Sample Collector and Processor
First Claim
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1. An aerosol sample collector comprising:
- (a) an air flow path comprising;
(i) at a first segment thereof, a particle charging device; and
(ii) at a second segment thereof, deflection plates configured to focus particles of a desired charge into a preselected cross-section of the air flow path;
(b) charged substrates arranged at an outflow portion of the air flow path to collect charged particles on a collection surface of the charged substrates;
(c) an exit path for flowing particles not in the preselected cross-section of the air flow path away from the charged substrates.
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Abstract
An aerosol sample collector with an air flow path comprising: (i) at a first segment thereof, a particle charging device, and (i) at a second segment thereof, deflection plates configured to focus particles of a desired charge into a preselected cross-section of the air flow path. The air flow path also includes charged substrates arranged at an outflow portion of the air flow path to collect charged particles on a collection surface of the charged substrates; and an exit path for flowing particles not in the preselected cross-section of the air flow path away from the charged substrates. Related methods are also provided.
93 Citations
26 Claims
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1. An aerosol sample collector comprising:
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(a) an air flow path comprising; (i) at a first segment thereof, a particle charging device; and (ii) at a second segment thereof, deflection plates configured to focus particles of a desired charge into a preselected cross-section of the air flow path; (b) charged substrates arranged at an outflow portion of the air flow path to collect charged particles on a collection surface of the charged substrates; (c) an exit path for flowing particles not in the preselected cross-section of the air flow path away from the charged substrates. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus comprising:
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(a) a substrate comprising a charged collection surface for collecting particles, wherein the charged collection surface comprises droplet operations electrodes associated therewith and serves as a droplet operations surface for droplet operations conducted by the electrodes; and (b) a means for flowing particle-containing gaseous source material into contact with the collection surface.
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9. A method of collecting particles, the method comprising:
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(a) flowing air along a gaseous source material comprising the particles along a flow path; (b) charging particles in the gaseous source material; (c) using deflection plates appropriately positioned to focus the particles into a predetermined cross-section of the flow path; and (d) collecting the particles onto a charged substrate while flowing gaseous source material not in the predetermined cross-section away from the charged substrate. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification