Sample collection device

Patent metadata

Field	Value
Publication number	US-11635353-B2
Application number	US-202016903647-A
Country	US
Kind code	B2
Filing date	Jun 17, 2020
Priority date	Jun 17, 2020
Publication date	Apr 25, 2023
Grant date	Apr 25, 2023

Abstract

A sample collection device is composed of a conductive polymer. The conductive polymer includes a mixture of carbon nanotubes and a polymer. The sample collection device has a hole at a tip of the sample collection device with the hole having a size ranging from about 0.15 mm to about 0.25 mm.

First claim

What is claimed is:

1. A sample collection device, comprising:
a sample collection cone comprised of conductive polymer, wherein the conductive polymer includes a mixture of carbon nanotubes and a polymer; and
wherein the sample collection cone has a hole having a diameter configured to retain sample media within the sample collection cone and allow solvent extraction after a solvent passes through the sample media within the sample collection cones;
wherein the hole diameter having a size ranging from 0.15 mm to 0.25 mm.

2. The sample collection device of claim 1 , wherein the sample collection cone is a multifaced pyramid or a cylindrical cone.

3. The sample collection device of claim 1 , wherein the sample collection device has a width that is large enough to hold a solid media sample, but small enough to remain portable while using the least amount of material as possible ranging from 12.5 mm to 40 mm.

4. The sample collection device of claim 1 , wherein the sample collection device has a height that is large enough to hold a solid media sample, but small enough to remain portable while using the least amount of material as possible ranging from 12.5 mm to 40 mm.

5. The sample collection device of claim 1 , wherein the sample collection device has a thickness large enough to hold a solid media sample, but small enough to retain the device's original shape while using the least amount of material as possible ranging from 0.6 mm to 3 mm.

6. The sample collection device of claim 1 , wherein the carbon nanotubes are multi-wall carbon nanotubes.

7. The sample collection device of claim 1 , wherein the polymer is selected from the group consisting of polyethylene terephthalate, acrylonitrile butadiene styrene, polylactic acid, polyetherketoneketone, polyether ether ketone, polycarbonate, polyphenylene sulfide, polyvinylidene fluoride, and combinations thereof.

8. A method for testing solid media composition, comprising:
preparing the sample collection device of claim 1 ;
filling the sample collections device of claim 1 with solid media containing an analyte;
applying a solvent to the solid media and applying a voltage to the sample collection device; and
performing a sample analysis, thereby determining an analyte composition, analyte concentration, or analyte presence within the solid media.

9. The method of claim 8 , wherein the voltage ranges from about 4 kV to about 7 kV.

10. The method of claim 8 , wherein the analyte includes a contaminant selected from the group consisting of perfluoroalkyl substances, polyfluoroalkyl substances, energetics, chemical warfare agent simulants, drugs of abuse, and combinations thereof.

11. The method of claim 8 , wherein the solid media is selected from the group consisting of soil, sand, sediment, waste, pure analytes, and combinations thereof.

12. The method of claim 8 , wherein the sample collection cone is a multifaced pyramid or a cylindrical cone.

13. The method of claim 8 , wherein the sample collection device has a width that is large enough to hold a solid media sample, but small enough to remain portable while using the least amount of material as possible ranging from 12.5 mm to 40 mm.

14. The method of claim 8 , wherein the sample collection device has a height that is large enough to hold a solid media sample, but small enough to remain portable while using the least amount of material as possible ranging from 12.5 mm to 40 mm.

15. The method of claim 8 , wherein the sample collection device has a thickness large enough to hold a solid media sample, but small enough to retain the device's original shape while using the least amount of material as possible ranging from 0:6 mm to 3 mm.

16. The method of claim 8 , wherein the carbon nanotubes are multi-wall carbon nanotubes.

17. The method of claim 8 , wherein the polymer is selected from the group consisting of polyethylene terephthalate, acrylonitrile butadiene styrene, polylactic acid, polyetherketoneketone, polyether ether ketone, polycarbonate, polyphenylene sulfide; polyvinylidene fluoride, and combinations thereof.

18. The method of claim 8 , wherein the sample analysis is performed using a Mass spectrometer or an ion mobility spectrometer.

19. The method of claim 8 , wherein the solvent is selected from the group consisting of methanol, ethanol, propanol, isopropanol, acetonitrile, water, water mixed with organic solvents, and combinations thereof.

20. The method of claim 19 , wherein the solvent further includes additives selected from the group consisting of acetic acid, formic acid, ammonium acetate, and combinations thereof.

Assignees

• Us Navy

Inventors

• Fedick Patrick W

Classifications

• B01L3/5029

  using swabs · CPC title

• G01N33/24 Primary

  Earth materials (G01N33/42 takes precedence) · CPC title

• G01N1/08 Primary

  involving an extracting tool, e.g. core bit · CPC title

• G01N2223/616

  earth materials · CPC title

• B01L2300/08

  Geometry, shape and general structure · CPC title