Method for detecting a tagging compound

Claim 1

A method for detecting a tagging compound having a structure selected from the group consisting of: ##STR5## wherein x is an integer between 0 and 3 inclusive, y is an integer between 1 and 3 inclusive, and z is 0 or 1, and ##STR6## wherein R is selected from linear or branched hydrocarbons having from 1 to about 5 carbon atoms, comprising the steps of: A. providing a sample suspected to contain said tagging compound; B. contacting said sample with a reagent comprising: i. from about 20 weight percent to about 60 weight percent glycerine; ii. from about 20 weight percent to about 40 weight percent water; and iii. from about 10 weight percent to about 50 weight percent of an organic primary amine to form an admixture therewith; C. allowing the admixture to form a sample phase and a reagent phase; and D. determining whether said reagent phase develops a substantially bluish red or red color, thereby indicating the presence of said tagging compounds.

Claim 2

A method for detecting a tagging compound having a structure selected from the group consisting of: ##STR5## wherein x is an integer between 0 and 3 inclusive, y is an integer between 1 and 3 inclusive, and z is 0 or 1, and ##STR6## wherein R is selected from linear or branched hydrocarbons having from 1 to about 5 carbon atoms, comprising the steps of: A. providing a sample suspected to contain said tagging compound; B. contacting said sample with a reagent comprising: i. from about 20 weight percent to about 60 weight percent glycerine; ii. from about 20 weight percent to about 40 weight percent water; and iii. from about 10 weight percent to about 50 weight percent of an organic primary amine to form an admixture therewith; C. allowing the admixture to form a sample phase and a reagent phase; and D. determining whether said reagent phase develops a substantially bluish red or red color, thereby indicating the presence of said tagging compounds.

Claim 3

A method for detecting a tagging oompound having a structure selected from a group consisting of: ##STR7## wherein x is an integer between 0 and 3 inclusive, y is an integer between 1 and 3 inclusive, and z is 0 or 1 and ##STR8## wherein R is selected from linear or branched hydrocarbons having from 1 to about 5 carbon atoms, and mixtures thereof, comprising the steps of: A. providing a sample of an organic liquid suspected to contain said tagging compound; B. passing said sample through an activated alumina chromatographic column; C. washing said organic liquid from said column with a solvent therefor; D. washing the natural colors of said organic liquid from said column with a solvent therefor; and E. determining whether a substantially purple zone is formed in said column, thereby indicating the presence of said tagging compounds.

Claim 4

A method for detecting a tagging oompound having a structure selected from a group consisting of: ##STR7## wherein x is an integer between 0 and 3 inclusive, y is an integer between 1 and 3 inclusive, and z is 0 or 1 and ##STR8## wherein R is selected from linear or branched hydrocarbons having from 1 to about 5 carbon atoms, and mixtures thereof, comprising the steps of: A. providing a sample of an organic liquid suspected to contain said tagging compound; B. passing said sample through an activated alumina chromatographic column; C. washing said organic liquid from said column with a solvent therefor; D. washing the natural colors of said organic liquid from said column with a solvent therefor; and E. determining whether a substantially purple zone is formed in said column, thereby indicating the presence of said tagging compounds.