Detection of trace phosphorus in water by plasma amplification laser-induced breakdown spectroscopy.
Opt Express
; 31(24): 40345-40351, 2023 Nov 20.
Article
en En
| MEDLINE
| ID: mdl-38041338
ABSTRACT
For monitoring the extent of eutrophication in water, phosphorus (P) was detected by laser-induced breakdown spectroscopy (LIBS). A plasma amplification method was proposed and the filtered aerosol was guided to interact with the collinear laser in conjunction with a nebulizer, cyclonic spray chamber, and quartz tube. With this method, the length of the plasma was amplified from 5.27â¼8.73 to 17.58 mm. Moreover, the limit of detection (LoD) values of P in water improved from 6.13â¼17.75 to 3.60â
ppm. Furthermore, the average relative error (REAV) values reduced from 10.23â¼23.84 to 6.17%. The root mean square error of cross-validation (RMSECV) values decreased from 16.68â¼64.29 to 3.24â
ppm. This demonstrated that plasma amplification LIBS could improve the quantitative analysis performance of LIBS detection of trace phosphorus in water.
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MEDLINE
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En
Revista:
Opt Express
Asunto de la revista:
OFTALMOLOGIA
Año:
2023
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Article