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Ionization of organic molecules with metal ions formed in the laser plasma

期刊: JOURNAL OF MASS SPECTROMETRY, 2021; 56 (5)

A laser plasma ion source was used to ionize volatile organic compounds in a gas sample. The plasma was generated on a metal target in the intermediat......

Screening the Q-markers of TCMs from RA rat plasma using UHPLC-QTOF/MS technique for the comprehensive evaluation of Wu-Wei-Wen-Tong Capsule

期刊: JOURNAL OF MASS SPECTROMETRY, 2021; 56 (5)

The appropriate selection of quality marker (Q-marker) for performing the comprehensive quality evaluation of traditional Chinese medicines (TCMs) has......

Determination of minor isotope ratios of individual uranium particles by accelerator mass spectrometry

期刊: JOURNAL OF MASS SPECTROMETRY, 2021; 56 (5)

The determination of uranium isotope ratios in uranium particle is an essential technique in the analysis of environmental samples for nuclear safegua......

Characterisation of copal resin and amber by negative-ion electrospray ionisation Fourier transform ion cyclotron resonance mass spectrometry

期刊: JOURNAL OF MASS SPECTROMETRY, 2021; 56 (3)

Copal resin and amber from Columbia were analysed by negative-ion electrospray ionisation (ESI) Fourier transform ion cyclotron resonance mass spectro......

Evaluation of three sample preparation methods for the identification of clinical strains by using two MALDI-TOF MS systems

期刊: JOURNAL OF MASS SPECTROMETRY, 2021; 56 (2)

Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) has revolutionized the microbial identification, especiall......

Chemical comparison of the raw and processed Farfarae Flos by liquid chromatography-mass spectrometry based metabolomic approach

期刊: JOURNAL OF MASS SPECTROMETRY, 2021; 56 (2)

Farfarae Flos (FF) has been used in China for a long time as an anti-tussive and expectorant herbal drugs, and it was usually honey-fried FF (HFF). To......

Rapid detection of pesticides in honey by solid-phase micro-extraction coupled with electrospray ionization mass spectrometry

期刊: JOURNAL OF MASS SPECTROMETRY, 2020; 55 (2)

Detection of pesticide residues in food samples is important for safeguarding food quality and safety. Conventional approaches for detection of pestic......

Multiclass and multiresidue screening of veterinary drugs and pesticides in infant formula using Quadrupole-Orbitrap MS with PRM scan mode

期刊: JOURNAL OF MASS SPECTROMETRY, 2020; 55 (3)

A multiclass and multiresidue method for screening veterinary drugs and pesticides in infant formula was developed and validated using ultrahigh-perfo......

Fragmentation pathways of protonated coumarin by ESI-QE-Orbitrap-MS/MS coupled with DFT calculations

期刊: JOURNAL OF MASS SPECTROMETRY, 2020; 55 (5)

Coumarin is one of the basic structures of naturally oxygen heterocyclic compound, which was investigated in this paper for its gas-phase fragmentatio......

Characterization of chemical components in the Guanxinning injection by liquid chromatography-mass spectrometry

期刊: JOURNAL OF MASS SPECTROMETRY, 2020; 55 (12)

Guanxinning injection (GXNI) is widely used in the treatments of cerebral thrombosis, cerebral hemorrhage, sequela, coronary disease, stenocardia, arr......

Matter-wave interference and deflection of tripeptides decorated with fluorinated alkyl chains

期刊: JOURNAL OF MASS SPECTROMETRY, 2020; 55 (6)

Studies of neutral biomolecules in the gas phase allow for the study of molecular properties in the absence of solvent and charge effects, thus comple......

Diagnostic fragmentation-assisted mass spectral networking coupled with in silico dereplication for deep annotation of steroidal alkaloids in medicinal Fritillariae Bulbus

期刊: JOURNAL OF MASS SPECTROMETRY, 2020; 55 (9)

Fully understanding the chemicals in an herbal medicine remains a challenging task. Molecular networking (MN) allows to organize tandem mass spectrome......

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