The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 22, 1991
Filed:
Sep. 29, 1989
Carol A Dooley, San Diego, CA (US);
John P Testa, Jr, Oklahoma City, OK (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
Stable isotope-labelled tetra-n-butyl(124)tin was synthesized by the reaction of n-butylmagnesium bromide with .sup.124 SnCl.sub.4 and tri-n-butyltin bromide was synthesized by bromine cleavage of the tetraalkyltin. The tri-n-butyl(124)tin compound labelled with the stable isotope .sup.124 Sn is useable in environmental, chemical and biological applications to determine the fate, uptake and metabolism of tributyltin compounds. This determination is made by tracing the chemical, biological and physical processes by using gas chromatography(GC) and electron impact low resolution mass spectrometry(MS). The simplified spectra of the isotopically enriched compounds leads to a twofold increase in detection sensitivity by the GC and MS techniques.