Abstract
A conventent and rapid direct infrared method for determining 4-methyl-2,6-ditertiarybutylphenol in mineral oil has been developed that uses the 2.74-micron hydroxyl band. The spectrum of the sample is recorded between 2.65 and 2.85 microns to obtain a pair of absorbances from which the phenol concentration is determined. The corresponding phenol-free oil is not needed, and no sample preparation is required when other substances containing the hydroxyl group are absent. The method is accurate to 0.01% phenol; instrument time is about five minutes.
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription