Environmental Express, Inc.

Joseph Martin Boyd

Edward Jino Kim

David Alan Smith

A thin film vessel useable in gravimetric methods for measuring the total dissolved solids or total solids in a liquid sample, or the moisture content of a solid sample. The vessel includes a main body formed of a thin walled polymeric material having a melting temperature greater than 180&#xb0; C. The main body comprises an open top edge and a sealed bottom edge which define an inner cavity configured to hold a volume of liquid, and indicia applied to a portion of the main body, wherein the indicia include a tare weight of the vessel.

Polymer total dissolved solids vessel

A one-piece solid phase extraction article to be used in solid phase extraction analysis, a filtration funnel comprising the one piece solid phase extraction article, and a method of use of the article. The article, device and method provide for improved analysis of hexane extractable material by eliminating the standard use of polar solvents to pre-condition the sorbent materials. The one-piece solid phase extraction article comprises water wettable monomeric phase type sorptive material embedded within a porous matrix. The water wettable monolithic polymeric sorptive material may be a hydrophilic polymeric gel, such as functionalized C-18 sorbent material, and the porous matrix may be fibrous matric, such as a glass fiber. The one-piece solid phase extraction article may further comprise one or more pre-filtration layers which do not contain the sorptive particles.

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Mount Pleasant, SC, United States of America

Joseph Martin Boyd