Kenneth A. Blake - Elkhart IN Chauncey O. Rupe - Elkhart IN Carol A. Terry - Cassopolis MI
Assignee:
Environmental Test Systems, Inc. - Elkhart IN
International Classification:
G01N 3300
US Classification:
436111
Abstract:
A test method and device is described for determining biguanides in aqueous fluids such as swimming pool water which involve contacting the fluid with a matrix incorporating a pH sensitive indicator material which exhibits the biguanide error effect. A buffer is advantageously used to maintain the test system within a defined constant pH range to eliminate the effect of pH changes on the test system.
Test Devices And Methods For Determining Halides In Aqueous Samples
A test device and method of use for determination of aqueous halide ions is described. The device has a porous matrix containing a silver dichromate reagent that gives a colorimetric response in the presence of halide ions and a cationic substance that prevents the formation of silver oxide products. The cationic substance has no colorimetric response in the presence of halide ions that would interfere with the measurement of the colorimetric change of the silver dichromate reagent.
Gwinett County Medical Examiner 363 Swanson Dr STE A, Lawrenceville, GA 30043 (770)9955558 (phone), (770)9956746 (fax)
Education:
Medical School Emory University School of Medicine Graduated: 1990
Languages:
English Spanish
Description:
Dr. Terry graduated from the Emory University School of Medicine in 1990. She works in Lawrenceville, GA and specializes in Anatomic Pathology & Clinical Pathology and Forensic Pathology.