Continuous Online Detection Method of Heavy Metals in Water Based on LIBS Technology

Yao Jia; Nanjing Zhao; Wenqing Liu; Li Fang; Mingjun Ma; Deshuo Meng

doi:10.3788/CJL201845.0611001

Chinese Journal of Lasers, Volume. 45, Issue 6, 0611001(2018)

Continuous Online Detection Method of Heavy Metals in Water Based on LIBS Technology

Yao Jia^1,2,3, Nanjing Zhao^1,3、*, Wenqing Liu^1,3, Li Fang^1,3, Mingjun Ma^1,2,3, and Deshuo Meng^1,3

¹ Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, Anhui 230031, China

² University of Science and Technology of China, Hefei, Anhui 230026, China

³ Key Laboratory of Optical Monitoring Technology for Environment, Anhui Province, Hefei, Anhui 230031, China

show less

Abstract Get PDF(in Chinese)

Figures & Tables(7)

Fig. 1. Scheme design of automatic on-line detection method of heavy metals in water

Download full size

Fig. 2. Prototype of automatic on-line monitoring of heavy metals in water

Download full size

Fig. 3. Effect of coffee ring on accumulation stability of sample solution

Download full size

Fig. 4. Structure of laser excitation and detection module

Download full size

Fig. 5. Calibration curves of different heavy metal elements. (a) Cd; (b) Cr; (c) Cu; (d) Ni; (e) Pb; (f) Zn

Download full size

Table 1. RSD of detection results of heavy metals
View table
Table 1. RSD of detection results of heavy metals
Element Cd Cr Cu Ni Pb Zn
RSD /% 9.24 10.45 12.59 11.58 15.24 6.87

Table 2. Detection limits of heavy metals and some national water quality inspection standardmg·L-1

View table

Table 2. Detection limits of heavy metals and some national water quality inspection standardmg·L-1

Element	Cd	Cr	Cu	Ni	Pb	Zn
Detection limit	0.03	0.012	0.0047	0.033	0.071	0.0376
Standards for surface water class I	0.001	0.01	0.01	0.005	0.01	0.05
Standards for surface water class II	0.005	0.05	0.1	0.05	0.01	1.0
Standards for drinking water	0.005	0.05	1.0	0.02	0.01	1.0
Standards for wastewater	0.1	0.5	0.5	1.0	1.0	2.0

Tools

Get Citation

Copy Citation Text

Yao Jia, Nanjing Zhao, Wenqing Liu, Li Fang, Mingjun Ma, Deshuo Meng. Continuous Online Detection Method of Heavy Metals in Water Based on LIBS Technology[J]. Chinese Journal of Lasers, 2018, 45(6): 0611001

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites