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A method for the identification and quantitation of hydraulic fluid contamination of turbine engine oils by gas chromatography–chemical ionisation mass spectrometry
Author(s) -
Webster Renée L.,
Evans David J.,
Rawson Paul M.
Publication year - 2012
Publication title -
lubrication science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.632
H-Index - 36
eISSN - 1557-6833
pISSN - 0954-0075
DOI - 10.1002/ls.1194
Subject(s) - contamination , hydraulic fluid , mass spectrometry , chromatography , gas chromatography , calibration curve , gas chromatography–mass spectrometry , chemistry , turbine , environmental science , detection limit , hydraulic machinery , engineering , mechanical engineering , ecology , biology
The identification of aircraft hydraulic fluid contamination of turbine engine oils is difficult. Repeated field incidents of this type of cross contamination have led to the requirement to develop a method suitable for quantitation of such contamination. A gas chromatography–chemical ionisation mass spectrometry method for the determination of H‐537 hydraulic fluid contamination in turbine engine oil was developed and validated. The intraday and interday relative standard deviations of the standards were 3–7% and 5–9%, respectively. Mean recoveries of hydraulic fluid in turbine engine oil were 90–94%, and the calibration curve was linear with R 2 = 0.999. Limits of detection and quantitation were 0.05% (w/w) and 0.5% (w/w), respectively. The method was successfully applied to laboratory degraded samples and field samples. Copyright © 2012 John Wiley & Sons, Ltd.