Comparative Evaluation of Inductively Coupled Plasma-Optical Emission Spectrometry and Colorimetry for Determining Phosphorus in Grain Samples

Sahrawat, K L and Chaudhury, S and Srinivasu, K and Wani, S P (2016) Comparative Evaluation of Inductively Coupled Plasma-Optical Emission Spectrometry and Colorimetry for Determining Phosphorus in Grain Samples. Communications in Soil Science and Plant Analysis, 47 (7). pp. 818-821. ISSN 0010-3624 (Submitted)

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Abstract

The inductively coupled plasma (ICP)-based method provides the opportunity to determine phosphorus (P) along with other major, secondary, micro and trace elements in plant materials. This study was conducted to compare and evaluate the relative efficacy of the inductively coupled plasma-optical emission spectrometry (ICP-OES) method with that of the colorimetric method using Skalar autoanalyzer, for determining P in 428 grain samples of eight diverse crops. The results on grain P analysis by the two methods, for individual as well as for all crop samples combined, showed that they were highly positively correlated (r varied from 0.84 to 0.98, p < 0.0001 for the eight crops, and R2 for all crop grain samples was 0.9201, p < 0.0001). Moreover, the precision by the ICP method was similar to that determined by the Skalar method. Our results demonstrate that the ICP-OES method can be conveniently used for determining P along with other plant nutrient elements in grain samples of diverse crops.

Item Type:	Article
Divisions:	RP-Resilient Dryland Systems
CRP:	UNSPECIFIED
Uncontrolled Keywords:	Colorimetric method, ICP-OES, phosphorus in grain, precision
Subjects:	Others > Soil Others > Soil Science
Depositing User:	Mr Ramesh K
Date Deposited:	19 Apr 2018 04:49
Last Modified:	19 Apr 2018 04:49
URI:	http://oar.icrisat.org/id/eprint/10597
Official URL:	http://dx.doi.org/10.1080/00103624.2016.1146895
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	UNSPECIFIED
Links:	Google Scholar

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