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Title: Analytical method for determining tetrazene in soil
Authors: U.S. Army Toxic and Hazardous Materials Agency.
Walsh, Marianne E.
Jenkins, Thomas F.
Keywords: Analytical methods
Soil extraction
Contaminated soils
High-performance liquid chromatography
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.)) ; 88-15.
Description: Special Report
Abstract: An ion-pairing RP-HPLC method was developed to determine tetrazene in soil. The method involves extracting a 2-g soil sample with 50 mL of a solvent containing 55/45 v/v methanol-water and 1-decanesulfonic acid, sodium salt at 0.01 M concentration. The soil and extracting solvent are vortexed for 15 s and shaken on a platform orbital shaker for a period up to 5 hr. The extract is filtered through a 0.5-~m Millex SR filter and analyzed. Determination was achieved using an LC-18 column, a mobile phase of 2/3 v/v methanol-water containing 1-decanesulfonic acid, sodium salt at 0.01 M concentration, and a UV detector set at 280 nm. The mobile phase pH was adjusted to 3 with glacial acetic acid, which was optimal for separation of tetrazene from potential interferences by other explosives. Retention time was 2.8 min. Kinetic studies show maximum tetrazene recoveries are achieved from undried soil within 5 hr of shaking at room temparature. Refrigeration is required for extracts that are not analyzed immediately. Note: The symbol ~ is used to indicate the presence of a mathematical or scientific symbol which could not be rendered by the character set of this system. The downloaded file will contain the missing symbols.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Special Report

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