Determination of Calcium Concentration in Water Solution by Laser-Induced Plasma Spectroscopy
LI Jing1, LIN Chang-he1, LI Sheng-li2
1. Photoelectric Lab, Department of Precision Machinery and Precision Instrument, University of Science and Technology of China, Hefei 230027, China 2. Department of Biomedicine Engineering, Jinan University, Guangzhou 510632, China
Abstract：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.
Key words：Laser-induced plasma spectroscopy;Calcium;Water solution of CaCl2
李 静1,林长贺1, 李胜利２ . 激光等离子体光谱法用于测量水溶液中钙的浓度[J]. 光谱学与光谱分析, 2006, 26(05): 944-946.
LI Jing1, LIN Chang-he1, LI Sheng-li2. Determination of Calcium Concentration in Water Solution by Laser-Induced Plasma Spectroscopy. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(05): 944-946.
