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Detection method of polyethylene glycol monomethyl ether residue in medicinal materials
Detection method of polyethylene glycol monomethyl ether residue in medicinal materials
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机译:药品中聚乙二醇单甲醚残留的检测方法
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摘要
A detection method of polyethylene glycol monomethyl ether residue in medicinal materials is provided, which belongs to a technical field of medicinal chemical component detection, and includes: detecting a residual amount of mPEG-2000 in 3000-3400 small-molecule mPEG-b-PDLLA by high-performance liquid chromatography with an evaporative light scattering detector. The present invention solves a problem that the copolymer polyethylene glycol monomethyl ether mPEG and the product polyethylene glycol monomethyl ether-polylactic acid block copolymer mPEG-b-PDLLA are difficult to be separated in the high-performance liquid chromatography and there is no UV absorption. The present invention also has high resolution, high sensitivity, sufficient reproducibility and sufficient selectivity.
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