Guanxinshutong capsule content detection method using quantitative analysis of multi-components by single-marker
A detection method, the technology of Guanxinshu, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of complex and cumbersome operation, large consumption of reference substances, shortage of supply, etc., and achieve strong operability and good recovery rate Effect
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Embodiment 1
[0048] Embodiment 1: The present invention establishes a test and multiple evaluation method to measure Guanxinshutong capsule liquid chromatography method
[0049] 1 Instruments and reagents
[0050] 1.1 Instrument
[0051] Agilent 1260 (quaternary pump G1311B; autosampler G1329B; column thermostat G1316A; diode array detector G4212B; LAB open chromatography data workstation); electronic analytical balance (model BP211D, d = 0.01mg, German Sartorius balance limited company); ultrasonic cleaner (model: KQ-250DE, Kunshan Ultrasonic Instrument Co., Ltd.); Agilent ZORBAX Extend-C 18 Chromatography column (250mm×4.6mm, 5μm).
[0052] 1.2 Reagent
[0053] The 24 batches of Guanxin Shutong Capsules were all produced by Shaanxi Buchang Pharmaceutical Co., Ltd., and the batch numbers are shown in Table 2. Methanol was chromatographically pure (Fisher Reagent Company, USA), water was Wahaha Water (Hangzhou Wahaha Group Co., Ltd.), and other reagents were analytically pure.
[0054...
Embodiment 2
[0110] Study on the Influencing Factors of Relative Correction Factor and Relative Retention Time
[0111] Influencing factors such as different brands of chromatographic columns were investigated respectively. Take 10 μl of the reference substance solutions of the five groups under the reference substance preparation item, inject them into high-performance liquid chromatography for analysis, and investigate the influence of the above factors on the correction factor and relative retention time.
[0112] 2.1 Method reproducibility inspection
[0113] The experiment investigated the reproducibility of relative retention time and retention time difference in different chromatographic columns. The chromatographic columns are: Kromasil C 18 Chromatographic column (4.6mm×250mm, 5μm), Diamonsil C 18 Chromatography column (4.6mm×250mm, 5μm), Agilent Extend-C 18 Chromatographic column (4.6mm×250mm, 5μm), the result |RSD| of the retention time difference and the relative retention ...
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