Sequence Determination of Sulfated Carrageenan-Derived Oligosaccharides by High-Sensitivity Negative-Ion Electrospray Tandem Mass Spectrometry

2006 ◽  
Vol 78 (24) ◽  
pp. 8499-8505 ◽  
Author(s):  
Guangli Yu ◽  
Xia Zhao ◽  
Bo Yang ◽  
Sumei Ren ◽  
Huashi Guan ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Tandem Mass Spectrometry ◽  
High Sensitivity ◽  
Negative Ion ◽  
Tandem Mass ◽  
Electrospray Tandem Mass Spectrometry ◽  
Sequence Determination

scholarly journals Simultaneous Determination of Flavonoids from Bamboo Leaf Extracts Using Liquid Chromatography-Tandem Mass Spectrometry

2021 ◽  
Author(s):  
Xiabing Li ◽  
Wuqun Tao ◽  
Hang Xun ◽  
Xi Yao ◽  
Jin Wang ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Tandem Mass Spectrometry ◽  
Simultaneous Determination ◽  
Negative Ion ◽  
Tandem Mass ◽  
Bamboo Species ◽  
Chromatography Tandem Mass Spectrometry ◽  
Liquid Chromatography Tandem Mass

AbstractAn analytical method for the simultaneous determination of ten major functional flavonoids (isoorientin, orientin, vitexin, isovitexin, apigenin, luteolin, tricin, quercetin, rutin, and kaempferol) in different bamboo species was developed by liquid chromatography-tandem mass spectrometry. Chromatographic separation was carried out on a reversed-phase C-18 column with acetonitrile and water as the mobile phases. Detection was performed in negative ion electrospray ionization mode using multiple reaction monitoring mode. The correlation coefficients for the calibration curves ranged from 0.9955 to 0.9997. The limit of detection ranged from 1 to 45 ng/ml. The applicability of this analytical approach was confirmed by the successful analysis of real leaf samples of four bamboo species, family Poaceae: Pleioblastus amarus (Keng) Keng f., Phyllostachys glauca McClure, Phyllostachys edullis (Carrière) J.Houz, and Indocalamus latifolius (Keng) McClure. The total flavonoid contents were 3321.09, 3095.96, 4037.33, and 2808.42 mg/kg for P. amarus, P. glauca, P. edullis, and I. latifolius, respectively. Graphical abstract

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
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