摘要
以希土空白作对比，改变不同试液的酸度，发现不管溶液中是否存在希土离子，叶绿素吸收峰的改变只在溶液ｐＨ小于１５时出现，ｐＨ大于等于１５时不发生，说明叶绿素紫外可见吸收谱峰的改变是由酸度引起，而希土离子的作用与此无关。
The ultraviolet visible absoption spectrum of extracted chlorophyll mixing with rare earth ion solution were observed. When the blank solution without rare earth ion was taken as contrast, it was found that whether rare earth ion existed in solution or not, the change on the absorption peaks of chlorophyll occured when the pH value of rare earth ion solution was lower than 1.5, and the change did not occur when the pH value was higher than 1.6. Results demonstrated that rare earth ion could not make the change of absorption spectrum of chlorophyll. It was acidity of the solution that changed the absorption peaks of chlorophyll. [WT5”HZ〗
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
1997年第2期237-239,共3页
Chinese Journal of Inorganic Chemistry
关键词
叶绿素
希土离子
酸度
吸收光谱
chlorophyll\ \ \ rare earth ion\ \ \ absoption spectrum\ \ \ acidity
