Document Type

Thesis - Open Access

Award Date

1966

Degree Name

Master of Science (MS)

Department

Agronomy

Abstract

Determination of magnesium in soils has been studied extensively in the last half-century. The classical gravimetric method, based on precipitation of magnesium ammonium phosphate, has been replaced largely by faster and more convenient methods. Volumetric methods involving titration of Mg with various indicators were the first major changes. With advanced instrumentation, spectrophotometric and flame photometric methods have been used to determine Mg in soil extracts. All procedures mentioned have various disadvantages including color stability, foreign ion interference, equipment cost, and convenience. There was a need for a reliable, economical, and convenient method for determination of Mg in soil extracts. The purpose of this study was to examine fluorescence analysis as a fast and reliable method for determination of Mg in soil extracts. (see more in text)

Library of Congress Subject Headings

Magnesium
Soils -- Analysis
Photometry

Format

application/pdf

Publisher

South Dakota State University

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