HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Abstract Full Text Free Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in Web of Science Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Web of Science (25) Citing Articles via Google Scholar Google Scholar Articles by Shiowatana, J. Articles by Samphao, A. Search for Related Content PubMed PubMed Citation Articles by Shiowatana, J. Articles by Samphao, A. GeoRef GeoRef Citation Agricola Articles by Shiowatana, J. Articles by Samphao, A. Related Collections Heavy Metals Soil Pollution Soil Analysis

Fractionation of Arsenic in Soil by a Continuous-Flow Sequential Extraction Method

^a Dep. of Chemistry, Mahidol Univ., Rama VI Road, Bangkok 10400, Thailand
^b Centre for Soil and Environmental Quality, Soil and Physical Sciences Group, P.O. Box 84, Lincoln Univ., Canterbury, New Zealand

View larger version (24K): [in a new window]   Fig. 1. The continuous-flow extraction system.

View larger version (15K): [in a new window]   Fig. 2. Continuous-flow As extractogram for standard reference material (SRM) 2711 (solid line). Elapsed time shown as dotted line; subfraction volume = 30 mL.

View larger version (36K): [in a new window]   Fig. 3. Comparison of As fraction distribution in certified reference materials (CRMs) as determined by batch and continuous-flow techniques.

View larger version (49K): [in a new window]   Fig. 4. Comparison of As fraction distribution in soils from Ronphiboon, Thailand as determined by batch and continuous-flow techniques.

View larger version (44K): [in a new window]   Fig. 5. Comparison of As fraction distribution in soils from cattle dip sites in Australia as determined by batch and continuous-flow techniques.

View larger version (29K): [in a new window]   Fig. 6. Extractograms for As, Ca, Fe, and Al for Lindendale (20–40 cm) and Benaud (0–10 cm) cattle dip soils, and soil from a tin-mining factory.