Method for simultaneously detecting main components of Naoxintong capsule in plasma
A Naoxintong, capsule technology, applied in the field of medicine, can solve problems such as no reports
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Embodiment 1
[0087] Example 1. Establishment of an analysis method for the main components of the plasma sample Zhongnaoxintong Capsules
[0088] 1.1 LC-MS / MS conditions:
[0089] The chromatographic column is an Agilent Eclipse Plus C18 column (4.6mm×100mm, 1.8μm); the guard column is an Agilent C18 column (2.1×12.5mm, 5μm); the mobile phase is: A: acetonitrile, B: water (containing 0.1% volume fraction formic acid); the flow rate is 300 μL / min; the column temperature is 30°C; the injection volume is 10 μL; the time is 0-30min;
[0090] Gradient elution was adopted, and the elution program is shown in Table 1.
[0091] Table 1 Mobile phase gradient elution program
[0092]
[0093] Mass spectrometry conditions: using API 3200 TM LC / MS / MS liquid mass analysis system; Ion source, positive and negative ion fast switching analysis mode, MRM scanning mode;
[0094] Positive ion mode: curtain gas (CUR): 10psi; collision gas (CAD): 8psi; ion spray voltage (IS): 5000V; temperature (TEM):...
Embodiment 2
[0148] Embodiment 2, pharmacokinetics of main components of Hounaoxintong Capsules after intragastric administration to rats
[0149] 2.1 Collection of plasma samples
[0150] Tested male SD rats were pre-adapted for one week, fasted without food and water for 12 hours the night before the test, and on the second day, the experimental animals were randomly divided into two groups, with 8 rats in each group, and fed with 0.5g / kg and 1.5g / kg respectively. Gastric administration, blood was collected from the fundus venous plexus at 0.083, 0.167, 0.25, 0.5, 0.75, 1, 1.5, 2, 4, 8, 12 and 24 hours after administration, placed in a heparinized centrifuge tube, centrifuged at 8000g for 10 minutes, and taken out The upper layer of plasma was stored in a refrigerator at -20°C until testing.
[0151] 2.2 Pretreatment of plasma samples
[0152] Take 100 μL of plasma sample, accurately add 10 μL of internal standard mixed solution, 10 μL of formic acid, vortex for 1 min, then add 400 μL ...
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