飞秒细丝-纳秒激光诱导击穿光谱技术对土壤重金属Pb元素检测

任佳; 高勋

doi:10.3788/OPE.20192705.1069

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飞秒细丝-纳秒激光诱导击穿光谱技术对土壤重金属Pb元素检测

现代应用光学 | 更新时间：2020-08-13

- 飞秒细丝-纳秒激光诱导击穿光谱技术对土壤重金属Pb元素检测
- Detection of heavy metal Pb in soil by filament-nanosecond laser induced breakdown spectroscopy
- 光学精密工程 2019年27卷第5期页码：1069-1074
- 作者机构：
  
  长春理工大学理学院，吉林长春 130022
- 作者简介：
  
  [ "任佳 (1993-)，女，吉林长春人，硕士研究生，2016年于长春理工大学光电信息学院获得学士学位，主要从事激光诱导击穿光谱技术的研究。E-mail：1228662516@qq.com" ]
  [ "高勋 (1978-)，男，山东菏泽人，博士，教授，2000年于长春光机学院获得学士学位，2004年于长春理工大学获得硕士学位，2009年于吉林大学获得博士学位，主要从事激光诱导击穿光谱技术及其应用，激光等离子体红外辐射特性，激光等离子体膨胀动力学及强激光与物质相互作用等领域的研究。E-mail：lasercust@163.com" ]
- 基金信息：
  
  国家自然科学基金资助项目(61575030);吉林省自然科学基金资助项目(20180101283JC);吉林省教育厅资助项目(JJKH20190539KJ)
- DOI：10.3788/OPE.20192705.1069
  中图分类号： O433.4
- 收稿日期：2018-12-17，
  
  录用日期：2018-12-27，
  
  纸质出版日期：2019-05-15
- 稿件说明：
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任佳, 高勋. 飞秒细丝-纳秒激光诱导击穿光谱技术对土壤重金属Pb元素检测[J]. 光学精密工程, 2019,27(5):1069-1074.

Jia REN, Xun GAO. Detection of heavy metal Pb in soil by filament-nanosecond laser induced breakdown spectroscopy[J]. Optics and precision engineering, 2019, 27(5): 1069-1074.
任佳, 高勋. 飞秒细丝-纳秒激光诱导击穿光谱技术对土壤重金属Pb元素检测[J]. 光学精密工程, 2019,27(5):1069-1074. DOI： 10.3788/OPE.20192705.1069.

Jia REN, Xun GAO. Detection of heavy metal Pb in soil by filament-nanosecond laser induced breakdown spectroscopy[J]. Optics and precision engineering, 2019, 27(5): 1069-1074. DOI： 10.3788/OPE.20192705.1069.

摘要

采用飞秒激光成丝-纳秒脉冲激光诱导击穿光谱技术(Filament-ns DP-LIBS)对土壤中重金属铅元素进行了定量分析。利用飞秒激光等离子体丝烧蚀含铅土壤样品，向外喷射低密度的土壤粒子源，经脉冲间隔Δ

后，纳秒脉冲激光再烧蚀低密度土壤粒子，实现等离子体发射光谱强度增强，谱线宽度压缩，降低土壤中重金属铅元素的最小检测限。实验结果表明，相比飞秒激光等离子体丝诱导击穿光谱技术(FIBS)，在飞秒-纳秒脉冲间隔Δ

=10 μs条件时，PbI405.78 nm光谱增强因子为9.66，谱线宽度从3.66×10

-10

m压缩至2.74×10

-10

提高了LIBS光谱分辨率。FIBS和Filament-ns DP-LIBS条件下定标曲线的线性相关系数

分别为0.982和0.994。FIBS条件下的RSD和LOD值分别为7.37%和65.86 mg/kg，Filament-ns DP-LIBS条件下的RSD和LOD值分别为3.27%和24.39 mg/kg。研究结果表明，Filament-ns DP-LIBS技术可以降低土壤重金属的最小检测限，提高LIBS的检测灵敏度。

Abstract

In this study

quantitative analysis of heavy metal lead in soil was conducted by femtosecond laser-filament-laser-induced breakdown spectroscopy (Filament-ns DP-LIBS). First

a femtosecond laser plasma wire was used to ablate the lead-containing soil sample

and a low-density soil particle source was sprayed outward. Then

following interpulse delay time Δ

another nanosecond laser beam was used to re-ablate the low-density soil particle source to enhance spectral intensity

compress spectral line width

improve the experimental repeatability of LIBS

and reduce the Limit of Detection (LOD) of heavy metal lead in the soil. Experimental results show that when compared to the results of the Filament-induced Breakdown Spectroscopy (FIBS)

the enhancement factor of Pb I 405.78 nm for the Filament-ns DP-LIBS with an interpulse delay time of 10 μs is 9.66

and the spectral line width is reduced from 3.66×10

-10

m to 2.74×10

-10

which improves the LIBS spectral resolution. With the FIBS and Filament-ns DP-LIBS

the linear correlation coefficients

of calibration curves are 0.982 and 0.994

respectively. The RSD and LOD values with the FIBS and Filament-ns DP-LIBS are 7.37% and 65.86 mg/kg and 3.27% and 24.39 mg/kg

respectively. The results thus reveal that the Filament-ns DP-LIBS can reduce the minimum detection limit of soil heavy metals and improve the detection sensitivity of LIBS.

关键词

Keywords

references

余克强, 赵艳茹, 刘飞, 等.激光诱导击穿光谱技术在土壤元素检测中的应用[J].光谱学与光谱分析, 2016, 36(3):827-833.

YU K Q, ZHAO Y R, LIU F, et al .. Study on soil elements detection with laser induced breakdown spectroscopy[J]. Spectroscopy and Spectral Analysis , 2016, 36(3):827-833. (in Chinese)

CREMERS D A, EBINGER M H, BRESHEARS D D, et al .. Measuring total soil carbon with laser-induced breakdown spectroscopy(LIBS)[J]. Journal of Environmental Quality , 2001, 30(6):2202-2206.

SCHERER J J, ANIOLEK K W, CERNANSKY N P, et al .. Determination of methyl radical concentrations in a methane/air flame by infrared cavity ringdown laser absorption spectroscopy[J]. Journal of Chemical Physics , 1997, 107(16):6196-6203.

BELLINGER D, LEVITON A, SLOMAN J. Antecedents and correlates of improved cognitive performance in children exposed in utero to low levels of lead[J]. Environmental Health Perspectives , 1990, 89(89):5-11.

许洪光, 管士成, 傅院霞, 等.土壤中微量重金属元素Pb的激光诱导击穿光谱[J].中国激光, 2007, 34(4):577-581.

XU H G, GUAN SH CH, FU Y X, et al .. Laser induced breakdown spectroscopy of the trace metal element Pb in soil[J]. Chinese Journal of Lasers , 2007, 34(4):577-581. (in Chinese)

DELLÁGLIO M, GAUDIUSO R, SENESI G S, et al .. Monitoring of Cr, Cu, Pb, V and Zn in polluted soils by laser induced breakdown spectroscopy (LIBS)[J]. Journal of Environmental Monitoring , 2011, 13(5):1422-1426.

李勇, 陆继东, 林兆祥, 等.应用激光诱导击穿光谱检测土壤中的铅[J].应用光学, 2008, 29(5):789-792.

LI Y, LU J D, LIN ZH X, et al .. Quantitative analysis of lead in soil by laser-induced breakdown spectroscopy[J]. Journal ofApplied Optics , 2008, 29(05):789-792. (in Chinese)

鲁翠萍, 刘文清, 赵南京, 等.土壤中铅元素的激光诱导击穿光谱测量分析[J].激光与光电子学进展, 2011, 48(5):124-127.

LU C P, LIU W Q, ZHAO N J, et al .. Measurement and analysis of lead in soil using laser induced breakdown spectroscopy[J]. Laser & Optoelectronics Progress , 2011, 48(5):124-127. (in Chinese)

CREMERS D A, RADZIEMSKI L J, LOREE T R. Spectrochemical analysis of liquids using the laser spark[J]. Applied Spectroscopy , 1984, 38(5):721-729.

SCAFFIDI J, PENDER J, PEARMAN W, et al .. Dual-pulse laser-induced breakdown spectroscopy with combinations of femtosecond and nanosecond laser pulses[J]. Applied Optics , 2003, 42(30):6099-6106.

OBA M, MARUYAMA Y, AKAOKA K, et al .. Double-pulse LIBS of gadolinium oxide ablated by femto-and nano-second laser pulses[J]. Applied Physics A, 2010, 101(3): 545-549.

LIU X L, SUNS H, WANGX S, et al .. Effect of laser pulse energy on orthogonal double femtosecond pulse laser-induced breakdown spectroscopy[J]. Optics Express , 2013, 21(13):A704-A713.

HE X N, HU W, LI CM, et al .. Generation of high-temperature and low-density plasmas for improved spectral resolutions in laser-induced breakdown spectroscopy[J]. Optics Express , 2011, 19(11): 10997-11006.

DAIGLE J F, JAROÑBECKER A, HOSSEINI S, et al .. Intensity clamping measurement of laser filaments in air at 400 and 800 nm[J]. Physical Review A , 2010, 82(2):811-814.

MAN B Y, DONG Q L, LIU A H, et al .. Line-broadening analysis of plasma emission produced by laser ablation of metal Cu[J]. Journal of Optics A: Pure and Applied Optics , 2003, 6(1):17-21.

WALLIS F J, CHADWICK B L, MORRISON R J. Analysis of lignite using laser-induced breakdown spectroscopy[J]. Applied Spectroscopy , 2000, 54(8):1231-1235.

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