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Published on: September 23, 2013
[Determination of calcium concentration in water solution by laser-induced plasma spectroscopy]
Jing Li1, Chang-He Lin, Sheng-Li Li
1Photoelectric Lab, Department of Precision Machinery and Precision Instrument, University of Science and Technology of China, Hefei 230027, 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.

