| 光声量热法测定辅酶B12的光解量子产率 |
| |
| 引用本文： | 傅少伟,罗来斌,陈慧兰,吴宗森,张淑仪.光声量热法测定辅酶B12的光解量子产率[J].物理化学学报,1997,13(3):193-195. |
| |
| 作者姓名： | 傅少伟 罗来斌 陈慧兰 吴宗森 张淑仪 |
| |
| 作者单位： | Laboratory of Modern Acoustics and Institute of Acoustics,Nanjing University,Nanjing 210093,Laboratory of Coordination Chemistry,Nanjing University,Nanjing 210093 |
| |
| 摘 要： | 时间可分辨的光声最热法（Time－resolvedphotoacousticcalorimetry；简称PAC）是研究脉冲激光诱发的快速光化学和光生物化学反应过程动力学和热力学信息的一种有效方法1－5]。本文采用压电陶瓷圆管同时作为样品油和换能器组成的PAC探测系统6]，以波长λ＝355nm的脉冲激光（脉冲宽度8ns，脉冲重复频率10Hz）为光源激发辅酶B12甲醇溶液；研究其解量子产率，获得了满意的结果．1实验被测溶液注入两端用石英玻璃封口的压电陶瓷圆管内腔，激光束透过石英窗照射溶液（如图］所示）为标定被测样品的非辐射放热量，利用能在极短的时间内（＜l…
|
| 关 键 词： | 辅酶B12 光解 量子产率 光声量热 |
| 收稿时间： | 1996-09-17 |
| 修稿时间： | 1996-12-18 |
Photoacoustic Investigation of Photolysis of Coenzyme B_(12) |
| |
| Fu Shaowei Luo Laibin Chen Huilan Wu Zongsen Zhang Shuyi.Photoacoustic Investigation of Photolysis of Coenzyme B_(12)[J].Acta Physico-Chimica Sinica,1997,13(3):193-195. |
| |
| Authors: | Fu Shaowei Luo Laibin Chen Huilan Wu Zongsen Zhang Shuyi |
| |
| Institution: | Laboratory of Modern Acoustics and Institute of Acoustics,Nanjing University,Nanjing 210093|Laboratory of Coordination Chemistry,Nanjing University,Nanjing 210093 |
| |
| 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. |
| |
| Keywords: | Coenzyme B_(12) Photolysis Quantum yield Photoacoustic calorimetry |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《物理化学学报》浏览原始摘要信息 |
| 点击此处可从《物理化学学报》下载免费的PDF全文 |
