Determination of a Jet Fuel Metal Deactivator by High Performance Liquid Chromatography
Abstract
This technical report describes an analytical method that qualitatively identifies and quantitatively determines a metal deactivator additive used in Air Force JP-4 jet fuel. Relative retention time calculations, together with ultraviolet absorbance ratios at various wavelengths, were highly specific in assigning the tentative identification of the additive. A recovery standard that doubled as the internal reference standard for relative retention time measurements was crucial in correcting the found metal deactivator ppm level for losses in sample transfer, sample concentration, dilution, etc. A precision statement, reflecting the quantitative reliability of the method, cited +/- 0.5 ppm as the 95% confidence intervals for the true value of the predicted amount from the calibration curve for the metal deactivator in the 20- 150 ppm range, after a 20-fold fuel concentration step. This crucial concentration step was necessary since the metal deactivator was at a level specified not to exceed 5.8 mg/liter, i.e. 5.8 parts per million (weight/volume) in JP-4 fuel.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1983
- Accession Number
- ADA132220
Entities
People
- Paul C. Hayes Jr.
Organizations
- Wright Laboratory