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熱門關鍵詞:蘇瑪罐,原子吸收分光光度計,環(huán)境監(jiān)測產(chǎn)品,液相色譜,色譜柱。

技術文章您現(xiàn)在的位置:首頁 > 技術文章 > 高效液相色譜法分離阿昔洛韋和氫化混合物-Primesep 100

高效液相色譜法分離阿昔洛韋和氫化混合物-Primesep 100

更新時間:2021-07-20   點擊次數(shù):2042次

高效液相色譜法分離阿昔洛韋和氫化混合物


Primesep-100-min

 

 

 

 

 

 

 

 

 

Compounds of significantly different polarity are easy to resolve on reverse phase HPLC columns. In this situation, a gradient elution is usually required to obtain a reasonable retention time for all compounds. However the gradient is not always desirable especially for high throughput mode of operation.

• Extra work would be required to prepare two different solvents for theL流動相 phase.
• Run time is long.
• Additional time is required for column equilibration prior to each injection.

A mixture of acyclovir and hydrocortisone is a such example. Often they are both constituted in topical creams used to treat cold sores/fever blisters. Acyclovir is a polar molecule (logP = – 1.2) while hydrocortisone (logP = ~1.7) is a hydrophobic compound. Their separation on a reverse phase 150 mm, 5ìm column would take 10+ minutes. The same separation, but much faster, can be obtained on a Mixed-Mode (Primesep 100) column with simple isocratic mode of elution. For LC-MS compatible conditions the sulfuric acid can be substituted by TFA or ammonium formate.

Column Name : Primesep 100 Columns

Compound Name : Hydrocortisone, Acyclovir

 

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