An improved analytical procedure for determination of total actual acidity (TAA) in acid sulfate soils

C Lin; K O'Brien; G Lancaster; LA Sullivan; D McConchie

doi:10.1016/s0048-9697(00)00572-6

An improved analytical procedure for determination of total actual acidity (TAA) in acid sulfate soils

Sci Total Environ. 2000 Oct 30;262(1-2):57-61. doi: 10.1016/s0048-9697(00)00572-6.

Authors

C Lin¹, K O'Brien, G Lancaster, LA Sullivan, D McConchie

Affiliation

¹ School of Resource Science and Management, Southern Cross University, Lismore, NSW, Australia.

PMID: 11059842
DOI: 10.1016/s0048-9697(00)00572-6

Abstract

An improved analytical procedure is proposed for the determination of total actual acidity (TAA) in acid sulfate soils. The proposed method involves the use of a superior extracting solution, 0.5 M BaCl2, instead of the 1 M NaCl used by Konsten et al. (Konsten CJM, Brinkman R, Andriesse W. A field laboratory method to determine total potential and actual acidity in acid sulfate soils. In: Dost H, editor. Selected papers of the Dakar Symposium on Acid Sulfate Soils. Wageningen: ILRI Publication 44, 1988:106-134.) and improved experimental design to obtain correction factors for calculating TAA. The introduction of a multi-choice procedure also enables increased accuracy of analytical results to be obtained if more accurate TAA estimation is required.