Volume No. 3 Issue No.: 3 Page No.: 607-613 Jan-Mar 2009

 

DETERMINATION OF ARSENIC IN WATER AND SEDIMENT FROM THAILAND USING INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY

 

S. Pansamut?1 and G. Wattayakorn2,3

1. Inter-Department of Environmental Science, Graduate School, Chulalongkorn University, Bangkok 10330 (THAILAND)
2. Department of Marine Science, Faculty of Science, Chulalongkorn University, Bangkok 10330 (THAILAND)
3. Aquatic Resources Research Institute, Chulalongkorn University, Bangkok 10330 (THAILAND)

 

Received on : November 16, 2008

 

ABSTRACT

 

A study has been conducted for the determination of arsenic in water and sediment collected from an abandoned tin mining area at Tambon Ong-pra, Amphoe Danchang, Suphanburi Province, in central Thailand. The catchment area comprises an abandoned tin mine and inhabitants of the region, with farming and livestock-raising as their main source of income. The concentration of arsenic in water and sediment samples in the abandoned tin mine was determined using Inductively Coupled Plasma Mass Spectrometry (ICP-MS) with emphasis on sample digestion and interference reduction procedures. Standard addition technique has been found to be an excellent method for reducing matrix effects. Contamination of total arsenic in water varied from 58 to 32,961 ?g/L, with the average arsenic concentration of 3,944 ?g/L, and total arsenic in sediment samples varied from 83 to 1,701 ?g/g, with the average arsenic concentration of 448

 

Keywords : Inductively Coupled Plasma Mass Spectrometry (ICP-MS), Tin mining, Arsenic contamination, Suphanburi Province.

 

 

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