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A calibration-free approach for on-site multi-element analysis of metal ions in aqueous solutions by electrodeposition-assisted underwater laser-induced breakdown spectroscopy

A calibration-free approach for on-site multi-element analysis of metal ions in aqueous solutions by electrodeposition-assisted underwater laser-induced breakdown spectroscopy
A calibration-free approach for on-site multi-element analysis of metal ions in aqueous solutions by electrodeposition-assisted underwater laser-induced breakdown spectroscopy
We investigate the possibility of on-site multi-element analysis of part-per-million order Cu2 + and Zn2 + in an aqueous solution by underwater laser-induced breakdown spectroscopy (underwater LIBS) of a Pt electrode on which Cu2 + and Zn2 + are electrodeposited in advance. Atomic emission lines of Cu and Zn are simultaneously observed. To apply a calibration-free LIBS (CF-LIBS) approach to the present system, we estimate the Zn/Cu ratio in the laser ablation plasma from the emission spectra. Although the Zn/Cu ratio in the deposit agrees with the ratio in the solution, the ratio in the plasma considerably deviates from the ratio in the deposit. We demonstrate the possibility of quantitative analysis even in such a case by correcting the deviation using a simple model considering heat propagation and thermal evaporation during liquid-phase laser ablation.
0584-8547
45-55
Matsumoto, Ayumu
189e9690-f8b7-449a-8ca6-ee3e88c99d64
Tamura, Ayaka
3f8146ef-01c2-43b6-9f4c-3f4650c3c144
Koda, Ryo
944478e7-80a6-4d6a-ae4e-5a485e2b4f03
Fukami, Kazuhiro
8df48c6e-64df-4e85-8a1b-85377be60550
Ogata, Yukio H.
8d0e8690-2bc6-4bca-acc2-60eb67f5388d
Nishi, Naoya
16b40aa6-df01-4bf7-9bf1-4508ca615686
Thornton, Blair
8293beb5-c083-47e3-b5f0-d9c3cee14be9
Sakka, Tetsuo
fd41ffee-1abd-46cb-99dc-94bb96aecc38
Matsumoto, Ayumu
189e9690-f8b7-449a-8ca6-ee3e88c99d64
Tamura, Ayaka
3f8146ef-01c2-43b6-9f4c-3f4650c3c144
Koda, Ryo
944478e7-80a6-4d6a-ae4e-5a485e2b4f03
Fukami, Kazuhiro
8df48c6e-64df-4e85-8a1b-85377be60550
Ogata, Yukio H.
8d0e8690-2bc6-4bca-acc2-60eb67f5388d
Nishi, Naoya
16b40aa6-df01-4bf7-9bf1-4508ca615686
Thornton, Blair
8293beb5-c083-47e3-b5f0-d9c3cee14be9
Sakka, Tetsuo
fd41ffee-1abd-46cb-99dc-94bb96aecc38

Matsumoto, Ayumu, Tamura, Ayaka, Koda, Ryo, Fukami, Kazuhiro, Ogata, Yukio H., Nishi, Naoya, Thornton, Blair and Sakka, Tetsuo (2016) A calibration-free approach for on-site multi-element analysis of metal ions in aqueous solutions by electrodeposition-assisted underwater laser-induced breakdown spectroscopy. Spectrochimica Acta Part B Atomic Spectroscopy, 118, 45-55. (doi:10.1016/j.sab.2016.02.005).

Record type: Article

Abstract

We investigate the possibility of on-site multi-element analysis of part-per-million order Cu2 + and Zn2 + in an aqueous solution by underwater laser-induced breakdown spectroscopy (underwater LIBS) of a Pt electrode on which Cu2 + and Zn2 + are electrodeposited in advance. Atomic emission lines of Cu and Zn are simultaneously observed. To apply a calibration-free LIBS (CF-LIBS) approach to the present system, we estimate the Zn/Cu ratio in the laser ablation plasma from the emission spectra. Although the Zn/Cu ratio in the deposit agrees with the ratio in the solution, the ratio in the plasma considerably deviates from the ratio in the deposit. We demonstrate the possibility of quantitative analysis even in such a case by correcting the deviation using a simple model considering heat propagation and thermal evaporation during liquid-phase laser ablation.

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More information

Accepted/In Press date: 2 February 2016
e-pub ahead of print date: 6 February 2016
Published date: 1 April 2016
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 400006
URI: http://eprints.soton.ac.uk/id/eprint/400006
ISSN: 0584-8547
PURE UUID: e6e7ca09-fddf-41b2-8f88-e952479b9f1f

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Date deposited: 06 Sep 2016 15:34
Last modified: 08 Jan 2022 06:32

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Contributors

Author: Ayumu Matsumoto
Author: Ayaka Tamura
Author: Ryo Koda
Author: Kazuhiro Fukami
Author: Yukio H. Ogata
Author: Naoya Nishi
Author: Blair Thornton
Author: Tetsuo Sakka

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