Methods and devices for measuring total polar compounds in...

Details Methods and devices for measuring total polar compounds in... Methods and devices for measuring total polar compounds in...

G - Physics

01

N

G01N 33/03 (2006.01) G01N 31/22 (2006.01)

Patent

CA 2296678

This invention relates to methods for determining whether or not to discard a sample of oil based on the presence of polar compounds in the oil and devices to be used therewith. In a preferred embodiment a test strip comprising an adsorbent affixed to a backing is spotted with a polar indicator. A sample of oil is positioned on a heat conducting device supporting the test strip and the oil is allowed to migrate over the adsorbent material thereby displacing the polar indicator in an amount related to the amount of polar compounds in the oil. This displacement is correlated to the amount of polar compounds in the sample.

L'invention concerne des procédés permettant de déterminer s'il faut rejeter ou non un échantillon de pétrole, selon la présence de composés polaires dans cet échantillon. L'invention concerne également des dispositifs destinés à être utilisés selon ces procédés. Dans un mode de réalisation préféré, une bandelette d'analyse est tachetée au moyen d'un indicateur polaire renfermant un adsorbant, fixé à un support. On place un échantillon de pétrole sur un dispositif thermoconducteur sur lequel repose ladite bandelette d'analyse, puis on laisse le pétrole migrer sur l'adsorbant, ce qui déplace une quantité d'indicateur polaire correspondant à la quantité de composés polaires présente dans le pétrole. On met alors en corrélation ce déplacement et la quantité de composés polaires présente dans ledit échantillon.

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