物理化学学报 >> 1997, Vol. 13 >> Issue (03): 193 -195 .doi: 10.3866/PKU.WHXB19970301

通讯    下一篇

光声量热法测定辅酶B12的光解量子产率

傅少伟,罗来斌,陈慧兰,吴宗森,张淑仪   

  1. 南京大学声学研究所，近代声学国家重点实验室，南京 210093|南京大学化学系，配位化学国家重点实验室，南京 210093
  • 收稿日期:1996-09-17 修回日期:1996-12-18 发布日期:1997-03-15
  • 通讯作者: 张淑仪

Photoacoustic Investigation of Photolysis of Coenzyme B12

Fu Shao-Wei,Luo Lai-Bin,Chen Hui-Lan,Wu Zong-Sen,Zhang Shu-Yi   

  1. Laboratory of Modern Acoustics and Institute of Acoustics,Nanjing University,Nanjing 210093|Laboratory of Coordination Chemistry,Nanjing University,Nanjing 210093
  • Received:1996-09-17 Revised:1996-12-18 Published:1997-03-15
  • Contact: Zhang Shu-Yi

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关键词: 辅酶B12, 光解, 量子产率, 光声量热

Abstract:

A photoacoustic detection system consisted of a piezoelectric cylindrical tube transducer is applied to measure the photolysis of Coenzyme B12 (5'-deoxyadenosylcobalamin, AdoCbl) in methanol to obtain the quantum yield, Ф. The value of 0.20±0.05 is in agreement with that obtained in aqueous solution by other authors with an optical method.

Key words: Coenzyme B12, Photolysis, Quantum yield, Photoacoustic calorimetry