Method for detecting acid- and base-extractable markers

Details Method for detecting acid- and base-extractable markers Method for detecting acid- and base-extractable markers

1997-06-27

1999-10-05

Ludlow, Jan

Chemistry: analytical and immunological testing

Tracers or tags

436132, 436139, 436163, 436164, 436169, G01N 3332

Patent

active

059623306

ABSTRACT:
Markers which are soluble in petroleum fuel and are extractable from petroleum fuel by either acidic aqueous solutions or basic solutions and develop a color in the presence of the extracting acidic or basic aqueous solution, are identified by passing a specimen putatively containing the marker through an acidic resin column or a basic resin column, as the case may be.

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Webster's Ninth New Collegiate Dictionary, Merriam-Webster (1987) pp. 239, 347 and 476, 1987.

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