Electrospray Tandem Mass Spectrometric Study of a Furo-Furan Lactone in Heliotropium eichwaldi
نویسندگان
چکیده
منابع مشابه
Electrospray tandem mass spectrometric analysis of a dimeric conjugate, salvialeriafone and related compounds
UNLABELLED BACKGROUND Electrospray tandem mass spectrometry approach is widely used for the rapid characterization of natural products. This paper describes the gas-phased ESI-MS/MS fragmentation of abietane-type diterpenoids and their novel dimeric conjugate, salvialeriafone (1) using both positive and negative ion electrospray ionization quadropole time-of-flight mass spectrometry (ESI-QqT...
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Carotenoids have been implicated in protection of the eye from light-mediated photo-toxicity caused by free radicals. Under conditions of normal oxidative stress the carotenoids serve as protective antioxidants; however, when the oxidative stress exceeds the antioxidant capacity, carotenoids can be oxidized into numerous cleavage products. The determination and identification of oxidized carote...
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We applied low-energy collisionally activated dissociation (CAD) tandem quadrupole mass spectrometry to study the fragmentation pathways of the [M + H](+) and [M + Li](+) ions of phosphatidylcholine (PC), generated by electrospray ionization (ESI). It is revealed that the fragmentation pathways leading to loss of the polar head group and of the fatty acid substituents do not involve the hydroge...
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ژورنال
عنوان ژورنال: Journal of Chromatography & Separation Techniques
سال: 2015
ISSN: 2157-7064
DOI: 10.4172/2157-7064.1000307