Surface-deposited particle and substance sampling, dilution and analysis device
AssigneeFundacion Universidad Del Norte
InventorsEduardo Egea Bermejo, Marco Sanjuan Mejia
Life of this patent
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Abstract
A device for sampling, diluting and analyzing particles and substances normally located on surfaces. The device includes a collection system which, through a rotating collecting surface and a scraper gathers the sample. The device also includes a tank-like storage system to store the diluting solution and a dilution chamber that permits the sample to mix with the solution and be diluted. This mixture is subsequently placed in contact with a detection system which is capable of discerning the presence or not of the substance being sampled.
Claims16
A substance sampling, dilution and detection device, comprising:
- a sample collection roller configured to transfer a sample from an exterior of the device to an interior of the device by rolling the sample collection roller, wherein the sample collection roller comprises a rotatable collection surface with a central axle;
- a dilution chamber operatively connected to the sample collection roller and disposed to receive the sample collected and a dilution liquid;
- a dilution liquid storage system operatively connected to the dilution chamber;
- and
- a detection system operatively connected to the dilution chamber and disposed to receive a mixture of the substance being sampled and the dilution liquid, in order to determine the presence of the substance being sampled;
- a scraper contacting the rotatable collection surface and configured to remove the sample from the sample collection roller while the sample collection roller rolls.
A method to analyze and detect the presence of a substance in a single device, comprising:
- collecting a sample by contacting the sample with a roller that comprises a rotatable collection surface with a central axle;
- rolling the sample from the exterior of the device to a dilution chamber with a scraper contacting the roller surface and removing the sample from the roller while the sample is on the roller;
- mixing the sample with a dilution liquid inside the dilution chamber;
- and
- exposing the sample-dilution liquid mixture to a detection member configured to detect the presence of the substance being sampled.
Dependencies are inferred from the claim text.