色谱
色譜
색보
CHINESE JOURNAL OF CHROMATOGRAPHY
2001年
1期
9-12
,共4页
张强%邹汉法%陈小明%汪海林%倪坚毅%张曾子%姚平径
張彊%鄒漢法%陳小明%汪海林%倪堅毅%張曾子%姚平徑
장강%추한법%진소명%왕해림%예견의%장증자%요평경
蛋白固定相%β-环糊精固定相%热力学%手性拆分
蛋白固定相%β-環糊精固定相%熱力學%手性拆分
단백고정상%β-배호정고정상%열역학%수성탁분
采用三聚氯氰为活化剂分别合成了牛血清白蛋白(BSA)、人血清白蛋白(HSA)和β-环糊精手性固定相,研究了温度在色氨酸,华法令,酮基布洛芬和丹酰化苏氨酸手性拆分中的影响。结果表明,在蛋白手性固定相上对映体间的熵变对色氨酸,华法令和酮基布洛芬的拆分有很大的影响,而丹酰化苏氨酸对映体在β-环糊精手性固定相上的拆分为典型的焓控过程,与蛋白柱有着不同的热力学特性。由于键合方式不同,色氨酸在我们合成的BSA手性固定相上的最佳分离温度为35℃左右,而不是文献报道的以戊二醛为活化剂的24℃。
採用三聚氯氰為活化劑分彆閤成瞭牛血清白蛋白(BSA)、人血清白蛋白(HSA)和β-環糊精手性固定相,研究瞭溫度在色氨痠,華法令,酮基佈洛芬和丹酰化囌氨痠手性拆分中的影響。結果錶明,在蛋白手性固定相上對映體間的熵變對色氨痠,華法令和酮基佈洛芬的拆分有很大的影響,而丹酰化囌氨痠對映體在β-環糊精手性固定相上的拆分為典型的焓控過程,與蛋白柱有著不同的熱力學特性。由于鍵閤方式不同,色氨痠在我們閤成的BSA手性固定相上的最佳分離溫度為35℃左右,而不是文獻報道的以戊二醛為活化劑的24℃。
채용삼취록청위활화제분별합성료우혈청백단백(BSA)、인혈청백단백(HSA)화β-배호정수성고정상,연구료온도재색안산,화법령,동기포락분화단선화소안산수성탁분중적영향。결과표명,재단백수성고정상상대영체간적적변대색안산,화법령화동기포락분적탁분유흔대적영향,이단선화소안산대영체재β-배호정수성고정상상적탁분위전형적함공과정,여단백주유착불동적열역학특성。유우건합방식불동,색안산재아문합성적BSA수성고정상상적최가분리온도위35℃좌우,이불시문헌보도적이무이철위활화제적24℃。
The effect of column temperature on enantiomeric resolution s oftryptophan, warfarin and ketoprofen was investigated on bovine and human serum albumin (BSA and HSA) stationary phases, which were synthesized with s-triazine as the activator. It was observed that the e ntropy change made a great contribution to the separation of those enantiomers o n albumin chiral stationary phases. The column temperature for the maximal resol ution of tryptophan on the BSA stationary phase prepared by this method was abou t 35 ℃, which was not 24 ℃ as reported for the BSA stationary phase sy n thesized with glutaric dialdehyde as the activator. This results may come from the different conformation of the immobilized BSA and HSA due to the different c oupling methods used. On the other hand, it was indicated that the resolution of enantiomers on β -CD chiral stationary phase was mainly contributed from the change of enthalp y, which means the resolution of chiral solutes on albumin and β-CD statio nary phases has different thermodynamic behaviors.