Preventing phosphorus losses during perchloric acid digestion of sodium bicarbonate soil extracts
作者： Philip C. Brookes , David S. Powlson
关键词:
摘要: Between 10 and 40% of P was lost during perchloric acid digestion NaHCO3 soil extracts for measurement organic P. This observation confirmed by 32P tracer experiments. Addition MgCl2 prevented loss, reduced variability replicate determinations ensured virtually 100% recovery added to solution before digestion. Losses were due both volatilisation conversion forms other than ortho-P in the mixture.
rothamsted.ac.uk
sci-hub.se 参考文章(3)
R. A. BOWMAN, C. V. COLE, An exploratory method for fractionation of organic phosphorus from grassland soils Soil Science. ,vol. 125, pp. 95- 101 ,(1978) , 10.1097/00010694-197802000-00006
J. Murphy, J.P. Riley, A modified single solution method for the determination of phosphate in natural waters Analytica Chimica Acta. ,vol. 27, pp. 31- 36 ,(1962) , 10.1016/S0003-2670(00)88444-5
G. E. G. Mattingly, M. Chater, Changes in organic phosphorus contents of soils from long-continued experiments at Rothamsted and Saxmundham. Rothamsted Experimental Station Report. pp. 41- 61 ,(1980) , 10.23637/ERADOC-1-34288