Detection of trace amount of arsenic in groundwater by laser-induced breakdown spectroscopy and adsorption

A. F M Y Haider, M. Hedayet Ullah, Z. H. Khan, Firoza Kabir, K. M. Abedin

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

LIBS technique coupled with adsorption has been applied for the efficient detection of arsenic in liquid. Several adsorbents like tea leaves, bamboo slice, charcoal and zinc oxide have been used to enable sensitive detection of arsenic presence in water using LIBS. Among these, zinc oxide and charcoal show the better results. The detection limits for arsenic in water were 1 ppm and 8 ppm, respectively, when ZnO and charcoal were used as adsorbents of arsenic. To date, the determination of 1 ppm of As in water is the lowest concentration of detected arsenic in water by the LIBS technique. The detection limit of As was lowered to even less than 100 ppb by a combination of LIBS technique, adsorption by ZnO and concentration enhancement technique. Using the combination of these three techniques the ultimate concentration of arsenic was found to be 0.083 ppm (83 ppb) for arsenic polluted water collected from a tube-well of Farajikandi union (longitude 90.64, latitude 23.338 north) of Matlab Upozila of Chandpur district in Bangladesh. This result compares fairly well with the finding of arsenic concentration of 0.078 ppm in the sample by the AAS technique at the Bangladesh Council of Scientific and Industrial Research (BCSIR) lab. Such a low detection limit (1 ppm) of trace elements in liquid matrix has significantly enhanced the scope of LIBS as an analytical tool.

Original languageEnglish
Pages (from-to)299-303
Number of pages5
JournalOptics and Laser Technology
Volume56
DOIs
Publication statusPublished - 2014

Fingerprint

Laser induced breakdown spectroscopy
laser-induced breakdown spectroscopy
Arsenic
ground water
arsenic
Groundwater
Adsorption
adsorption
charcoal
Charcoal
Bangladesh
Water
Zinc Oxide
water
Zinc oxide
adsorbents
zinc oxides
Adsorbents
Industrial research
unions

Keywords

  • Adsorbent
  • Arsenic
  • ZnO

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics

Cite this

Detection of trace amount of arsenic in groundwater by laser-induced breakdown spectroscopy and adsorption. / Haider, A. F M Y; Hedayet Ullah, M.; Khan, Z. H.; Kabir, Firoza; Abedin, K. M.

In: Optics and Laser Technology, Vol. 56, 2014, p. 299-303.

Research output: Contribution to journalArticle

Haider, A. F M Y ; Hedayet Ullah, M. ; Khan, Z. H. ; Kabir, Firoza ; Abedin, K. M. / Detection of trace amount of arsenic in groundwater by laser-induced breakdown spectroscopy and adsorption. In: Optics and Laser Technology. 2014 ; Vol. 56. pp. 299-303.
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