脉冲光声方法研究液相光化学和光生物化学反应

Applications of pulsed photoacoustic methods to study photoinduced chemical and biochemical reactions in solutions

利用脉冲光声技术,研究液相光化学和光生物化学反应过程,在基本理论和实验技术两方面都有了重要的发展,为直接测定其反应动力学和热力学参量提供有效的方法,并广泛应用于测定各种有机化合物、配合物和动植物蛋白质分子在溶液中的光解反应,对光解反应引起的焓变、结构体积变化以及瞬态中间产物的寿命和量子产率给出丰富的信息。本文对有关领域在国内外的主要进展作了简要的介绍,并提出今后需要研究的一些问题。

Pulsed photoacoustic methods have been used to study photoinduced chemical and biochemical reactions in solutions. The important developments of the studies have been achieved in basic theories and experimental techniques, which provide direct measurements of the kinetic dynamics and thermodynamics processes of photoinduced chemical and biochemical reactions in solutions. The applications of the methods include the studies of the photoinduced reactions of organic compound, complex and protein molecules of human, animals and plants. The information on the enthalpy and conformational volume changes of the reactions, as well as the lifetimes and quantum yields of the transient intermediate species, has been obtained in rich. In this paper, the main progresses of the related fields are introduced briefly and some problems that need to be studied are indicated.