Quantitative detection method of edetate disodium and sodium pyrosulfite in Shenqifuzheng injection
A quantitative detection method, the technology of edetate disodium, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of additives that have not established a public quality control method, quality and safety hazards, and feeding amount deviations, etc., to achieve guaranteed Drug quality and safety, optimized use, and the effect of ensuring drug safety
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Embodiment 1
[0042] 1 Instruments and reagents
[0043] 1.1 Instruments: Ion Chromatography: DIONEXICS-2000 (Dion Corporation); Chromatographic Column: IonPacAS11-HC (4×250mm) (Dion Corporation); Guard Column: IonPacAH11-HC (4×50mm) (Dion Corporation); Detector: Conductivity detector (Dion Corporation); eluent tank: EGCIIKOH (090581489019). Millipore pure water meter.
[0044] 1.2 Reagent: edetate disodium reference substance (batch number: 20100311, Hangzhou Liren Pharmaceutical Co., Ltd.); sodium metabisulfite reference substance (batch number: 20100301, Hunan Erkang Pharmaceutical Co., Ltd.). Sep-Pak Cartridges VacC 183cc Cartridges (Waters). Shenqi Fuzheng Injection was provided by Limin Pharmaceutical Factory of Livzon Group. The reagents acetonitrile and formic acid used in the experiment were chromatographically pure, and the water was ultrapure water.
[0045] 2 Methods and results
[0046] 2.1 Preparation of the test solution: Accurately measure 1mL of Shenqi Fuzheng Injectio...
Embodiment 2
[0097] Example 2 Screening of Shenqi Fuzheng Injection Dilution Multiples
[0098] Preparation of the test solution:
[0099] Test solution 1: dilute 10 times
[0100] Precisely measure 1mL of Shenqi Fuzheng Injection, purify it through a C18 small column, elute with deionized water, set the volume to a 10mL measuring bottle, and set the volume to obtain the product.
[0101] Test solution 2: dilute 20 times
[0102] Precisely measure 1mL of Shenqi Fuzheng Injection, purify it through a C18 column, elute with deionized water, set the volume to a 10mL measuring bottle, then precisely measure 2.5mL into a 5mL measuring bottle, and set the volume to obtain the product.
[0103] Test solution 3: dilute 50 times
[0104] Precisely measure 1mL of Shenqi Fuzheng Injection, purify it through a C18 small column, elute with deionized water, set the volume to a 10mL measuring bottle, then precisely measure 10mL into a 50mL measuring bottle, and set the volume to obtain the product.
...
Embodiment 3
[0115] Embodiment 3 chromatographic column is selected
[0116] Compare AS11-HC and Biobasic two kinds of ion chromatographic columns, experimental condition is described with reference to embodiment 1, experimental result is as chromatographic Figure 9 and 10 .
[0117] The baseline of the AS11-HC graph is stable, and the resolution is better than that of the Biobasic graph. Therefore choose AS11-HC ion chromatography column.
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