Add time:07/13/2019         Source:sciencedirect.com

A GLC method is presented for the quantitative determination of menthol, phenol, benzocaine, and PYRILAMINE MALEATE (cas 59-33-6). The propellent was exhausted from a pressurized can, and an aliquot of the alcoholic base was weighed. After the addition of the internal standard diluted with chloroform, 1 μl of the mixture was injected in the chromatograph with a flame-ionization detector and a glass column packed with 2.5% OV-225. Average recoveries, were 100.3 ± 1.4, 100.0 ± 1.4, 101.3 ± 1.5, and 101.5 ± 1.5% for menthol, phenol, benzocaine, and pyrilamine maleate, respectively.

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