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A Simple Novel Method for the Analysis of Lubricating Oil Additives by the Use of Sep‐Pak Cartridges
Author(s) -
Wu YiShuen,
Yang MeiHui,
Lin ChingErh
Publication year - 1985
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.198500010
Subject(s) - chemistry , cartridge , chromatography , elution , extraction (chemistry) , solvent , analytical chemistry (journal) , organic chemistry , mechanical engineering , engineering
Abstract In combination with the use of SEP‐PAK cartridges and computerized difference infrared spectroscopic technique, a simple novel method for analyzing lubricating oil additives was developed. The present method involves solvent extraction and the use of SEP‐PAK C 18 for separating polar additives from residual base oil, followed by the use of SEP‐PAK Silica for further elution. With the aid of infrared data station, components of the polar additives were identified. The present method is definitely much more rapid and efficient than the conventional column separation method, and the separation efficiency of this simple method is comparable to that of using flash chromatographic technique.