Results 41 to 50 of about 91,527 (300)

Determination of Nicotine and Cotinine in Human Blood by Dried Blood Spot-LC-Orbitrap MS Technique [PDF]

Journal of Analytical & Pharmaceutical Research, 2016
Background Dried blood spot DBS have been applied in many application as alternate analytical solution for limitations and challenges in conventional methods and validated methods demand by DBS technique are still required in nicotine Nic research area Aim The development and validation of a new bioanalytical method for simultaneous ...
Awwad, Ahmad Abu, Schmitz, Oliver J., Arafat, Tawfiq   +2 more
openaire   +1 more source

Systematic Profiling of the Multicomponents and Authentication of Erzhi Pill by UHPLC/Q-Orbitrap-MS Oriented Rapid Polarity-Switching Data-Dependent Acquisition and Selective Monitoring of the Chemical Markers Deduced from Fingerprint Analysis

Molecules, 2018
The analytical platform UHPLC/Q-Orbitrap-MS offers a solution to quality investigation of TCM with high definiteness. Using Erzhi Pill (EZP) as a case, we developed UHPLC/Q-Orbitrap-MS based approaches to achieve systematic multicomponent identification ...
Li Jia, Lingling Fu, Xiaoyan Wang, Wenzhi Yang, Hongda Wang, Tiantian Zuo, Chunxia Zhang, Ying Hu, Xiumei Gao, Lifeng Han   +9 more
doaj   +1 more source

Identification of the growth hormone-releasing hormone analogue [Pro1, Val14]-hGHRH with an incomplete C-term amidation in a confiscated product [PDF]

, 2014
A
Deventer, Koen, Esposito, Simone, Van Eenoo, Peter   +2 more
core   +2 more sources

Multianalyte LC-MS-based methods in doping control: what are the implications for doping athletes? [PDF]

, 2016
Over the last 50 years, the list of doping substances and methods has been progressively expanding, being regularly reviewed by the international antidoping authorities (formerly the Medical Commission of the International Olympic Committee, and ...
Botre', Francesco, de la Torre, Xavier, Mazzarino, Monica   +2 more
core   +1 more source

PFAS residue analysis in fish and fish feed by applying a modified QuEChERS method in combination with LC-HRMS detection

Emerging Contaminants
A targeted method for the quantitative determination of PFAS residues in fish feed and marine aquaculture fish species was developed and validated in the current study.
Ourania Koloka, Vasiliki Boti, Dimitra Hela, Triantafyllos Albanis, Ioannis Konstantinou   +4 more
doaj   +1 more source

HR-LC-ESI-Orbitrap-MS-Based Metabolic Profiling Coupled with Chemometrics for the Discrimination of Different Echinops spinosus Organs and Evaluation of Their Antioxidant Activity

Antioxidants, 2022
This study aimed to assess and correlate the phenolic content and the antioxidant activity of the methanol extracts of the stems, roots, flowers, and leaves of Echinops spinosus L. from north-eastern Algeria.
Amel Bouzabata, Paola Montoro, Katarzyna Angelika Gil, Sonia Piacente, Fadia S. Youssef, Nawal M. Al Musayeib, Geoffrey A. Cordell, Mohamed L. Ashour, Carlo Ignazio Giovanni Tuberoso   +8 more
doaj   +1 more source

Camalexin Quantification in Arabidopsis thaliana Leaves Infected with Botrytis cinerea [PDF]

, 2015
Phytoalexins are heterogeneous low molecular mass secondary metabolites with antimicrobial activity produced in response to pathogen invasion attempts at the infection site and represent an important part of the plant defense repertoire.
FABBRI, Claudia, GIGLI BISCEGLIA, NORA, GRAVINO, MATTEO, MATTEI, Maria Benedetta, PONTIGGIA, Daniela, SAVATIN, DANIEL VALENTIN   +5 more
core   +1 more source

High Resolution Mass Spectrometry Fragmentation Rules of Etomidate and Its Structural Analogues

Fayixue Zazhi
ObjectiveTo explore the characteristic fragment ions, ion abundance ratios and mass spectrometry fragmentation rules of etomidate and its structural analogues by using gas chromatography-quadrupole/orbitrap mass spectrometry （GC-Q/Orbitrap MS） and liquid
FAN Xian-yu, ZHU Xue-yan, WANG Xin, XIANG Ping, ZHAO Jun-bo   +4 more
doaj   +1 more source

Rapid Identification and Systematic Mechanism of Flavonoids from Potentilla freyniana Bornm. Based on UHPLC-Q-Exactive Orbitrap Mass Spectrometry and Network Pharmacology

International Journal of Analytical Chemistry, 2021
Potentilla freyniana Bornm. (P. freyniana), belonging to the family Rosaceae, has been used as a folk medicine in China. However, as we know, the constituents and the systematic elucidation of the mechanism were not fully investigated.
Wei Cai, Kailin Li, Shihan Qin, Pei Xiong, Jie Peng, Silin Shi, Zaiqi Zhang   +6 more
doaj   +1 more source

Datasets from label-free quantitative proteomic analysis of human glomeruli with sclerotic lesions

Data in Brief, 2015
Human glomeruli with intermediate (i-GS) and advanced (GS) sclerotic lesions as well as the normal control (Nor) were captured from laser microdissection, digested by trypsin and subjected to shotgun LC-MS/MS analysis (LTQ-Orbitrap XL).
Ying Zhang, Bo Xu, Naohiko Kinoshita, Yutaka Yoshida, Masayuki Tasaki, Hidehiko Fujinaka, Sameh Magdeldin, Eishin Yaoita, Tadashi Yamamoto   +8 more
doaj   +1 more source