QUANTITATIVE DETERMINATION OF 1, 2-ETHANEDIOL CONTAMINATION IN USED DIESEL LUBRICATING OILS BY GAS CHROMATOGRAPHY/MASS SPECTROMETRY

Authors
  1. Hiltz, J.A.
  2. Power, J.J.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
A quantitative method for the determination of 1,2-ethanediol (ethylene glycol) in used diesel lubricating oils is described. The method involves derivatization of the glycol with a proprietary silylating reagent, TRISYLTMZ, to improve the chromatography of the glycol on a non-polar capillary column. Separation, detection and quantitative analysis of the trimethylsilyl derivative of the glycol, namely, 2,2,7,7-tetramethyl-3, 6-dioxa-2, 7-disilaoctane, was carried out using capillary gas chromatography/mass spectrometry. The response of the trimethylsilyl derivative of 1,2-ethanediol was found to be linear over the concentration range studied, that is, from 10 parts per million (ppm) to 10000 ppm (0.001% to 1.0%) by weight 1,2-ethanediol in diesel lubricating oil. The minimum detectable quantity of the derivative, using the conditions described in the text, was found to be approximately 2 ppm by weight.
Report Number
DREA-TM-89-227 — Technical Memorandum
Date of publication
15 Dec 1989
Number of Pages
23
DSTKIM No
90-01103
CANDIS No
63374
Format(s):
Hardcopy;Originator's fiche received by DSIS

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