Fingerprint checking method of gadol injection
A fingerprint and inspection method technology, which is applied in the field of quality inspection of traditional Chinese medicine preparations, can solve problems such as drug risks, achieve good reproducibility, and improve inspection efficiency
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Embodiment 1
[0023] Embodiment 1: the standard fingerprint collection of rhodiola injection
[0024] The establishment of the standard fingerprint of Rhodiola injection includes the following steps:
[0025] a, preparation of test solution
[0026] Precisely measure 2ml of Rhodiola injection, put it in a 10ml measuring bottle, add water for injection to dilute to the mark, shake well, shake and extract 3 times with n-butanol saturated with water, 5ml each time, combine the n-butanol solution, and evaporate to dryness , the residue is dissolved in water for injection, transferred to a 5ml measuring bottle, diluted to the mark with water for injection, filtered through a microporous membrane (0.45 μm), and the filtrate is obtained.
[0027] b. Preparation of standard solution
[0028] Accurately weigh an appropriate amount of salidroside reference substance, add water for injection to dissolve, and make a solution containing 0.05mg salidroside per 1ml
[0029] c. Chromatographic condition...
Embodiment 2
[0045] Embodiment 2: Application of Rhodiola Rosea Injection Fingerprint Spectrum
[0046] 3 batches of samples for mass production are inspected. The sample fingerprint was established according to the method for establishing the standard fingerprint, and the figure 2 , 3 , 4 fingerprints. Evaluation and determination method compare the fingerprints of three batches of Rhodiola injection with the fingerprints of standard Rhodiola injection. The fingerprints of the test samples are similar to the standard fingerprints. The relative retention times and peaks of 18 common peaks of the three batches of samples The ratio of the non-common peak area to the total peak area was calculated, and all of them met the requirements of the standard fingerprint of Rhodiola injection. The standard fingerprint of Rhodiola injection can be used to check the mass-produced Rhodiola injection and has specificity.
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