scholarly journals Mass spectrometry of organogermanium compounds - Mechanism of base peak ion formation for 1,1-dimethylgermacyclohexane.

1987 ◽  
pp. 1163-1167 ◽  
Author(s):  
Katsumi TANAKA ◽  
Masakatsu SHIMODA ◽  
Shuji TOMODA ◽  
Yoshito TAKEUCHI
Keyword(s):  
Mass Spectrometry ◽  
Base Peak ◽  
Organogermanium Compounds ◽  
Ion Formation

Ionization characteristics of glycosides by direct analysis in real time quadrupole-time of flight mass spectrometry

2017 ◽  
Vol 41 (3) ◽  
pp. 1103-1109 ◽  
Author(s):  
Hongmei Yang ◽  
Ge Gao ◽  
Yihan Wang ◽  
Jinrong Liu ◽  
Zongjun Li ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Real Time ◽  
Time Of Flight ◽  
Direct Analysis ◽  
Molecular Ion ◽  
Ion Formation ◽  
Flight Mass Spectrometry

Glycosides were ionized via various different reactions including (de)protonation, molecular ion formation, ISD fragmentation, and the formation of adducts.

scholarly journals 1 : 1 Adduct Ion Formation of Permethylated Monosaccharides with Organic Cations in FAB Mass Spectrometry

1991 ◽  
Vol 64 (4) ◽  
pp. 1243-1252 ◽  
Author(s):  
Masami Sawada ◽  
Li Ouyang ◽  
Yoshio Takai ◽  
Hitoshi Yamada ◽  
Motohiro Shizuma ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Organic Cations ◽  
Ion Formation ◽  
Fab Mass Spectrometry

Effect of droplet lifetime on where ions are formed in electrospray ionization

The Analyst ◽  
2019 ◽  
Vol 144 (1) ◽  
pp. 237-248 ◽  
Author(s):  
Zijie Xia ◽  
Evan R. Williams
Keyword(s):  
Mass Spectrometry ◽  
Electrospray Ionization ◽  
Native Mass Spectrometry ◽  
Ion Formation

The location of gaseous ion formation in electrospray ionization under native mass spectrometry conditions was investigated using theta emitters with tip diameters between 317 nm and 4.4 μm to produce droplets with lifetimes between 1 and 50 μs.

Quantitative Confirmation of Dimethoate Residues in Wheat Plants by Single Ion Mass Spectrometry

1979 ◽  
Vol 62 (4) ◽  
pp. 782-785
Author(s):  
Young W Lee ◽  
Neil D Westcott
Keyword(s):  
Mass Spectrometry ◽  
Internal Standard ◽  
Wheat Plant ◽  
Mass Spectrometric ◽  
Spectrometric Method ◽  
Plant Sample ◽  
Minimum Detectable Concentration ◽  
Mass Spectrometric Method ◽  
Base Peak ◽  
Detectable Concentration

Abstract A gas chromatographic-single ion mass spectrometric method was developed for determining dimethoate residues in wheat plants. The base peak (m/e 87) of dimethoate was chosen as the single ion peak, and methyl stearate was used as an internal standard for this analysis. The minimum detectable concentration of dimethoate by this method was about 0.1 ppm for a 20 g wheat plant sample. The recoveries of dimethoate were about 89% at 0.13 ppm and >96% at 0.5-1 ppm.

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