Gary L Emmert

US Patent:

8076652, Dec 13, 2011

Filed:

May 7, 2008

Appl. No.:

12/116887

Inventors:

Gary Lynn Emmert - Collierville TN, US

Assignee:

The University of Memphis Research Foundation - Memphis TN

International Classification:

G01N 30/20

US Classification:

2504581, 73 6156

Abstract:

Post-column reaction-ion chromatography (PCR-IC) analysis of drinking water samples for quantity measurements and species identification of haloacetic acid contaminants therein is provided. With the necessity to chlorinate drinking water to remove harmful bacteria and other potential toxins, haloacetic acid byproducts are generated that may harm humans after consumption as well. A reliable manner of measuring such drinking water supplies for haloacetic acids at locations far from the source and closer to dispensers is highly desirable. The PCR-IC analysis method of the invention has been found to be nearly as reliable as source measuring methods for the same purpose, but with the versatility to measure for such haloacetic acid contaminants anywhere along the drinking water supply line.

US Patent:

8336371, Dec 25, 2012

Filed:

May 7, 2008

Appl. No.:

12/116943

Inventors:

Gary Lynn Emmert - Collierville TN, US
Michael Andrew Brown - Memphis TN, US

Assignee:

University of Memphis Research Foundation - Memphis TN

International Classification:

G01N 30/84

US Classification:

73 6155, 73 6152

Abstract:

Separating trihalomethanes from drinking water samples (via a process such as capillary membrane sampling, and the like) followed by gas chromatograph analysis to determine quantity measurements and species identification of such trihalomethane (THM4) contaminants therein is provided. With the necessity to chlorinate drinking water to remove harmful bacteria and other potential toxins, trihalomethane byproducts are generated that may harm humans after consumption as well due to suspect carcinogenicity of such compounds. A reliable manner of measuring such drinking water supplies for such THM4 contaminants at locations far from the source and closer to dispensers is highly desirable. The ability to separate the THM4 from the drinking water sample, followed by a gas chromatography or like manner of quantifying and identifying the THM4 compounds possibly present within the drinking water sample has been found to be nearly as reliable as federally mandated source measuring methods for the same purpose, but with the versatility to measure for such trihalomethane contaminants anywhere along the drinking water supply line.

US Patent:

20090277256, Nov 12, 2009

Filed:

May 7, 2008

Appl. No.:

12/116816

Inventors:

Gary Lynn Emmert - Collierville TN, US
Michael Andrew Brown - Memphis TN, US
Gija Geme - Warrensburg MO, US

International Classification:

G01N 1/00

US Classification:

73 6456, 2504581

Abstract:

Capillary membrane sampling-flow injection analyzer (CMS-FIA) analyses of drinking water samples for quantity measurements of total trihalomethane and haloacetic acid contaminants therein are provided. With the necessity to chlorinate drinking water to remove harmful bacteria and other potential toxins, trihalomethane and haloacetic acid byproducts are generated that may harm humans after consumption as well. A reliable manner of measuring such drinking water supplies for such trihalomethane and/or haloacetic acids at locations far from the source and closer to dispensers is highly desirable. The CMS-FIA analysis method of the invention has been found to be nearly as reliable as source measuring methods for the same purpose, but with the versatility to measure for such trihalomethane and haloacetic acid contaminants anywhere along the drinking water supply line.

US Patent:

20150293070, Oct 15, 2015

Filed:

Jun 15, 2012

Appl. No.:

14/126809

Inventors:

Gary L. Emmert - Collierville TN, US
Yin Yee Choo - Memphis TN, US
Meggan Larson - Brooklyn Park MN, US
Patricia L. Ranaivo - Cordova TN, US

International Classification:

G01N 33/18
G01N 21/64

Abstract:

The present invention relates to the provision of a portable kit that permits reliable and quantifiable analysis of trihaloamethanes and haloacetic acids within drinking water samples utilizing a hand-held (portable) fluorescing detection instrument for simultaneous measurements of such species. With the necessity to chlorinate drinking water to remove harmful bacteria and other potential toxins, trihalomethane and haloacetic acid byproducts are generated during such a disinfecting procedure that may harm humans after consumption as well due to highly suspect carcinogenicity. A reliable manner of measuring such drinking water supplies for such disinfectant byproduct levels is highly desirable, particularly through the utilization of a relatively inexpensive analytical instrument for such a purpose. The inventive kit-based analytical method of the invention has been found to be nearly as reliable as source measuring methods for the same purpose, providing a relatively quick measuring method that may be undertaken at any drinking water source location.