Skip to main content
SpringerLink
Log in

Detection of Pb in Tieguanyin tea and ash by laser-induced breakdown spectroscopy

  • Published:
Optoelectronics Letters Aims and scope Submit manuscript

Abstract

In this work, laser-induced breakdown spectroscopy (LIBS) was applied for the detection of Pb in Tieguanyin tea and ash. Firstly, the Tieguanyin tea and ash containing Pb were prepared, and the difference of intensities of Pb I spectral lines before and after the ashing treatment was studied. It was found that the intensities of Pb I lines increased by 30 times and the standard deviation of background signal decreased by 41% after the ashing treatment. Therefore, the enrichment of Pb element by ashing treatment was used to detect Pb in tea with high sensitivity. Then, the calibration curve of Pb was established using spectral lines without self-absorption, and the determination coefficient (R2) for the linear fitting of calibration curve was 0.979 9. Finally, it was found that the limit of detection of Pb was 233.8 ppb. Compared with the results of other works which detect Pb directly, the enrichment of Pb by ashing treatment improved the detection sensitivity of Pb by about 200 times. In addition, this method can be applied to the high sensitivity detection of other heavy metals, such as Cr, Cd, Hg, etc in plants, Chinese herbal medicine, flour, rice, coal and other solid materials.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. REHAN I, GONDAL M A, ALDAKHEEL R K, et al. Determination of nutritional and toxic metals in black tea leaves using calibration free LIBS and ICP: AES technique[J]. Arabian journal for science and engineering, 2022, 47: 7531–7539.

    Article  Google Scholar 

  2. ZHANG M, ZHANG X, HO C T, et al. Chemistry and health effect of tea polyphenol[J]. Journal of agricultural and food chemistry, 2019, 67(19): 5374–5378.

    Article  Google Scholar 

  3. GONDAL M A, DASTAGEER M A, AL-ADEL F F, et al. Detection of highly toxic elements (lead and chromium) in commercially available eyeliner (kohl) using laser induced break down spectroscopy[J]. Optics and laser technology, 2015, 75: 99–104.

    Article  ADS  Google Scholar 

  4. YANG P, ZHOU R, ZHANG W, et al. High-sensitivity determination of cadmium and lead in rice using laser-induced breakdown spectroscopy[J]. Food chemistry, 2019, 272: 323–328.

    Article  Google Scholar 

  5. ZHOU R, LIU K, TANG Z Y, et al. Determination of micronutrient elements in soil using laser-induced breakdown spectroscopy assisted by laser-induced fluorescence[J]. Journal of analytical atomic spectrometry, 2021, 36(3): 614–621.

    Article  Google Scholar 

  6. STENIO K, COSTA V C, DE MORAIS C P, et al. Direct determination of nutrient elements in plant leaves by double pulse laser-induced breakdown spectroscopy: evaluation of calibration strategies using direct and inverse models for matrix-matching[J]. Analytical methods, 2022, 14(12): 1246–1253.

    Article  Google Scholar 

  7. JIN M T, YUAN H, LIU B, et al. Review of the distribution and detection methods of heavy metals in the environment[J]. Analytical methods, 2020, 12(48): 5747–5766.

    Article  Google Scholar 

  8. REHAN I, REHAN K, KHAN M Z, et al. Detection of nutritional and toxic elements in Pakistani pepper powders using laser induced breakdown spectroscopy[J]. Analytical methods, 2020, 12(20): 2590–2598.

    Article  Google Scholar 

  9. GONDAL M A, HABIBULLAH Y B, BAIG U, et al. Direct spectral analysis of tea samples using 266 nm UV pulsed laser-induced breakdown spectroscopy and cross validation of LIBS results with ICP-MS[J]. Talanta, 2016, 152: 341–352.

    Article  Google Scholar 

  10. LU X, LIU Y Z, ZHANG Q H, et al. Study on tea harvested in different seasons based on laser-induced breakdown spectroscopy[J]. Laser physics letters, 2020, 17(1): 015701.

    Article  ADS  Google Scholar 

  11. WANG J, SHI M, ZHENG P, et al. Quantitative analysis of lead in tea samples by laser-induced breakdown spectroscopy[J]. Journal of applied spectroscopy, 2017, 84(1): 188–193.

    Article  ADS  Google Scholar 

  12. YANG X Y, HAO Z Q, LI C M, et al. Sensitive determinations of Cu, Pb, Cd, and Cr elements in aqueous solutions using chemical replacement combined with surface-enhanced laser-induced breakdown spectroscopy[J]. Optics express, 2016, 24(12): 13410–13417.

    Article  ADS  Google Scholar 

  13. WU M F, WANG X, NIU G H, et al. Ultrasensitive and simultaneous detection of multielements in aqueous samples based on biomimetic array combined with laser-induced breakdown spectroscopy[J]. Analytical chemistry, 2021, 93(29): 10196–10203.

    Article  Google Scholar 

  14. DE GIACOMO A, KORAL C, VALENZA G, et al. Nanoparticle enhanced laser-induced breakdown spectroscopy for microdrop analysis at subppm level[J]. Analytical chemistry, 2016, 88(10): 5251–5257.

    Article  Google Scholar 

  15. ZHU C W, TANG Z Y, LI Q Z, et al. Lead of detection in rhododendron leaves using laser-induced breakdown spectroscopy assisted by laser-induced fluorescence[J]. Science of the total environment, 2020, 738: 139402.

    Article  ADS  Google Scholar 

  16. BURAKOV V S, TARASENKO N V, NEDELKO M I, et al. Analysis of lead and sulfur in environmental samples by double pulse laser induced breakdown spectroscopy[J]. Spectrochimica acta part B-atomic spectroscopy, 2009, 64(2): 141–146.

    Article  ADS  Google Scholar 

  17. ZHAO S Y, SONG C, GAO X, et al. Quantitative analysis of Pb in soil by femtosecond-nanosecond double-pulse laser-induced breakdown spectroscopy[J]. Results in physics, 2019, 15: 102736.

    Article  Google Scholar 

  18. AKHTAR M, JABBAR A, AHMED N, et al. Analysis of lead and copper in soil samples by laser-induced breakdown spectroscopy under external magnetic field[J]. Applied physics B-lasers and optics, 2019, 125(6): 110.

    Article  ADS  Google Scholar 

  19. MENG D S, ZHAO N J, MA M J, et al. Heavy metal detection in soils by laser induced breakdown spectroscopy using hemispherical spatial confinement[J]. Plasma science & technology, 2015, 17(8): 632–637.

    Article  ADS  Google Scholar 

  20. LI X F, ZHOU W D, LI K X, et al. Laser ablation fast pulse discharge plasma spectroscopy analysis of Pb, Mg and Sn in soil[J]. Optics communications, 2012, 285(1): 54–58.

    Article  ADS  Google Scholar 

  21. WANG X S, WAN S S, HE Y G, et al. Rapid determination of all element in MAPbI3 thin films using laser induced breakdown spectroscopy[J]. Spectrochimica acta part B-atomic spectroscopy, 2021, 178: 106123.

    Article  Google Scholar 

  22. GORNUSHKIN I B, ANZANO J M, KING L A, et al. Curve of growth methodology applied to laser-induced plasma emission spectroscopy[J]. Spectrochimica acta part B-atomic spectroscopy, 1999, 54(3–4): 491–503.

    Article  ADS  Google Scholar 

  23. ARAGON C, PENALBA F, AGUILERA J A. Curves of growth of neutral atom and ion lines emitted by a laser induced plasma[J]. Spectrochimica acta part B-atomic spectroscopy, 2005, 60(7–8): 879–887.

    Article  ADS  Google Scholar 

  24. LU X, LIU Y Z, ZHANG Q H, et al. Study on tea harvested in different seasons based on laser-induced breakdown spectroscopy[J]. Laser physics letters, 2020, 17(1): 8.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Tianjin Key Laboratory of Quantum Optics and Intelligent Photonics, School of Science, Tianjin University of Technology, Tianjin, 300384, China

    Jingwen Li, Lixing Yao, Li Shen & Cong Wang

Authors
  1. Jingwen Li
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Lixing Yao
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Li Shen
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Cong Wang
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding authors

Correspondence to Li Shen or Cong Wang.

Ethics declarations

Conflicts of interest

The authors declare no conflict of interest.

Additional information

This work has been supported by the National Undergraduate Training Programs for Innovation and Entrepreneurship (No.202110060008).

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Li, J., Yao, L., Shen, L. et al. Detection of Pb in Tieguanyin tea and ash by laser-induced breakdown spectroscopy. Optoelectron. Lett. 20, 116–121 (2024). https://doi.org/10.1007/s11801-024-3080-y

Download citation

  • Received:

  • Revised:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11801-024-3080-y

Document code

Search

Navigation