FTIR ABSORPTION SPECTROSCOPY is an ideal analytical technique to characterise new, used and diluted motor oils, as well various other samples.
Service oils, like Castrol’s Magnatec engine oil, are designed to minimise wear-and-tear in engines.
After a while, the oils pick up elemental metals, soot and other contaminants which turn the fresh yellow oil into a dark and worn black.
IR spectral analysis can help determine which contaminants are present, as well as what kind of chemical degradation occurs in the oil.
Traditionally, a vertically mounted cell was always the standard method of loading viscous or sticky fluids, which posed many problems including sample introduction and clean up. However, The PearlTM liquid transmission accessory is designed to make the IR spectral measurement of liquids quick, easy and highly repeatable.
Equipment and Samples
The PearlTM accessory (P/N GS31000-B) was used in conjunction with fully-wedged ZnSe windows in the Oyster Cell. Three different pathlengths were used; 25, 50 and 100 microns. See the part numbers in Table 1.
>> Download the full Application Note as PDF
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