Method for determining microstructure of lipid microsphere/lipid emulsion
A lipid emulsion and microstructure technology, which is applied in the preparation of test samples and material analysis by measuring secondary emissions, can solve the problems of sample damage, low success rate, and poor reproducibility
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Embodiment 1
[0033] Sample: alprostadil injection (trade name Kaishi), negative dye: phosphomolybdic acid, dilution ratio: about 2500 times, negative ion generator is Stablo remover from Shimadzu company, drying method is vacuum decompression drying, test The result is as Figure 5 shown.
Embodiment 2
[0035] Sample: Flurbiprofen axetil injection (trade name Kaifen), negative dye: phosphotungstic acid, dilution ratio: about 1000 times, negative ion generator is ANTIST-KIT-UN antistatic device from Mettler, Germany, dry The method is vacuum drying under reduced pressure, and the test results are as follows: Image 6 shown.
Embodiment 3
[0037] Sample: fat emulsion injection (trade name Intralipid), negative dye: uranyl acetate, dilution ratio: about 4000 times, negative ion generator is YSTP01 antistatic pen, drying method is infrared lamp drying, the test results are as follows Figure 7 shown.
[0038] Depend on Figure 5 , 6 7. It can be seen that in the three commercially available samples measured by the method of the present invention, the microparticles of the lipid microspheres / lipid emulsion are round, clear, and have good separation, the microscopic morphology is clear, and there is no aggregation and adhesion, and the repeatability of multiple determinations is it is good.
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