Quantification of hydroxy groups in carbohydrates using gas-phase N2 adsorption

被引：1

作者：

Ochiai, Naoko ^{[1
]}

Murashima, Hiromori ^{[1
]}

Fujihara, Akimasa ^{[1
]}

机构：

[1] Osaka Prefecture Univ, Dept Chem, Osaka 5998531, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2020年 / 750卷

关键词：

Electrospray ionization; Ion trap; Tandem mass spectrometer; Molecular structure; MASS-SPECTROMETRY; ION MOBILITY; CLUSTER CATIONS; PHOTODISSOCIATION; SPECTROSCOPY; TRYPTOPHAN;

D O I：

10.1016/j.cplett.2020.137484

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Gas-phase N-2 adsorption of mass-selected ions of carbohydrates containing 2-5 hydroxy groups was investigated using a tandem mass spectrometer equipped with an electrospray ionization source and cold ion trap. The maximum quantities of adsorbed N-2 molecules observed in the mass spectra were consistent with the quantities of hydroxy groups in the carbohydrates. The N-2 molecules were adsorbed on the hydrogen atoms of the hydroxy groups of the carbohydrates. The hydroxy groups of the carbohydrates were quantified using gas-phase N-2 adsorption. Gas-phase N-2-adsorption mass spectrometry detects free hydroxy groups on the surface of gas-phase ions.

引用

页数：4

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