Acta Phys. -Chim. Sin. ›› 1997, Vol. 13 ›› Issue (03): 193-195.doi: 10.3866/PKU.WHXB19970301

• Communication •     Next Articles

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


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