Sample preparation device and method utilizing polyamide tube
AssigneeAgilent Technologies, Inc.
InventorsRobert Lee Grenz, William Christopher Hundson
Life of this patent
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Abstract
Polyamide sample preparation tubes with a hollow polyamide tube and an extraction medium contained within the tube are utilized in the sample preparation devices. The sample preparation tubes are substantially inert and show little tendency to dissolve or leach contaminants into nonaqueous liquids. The polyamide tubes may be used in preparing samples for analytical procedures such as GC, GC/MS, LC or LC/MS.
Claims19
A sample preparation device comprising:
- a hollow polyamide tube, having an inlet and an outlet, an inlet-side fritted glass filter and an outlet-side fritted glass filter contained within the tube;
- and
- an extraction medium contained between said inlet-side fritted glass filter and said outlet-side fritted glass filter.
A well plate format comprising a multiplicity of sample preparation devices, each comprising:
- a hollow polyamide tube, having an inlet and an outlet, an inlet-side fritted glass filter and an outlet-side fritted glass filter contained within the tube;
- a polyamide screen between the inlet-side fritted glass filter and the inlet;
- and
- an extraction medium contained between said inlet-side fritted glass filter and said outlet-side fritted glass filter, wherein said polyamide is nylon.
A method of making a device for sample preparation comprising:
- providing a hollow polyamide tube, having an inlet and an outlet;
- placing an inlet-side fritted glass filter and an outlet-side fritted glass filter within said tube;
- and
- filling in an extraction medium into the tube between said inlet-side and said outlet-side fritted glass filter with.
Dependencies are inferred from the claim text.