Results 41 to 50 of about 102,497 (301)

Identification of the New Psychoactive Substance Eutylone

Fayixue Zazhi, 2022
ObjectiveTo establish a method to identify unknown sample based on the combined use of Fourier transform infrared spectroscopy （FTIR）, gas chromatography-quadrupole time-of-flight mass spectrometry （GC-QTOF-MS）, ultra-high performance liquid ...
DENG Qian-ya, SUN Wen-juan, HE Si-yang, WANG Kua-dou, CHEN Yong-sheng, WANG Wei, LIANG Chen   +6 more
doaj   +1 more source

EGMS High-resolution LC-MS data (Orbitrap)

, 2021
<p>EGMS High-resolution LC-MS data (Orbitrap), SEDENA, Myr.
Winkler, Robert
core   +1 more source

Retinyl Ester Analysis by Orbitrap Mass Spectrometry

, 2023
Retinoids are light-sensitive molecules that are normally detected by UV absorption techniques. Here we describe the identification and quantification of retinyl ester species by high-resolution mass spectrometry. Retinyl esters are extracted by the method of Bligh and Dyer and subsequently separated by HPLC in runs of 40 min.
Jansen, Jeroen W A, Haaker, Maya W, Zaal, Esther A, Helms, J Bernd   +3 more
openaire   +3 more sources

Performance evaluation of a high-field orbitrap mass analyzer [PDF]

Journal of the American Society for Mass Spectrometry, 2009
A new design of the Orbitrap mass analyzer is presented. Higher frequencies of ion oscillations and hence higher resolving power over fixed acquisition time are achieved by decreasing the gap between the inner and outer Orbitrap electrodes, thus providing higher field strength for a given voltage.
Makarov, Alexander, Denisov, Eduard, Lange, Oliver   +2 more
openaire   +2 more sources

Analysis and Evaluation of Imperfect Harmonic Potential in Orbitrap

Zhipu Xuebao
Orbitrap mass analyzer is renowned for its capability to confine charged particles stably and precisely determine their mass-to-charge ratios via a unique electrostatic field generated by spindle-shaped electrodes.
Yu-ze ZHAO, Bing-sheng TU
doaj   +1 more source

Chemical constituents, anti-hyperuricemic and anti-gouty arthritis activities of extract of Herpetospermum caudigerum

Pharmacological Research - Modern Chinese Medicine, 2022
In this paper, we studied the anti-hyperuricemia and anti-gouty arthritis effects of the ethyl acetate extract of Herpetospermum caudigerum (EH), and applied ultra-high performance liquid chromatography coupled with hybrid quadrupole-orbitrap high ...
Si-Wei Wang, Yu-Xin Li, Chun-Yan Du, Hua-Bao Fan, Xiao-Qing Wu, Xin Chen, Rui Tan, He-Zhong Jiang   +7 more
doaj   +1 more source

UHPLC-Q-Orbitrap HRMS ofDuhaldea nervosa

, 2023
the UHPLC-Q-Orbitrap HRMS of Duhaldea ...
倩 Zhao (17372815)
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

The strategy for systematic screening and identification of the absorbed constituents and metabolites in S. glabra by UHPLC–LTQ-Orbitrap

, 2016
The strategy for systematic screening and identification of the absorbed constituents and metabolites in S.
Xiong Li (112522), Xing Zeng (546054), Jin Zhao (94790), Ya Zhao (807581), Jianxing Liu (3180396), Geng Li (312002)   +5 more
core   +1 more source

Performance Investigation of Proteomic Identification by HCD/CID Fragmentations in Combination with High/Low-Resolution Detectors on a Tribrid, High-Field Orbitrap Instrument. [PDF]

PLoS ONE, 2016
The recently-introduced Orbitrap Fusion mass spectrometry permits various types of MS2 acquisition methods. To date, these different MS2 strategies and the optimal data interpretation approach for each have not been adequately evaluated.
Chengjian Tu, Jun Li, Shichen Shen, Quanhu Sheng, Yu Shyr, Jun Qu   +5 more
doaj   +1 more source