激光等离子体光谱法用于测量水溶液中钙的浓度  

Determination of Calcium Concentration in Water Solution by Laser-Induced Plasma Spectroscopy

作　　者：李静[1] 林长贺[1] 李胜利[2] 

机构地区：[1]中国科学技术大学精密机械与精密仪器系光电技术实验室,安徽合肥230027 [2]暨南大学生物医学工程系,广东广州510632

出　　处：《光谱学与光谱分析》2006年第5期944-946,共3页Spectroscopy and Spectral Analysis

基　　金："973"国家安全重大基础研究项目(51328);中国科学技术大学青年基金项目资助

摘　　要：采用激光等离子体光谱法在所建立的实验装置上测量水溶液中钙的含量,用调Q YAG:Nd激光作为激光发源。实验结果表明,钙含量与光谱线强度成正比。得到的最大相对误差为3·79%,可测得的最低钙浓度为0·3125%,线性相关系数为0·99287。实验证明该光谱分析法简便、可靠、具有较高的准确度。With the experiment setup the calcium concentration in water solution was measured, based on a Nd： YAG Q-switched solid laser as the exciting light. The experiment results show that the concentration of calcium has a good linear relationship with its spectral intensity, the maximum relative errors of measurement are 3. 79%, and the linear regression coefficients are 0. 992 87. In addition, laser induced plasma spectroscopy （LIPS） demonstrated convenient operation, and reliable and higher precision measurement of calcium concentration in water solution.

关 键 词：激光等离子体光谱技术 钙 水溶液 

分 类 号：O657.3[理学—分析化学]