scholarly journals Positive ion and neutral fragment mass spectrometry of ketones

1974 ◽  
Author(s):  
David William Okey
Keyword(s):  
Mass Spectrometry ◽  
Neutral Fragment ◽  
Fragment Mass ◽  
Positive Ion

Determination of Mildronate in Human Plasma and Urine by UPLC–Positive Ion Electrospray Tandem Mass Spectrometry

2011 ◽  
Vol 73 (7-8) ◽  
pp. 659-665 ◽  
Author(s):  
Li-Jing Cai ◽  
Jun Zhang ◽  
Wen-Xing Peng ◽  
Rong-Hua Zhu ◽  
Jian Yang ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Tandem Mass Spectrometry ◽  
Human Plasma ◽  
Tandem Mass ◽  
Electrospray Tandem Mass Spectrometry ◽  
Human Plasma And Urine ◽  
Positive Ion

scholarly journals Molecular level comparison of water extractives of maple and oak with negative and positive ion ESI FT-ICR mass spectrometry

2019 ◽  
Vol 54 (8) ◽  
pp. 655-666 ◽  
Author(s):  
Zhongqi He ◽  
Rachel L. Sleighter ◽  
Patrick G. Hatcher ◽  
Shasha Liu ◽  
Fengchang Wu ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Molecular Level ◽  
Positive Ion ◽  
Ft Icr

scholarly journals Rapid detection of dimethyl yellow dye in curry by liquid chromatography-electrospray-tandem mass spectrometry

2010 ◽  
Vol 28 (No. 5) ◽  
pp. 427-432 ◽  
Author(s):  
F. Tateo ◽  
M. Bononi ◽  
F. Gallone
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Tandem Mass Spectrometry ◽  
Limit Of Detection ◽  
Tandem Mass ◽  
Mass Spectral ◽  
Limit Of Quantitation ◽  
Liquid Chromatography Tandem Mass ◽  
High Degree ◽  
Positive Ion

An accurate and rapid method, was devised for the identification and quantitation of dimethyl yellow dye in curry, based on liquid chromatography-tandem mass spectrometry interfaced with electrospray. Mass spectral acquisition was done in positive ion mode applying two fragmentation transitions to provide a high degree of selectivity. The extraction system provided a very high recovery (100.0% to 105.8%) and good results were obtained for the limit of detection (5 μg/kg) and limit of quantitation (16 μg/kg). The applicability of the method to identifing and quantifing the unauthorised dimethyl yellow dye in curry was demonstrated.

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