Jiawei CHANG, Yarui WANG, Xinrong MA, Weiwei Han, Guoding Zhang, Quanfang LU, Duixiong SUN. Quantitative detection of Cu element in Yellow River water based on LIBS⁃GD combined technology[J]. Chinese Journal of Quantum Electronics, 2024, 41(3): 514
- Chinese Journal of Quantum Electronics
- Vol. 41, Issue 3, 514 (2024)
Fig. 1. Specific location of sample collection
Fig. 2. Schematic diagram of LIBS-GD combined technology experimental device
Fig. 3. Optimization of discharge voltage of LIBS-GD combined experiment
Fig. 4. Optimization of laser parameters for LIBS-GD combined experiment. (a) H I 656.24 nm emission spectrum intensity change with delay time; (b) H I 656.24 nm emission spectrum intensity change with laser energy
Fig. 5. #3 sample Spectrum (insert: Cu element spectrum of the five samples)
Fig. 6. Calibration curve of Cu I 327.45 nm under internal standard method (insert: copper fitting curve in the concentration range of 0.7-12.5 mg/L)
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Table 1. Comparison between internal standard method and AAS
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