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Laser & Optoelectronics Progress, Volume. 56, Issue 7, 073002(2019)

Key Experimental Parameter Optimization for Laser Induced Breakdown Spectroscopy of Liquid Matrix

Cheng Li, Guanxin Yao, Xinyan Yang, Zhengbo Qin, Xianfeng Zheng, and Zhifeng Cui*
Author Affiliations
  • Key Laboratory of Optoelectronic Materials Science and Technology of Anhui Province, Anhui Normal University, Wuhu, Anhui 241000, China
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    Figures&Tables (10)
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    References (18)
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    Figures & Tables(10)
    Schematic of experimental apparatus

    Fig. 1. Schematic of experimental apparatus

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    LIBS of each heavy metal element in mixed solution. (a) Al; (b)Mn, Pb; (c) Cr, Ca; (d) Cd

    Fig. 2. LIBS of each heavy metal element in mixed solution. (a) Al; (b)Mn, Pb; (c) Cr, Ca; (d) Cd

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    LIBS versus laser pulse energy

    Fig. 3. LIBS versus laser pulse energy

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    RSN versus laser pulse energy

    Fig. 4. RSN versus laser pulse energy

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    LIBS versus ICCD gate delay

    Fig. 5. LIBS versus ICCD gate delay

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    RSN versus ICCD gate delay

    Fig. 6. RSN versus ICCD gate delay

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    RSN versus liquid flow rate

    Fig. 7. RSN versus liquid flow rate

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    • Table 1. Heavy metal elements and their mass concentrations in mixed solution

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      Table 1. Heavy metal elements and their mass concentrations in mixed solution

      ElementChemicalformulaMolecularweight ofsoluteMassconcentration /10-6
      CrCrCl3·6H2O266.50200
      CdCdCl2·2.5H2O228.403000
      PbPb(NO3)2331.23500
      MnMnCl2125.84200
      CaCaCl2111.005
      AlAlCl3113.34100

    • Table 2. Assignments of atom lines and their ion lines

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      Table 2. Assignments of atom lines and their ion lines

      ElementSpectral wavelength/nm
      Cr I302.156, 357.868, 359.348, 360.532, 425.433, 427.481, 428.973, 520.451, 520.602, 520.841, 540.978
      Cr II283.563, 284.324, 284.983,
      Cd I228.802, 326.105, 346.62, 346.766, 361.051, 361.287, 467.815, 479.991, 508.582, 643.847
      Pb I261.418, 280.2, 283.305, 363.957, 368.346, 405.781
      Mn I279.482, 279.827, 280.108, 403.076, 403.307, 403.449 475.404, 478.343, 482.352,
      Mn II257.61, 259.372, 260.568, 293.305, 293.931, 294.921
      Ca I422.673, 445.478, 612.222,
      Ca II393.366, 396.847,
      Al I309.271, 394.401, 396.152

    • Table 3. Analytical spectral lines, first ionization energies and excitation difficulty levels

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      Table 3. Analytical spectral lines, first ionization energies and excitation difficulty levels

      ElementAnalyticalspectral line /nmFirst ionizationenergy /eVExcitationdifficulty level
      Pb405.7814.375Medium
      Cr425.4332.913Easy
      CdMnCaAl508.582403.076422.673396.1526.3833.0752.9333.141Hardeasyeasyeasy
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    Cheng Li, Guanxin Yao, Xinyan Yang, Zhengbo Qin, Xianfeng Zheng, Zhifeng Cui. Key Experimental Parameter Optimization for Laser Induced Breakdown Spectroscopy of Liquid Matrix[J]. Laser & Optoelectronics Progress, 2019, 56(7): 073002

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    Paper Information

    Category: Spectroscopy

    Received: Sep. 29, 2018

    Accepted: Oct. 24, 2018

    Published Online: Jul. 30, 2019

    The Author Email: Zhifeng Cui (zfcui@ahnu.edu.cn)

    DOI:10.3788/LOP56.073002

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology