Patent ID: 6251302
Filing Date: 2001-06-26
Classification: C09B

Abstract:
A method of detecting the fluorescent emission spectrum of a detection mixture, comprising the steps of:preparing said detection mixture by mixing a fluid said fluid comprising a polyalkylene glycol lubricant, with a 4-amino-1,8-napthalimide compound having the structural formula of: where: ##STR3##whereQ and Q' are propylene;Z and Z' are propyl, to form a detection mixture; andn and n' are between 9 and 10 when R and R' are ethylmethyl; and n and n' are between 5 and 15 when R and R' are methyl; and where n may or may not equal n';irradiating said detection mixture with a light sufficient to cause said detection mixture to emit a detectable fluorescent emission spectrum; anddetecting said fluorescent emission spectrum emitting from said detection mixture.