of its components challenging.
Hongxue Gao, Zhiqiang Liu, Fengrui Song, Junpeng Xing, Zhong Zheng, Shu Liu   +5 more
doaj   +1 more source

Dynamic profiling of intact glucosinolates in radish by combining UHPLC-HRMS/MS and UHPLC-QqQ-MS/MS

Frontiers in Plant Science, 2023
Glucosinolates (GSLs) and their degradation products in radish confer plant defense, promote human health, and generate pungent flavor. However, the intact GSLs in radish have not been investigated comprehensively yet.
Chenghuan Yan, Chenghuan Yan, Yan Huang, Yan Huang, Shuting Zhang, Shuting Zhang, Lei Cui, Lei Cui, Zhenbiao Jiao, Zhenbiao Jiao, Zhaoxin Peng, Xiaozhou Luo, Yun Liu, Zhengming Qiu, Zhengming Qiu   +14 more
doaj   +1 more source

Determination of Antiviral Drugs and Their Metabolites Using Micro-Solid Phase Extraction and UHPLC-MS/MS in Reversed-Phase and Hydrophilic Interaction Chromatography Modes

Molecules, 2021
Two new ultra-high performance liquid chromatography (UHPLC) methods for analyzing 21 selected antivirals and their metabolites were optimized, including sample preparation step, LC separation conditions, and tandem mass spectrometry detection.
Luboš Fical, Maria Khalikova, Hana Kočová Vlčková, Ivona Lhotská, Zuzana Hadysová, Ivan Vokřál, Lukáš Červený, František Švec, Lucie Nováková   +8 more
doaj   +1 more source

Rapid microwave synthesis of MOF microrods: Dispersive SPE coupled with UHPLC-MS/MS to determine fluoroquinolones in honey.

Talanta: The International Journal of Pure and Applied Analytical Chemistry, 2023
A novel sorbent Cu-S metal-organic framework (MOF) microrods was prepared for dispersive solid-phase extraction via microwave synthesis and used to determine 12 fluoroquinolones (FQs) in honey samples employing ultrahigh-performance liquid chromatography-
Wei-Ting Jung, Yi-Hsuan Hsieh, Yen-Jung Kuo, Yuan-Hsiang Yu, Yen-Hsiang Liu, Kuang-Lieh Lu, Hui-Ling Lee   +6 more
semanticscholar   +1 more source

Analytical validation of a novel UHPLC-MS/MS method for 19 antibiotics quantification in plasma: Implementation in a LC-MS/MS Kit.

Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie, 2023
BACKGROUND Therapeutic drug monitoring (TDM) for antibiotic drugs represents a consolidated practice to optimize the effectiveness and to limit the toxicity of specific drugs by guiding dosage adjustments. The comparison of TDM results with drug-specific
J. Mula, Francesco Chiara, A. Manca, A. Palermiti, Domenico Maiese, J. Cusato, M. Simiele, F. D. De Rosa, G. Di Perri, A. de Nicolò, A. D'Avolio   +10 more
semanticscholar   +1 more source

Recent Developments Toward Integrated Metabolomics Technologies (UHPLC-MS-SPE-NMR and MicroED) for Higher-Throughput Confident Metabolite Identifications

Frontiers in Molecular Biosciences, 2021
Metabolomics has emerged as a powerful discipline to study complex biological systems from a small molecule perspective. The success of metabolomics hinges upon reliable annotations of spectral features obtained from MS and/or NMR. In spite of tremendous
Rajarshi Ghosh, Rajarshi Ghosh, Rajarshi Ghosh, Rajarshi Ghosh, Guanhong Bu, Guanhong Bu, Brent L. Nannenga, Brent L. Nannenga, Lloyd W. Sumner, Lloyd W. Sumner, Lloyd W. Sumner, Lloyd W. Sumner   +11 more
doaj   +1 more source

Analysis of a broad range of carbonyl metabolites in exhaled breath by UHPLC-MS

Analytical Chemistry, 2023
Analysis of volatile organic compounds (VOCs) in exhaled breath has shown great potential for disease detection including lung cancer, infectious respiratory diseases, and chronic obstructive pulmonary disease.
Zhenzhen Xie, J. D. Morris, S. Mattingly, Saurin R. Sutaria, Jia-Peng Huang, M. Nantz, Xiao-An Fu   +6 more
semanticscholar   +1 more source