Please use this identifier to cite or link to this item:
Title: Development of a field method for quantifying ammonium picrate and picric acid in soil and water
Authors: U.S. Army Environmental Center.
Thorne, Philip G.
Jenkins, Thomas F.
Keywords: Ammonium picrate
Picric acid
Field methods
Soil analysis
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Special report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 95-20.
Description: Special Report
Abstract: Methods for the detection and quantification of ammonium picrate and picric acid in soil and water were developed. Picrate ions were extracted from water directly or from acetone extracts of soil by solid-phase, acidic, ion-exchange materials. Elution from the ion exchangers was accomplished by converting the retained picrate to picric acid using strong aqueous, acid–organic solvent mixtures. The resulting colorless solution was then converted back to a colored picrate solution by dilution with water. Quantification and correction for background interferences were based on spectrophotometric measurements. A colorimetric, chemical confirmation of picrate was possible for the water method. The method detection limits were determined to be 1.3 μg/g for soil and 3.6 μg/L for water. Both methods can be implemented under field conditions.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Special Report

Files in This Item:
File Description SizeFormat 
SR-95-20.pdf147.62 kBAdobe PDFThumbnail