ASCORBIC ACID AS A REDUCTANT FOR TOTAL PHOSPHORUS DETERMINATION IN SOILS
- 1 June 1968
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Soil Science
- Vol. 48 (2) , 217-218
- https://doi.org/10.4141/cjss68-028
Abstract
Ascorbic acid is as efficient and accurate as stannous chloride for the determination of total P. In the unreduced and reduced extracts, total P determined by the ascorbic acid method was 95-103% and 97-100% of that determined by the chlorostannous method. Recoveries of added P were excellent. The ascorbic acid method, in addition to having the advantages of stable color and sensitivity equal to that of the chlorostannous method, requires no reduction of the extract before determination of total P and can be used for many P determinations in soils.This publication has 0 references indexed in Scilit: