Analysis method for five flavonoid glycosides in blood plasma and application of five flavonoid glycosides in pharmacokinetics
A technology of blood plasma and baicalin, applied in the field of modern Chinese medicine application, to achieve the effect of accurate detection results and high sensitivity
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Embodiment 1
[0123] LC-MS / MS conditions
[0124] Column: ZORBAX SB-C 18 (150×2.1mm, 5μm, Agilent)
[0125] Pre-column: Security Guard-C 18 (4.0mm×3.0mm i.d, 5μm, Phenomenex)
[0126] Mobile phase: 0.1% formic acid water (A)-acetonitrile (B), gradient elution program: 0~3.0min, 24%B; 3.0~3.1min, 24%B–40%B; 3.1~10.0min, 40%B B-60% B.
[0127] Column temperature: 25°C
[0128] Flow rate: 300μL·min -1
[0129] Ion source: electrospray ionization source (ESI)
[0130] Ionization mode: positive and negative ion switching mode
[0131] MS / MS: Selected Reaction Monitoring (SRM). 0~4.0min, using negative ion mode, the ions used for quantitative analysis are m / z579→271 (naringin), m / z609→301 (hesperidin and neohesperidin), m / z417→255 ( Internal standard, liquiritin); 4.1~10.0min, using positive ion mode, the ions used for quantitative analysis were m / z447→271 (baicalin), m / z461→285 (wogonin).
[0132] Mass spectrometry parameters: In negative ion mode, the parameter spray voltage is 4000V...
Embodiment 2
[0141] LC-MS / MS conditions
[0142] Column: ZORBAX SB-C 18 (150×2.1mm, 5μm, Agilent)
[0143] Pre-column: Security Guard-C 18 (4.0mm×3.0mm i.d, 5μm, Agilent)
[0144] Mobile phase: 0.01% formic acid water (A)-acetonitrile (B), gradient elution program: 0~3.0min, 30%B; 3.0~3.1min, 24%B–60%B; 3.1~10.0min, 60%B B – 80% B.
[0145] Column temperature: 20°C
[0146] Flow rate: 250μL·min -1
[0147] Ion source: electrospray ionization source (ESI)
[0148] Ionization mode: positive and negative ion switching mode
[0149] MS / MS: Selected Reaction Monitoring (SRM). 0~4.0min, using negative ion mode, the ions used for quantitative analysis are m / z579→271 (naringin), m / z609→301 (hesperidin and neohesperidin), m / z417→255 ( Internal standard, liquiritin); 4.1~10.0min, using positive ion mode, the ions used for quantitative analysis were m / z447→271 (baicalin), m / z461→285 (wogonin).
[0150] Mass spectrometry parameters: In negative ion mode, the parameter spray voltage is 4000V...
Embodiment 3
[0157] LC-MS / MS conditions
[0158] Chromatographic column: WondaSil-C18 (150×2.1mm, 5μm, Shimadzu)
[0159] Pre-column: Security Guard-C 18 (4.0mm×3.0mm i.d, 5μm, Phenomenex)
[0160] Mobile phase: 0.5% formic acid water (A)-acetonitrile (B), gradient elution program: 0~3.0min, 24%B; 3.0~3.1min, 24%B–60%B; 3.1~10.0min, 60%B b.
[0161] Column temperature: 30°C
[0162] Flow rate: 300μL·min -1
[0163] Ion source: electrospray ionization source (ESI)
[0164] Ionization mode: positive and negative ion switching mode
[0165] MS / MS: Selected Reaction Monitoring (SRM). 0~4.0min, using negative ion mode, the ions used for quantitative analysis are m / z579→271 (naringin), m / z609→301 (hesperidin and neohesperidin), m / z417→255 ( Internal standard, liquiritin); 4.1~10.0min, using positive ion mode, the ions used for quantitative analysis were m / z447→271 (baicalin), m / z461→285 (wogonin).
[0166] Mass spectrometry parameters: In negative ion mode, the parameter spray voltage ...
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