| 摘要 |
A portable tester to detect one or more analytes from explosives, drugs, or household chemicals, comprising: a plurality of chemical disposable, detachable reagent reservoirs storing reagents to induce a series of color reactions, wherein developed color depends on sequences of applied reagents to respective pads on a support base, reaction times and temperatures on said pad to create one or more color bar codes for a specific analyte. The tester comprises a piezoelectric dispenser coupled to each respective reservoir to dispense a mist of reagent onto respective test pads to increase sensitivity and reduce reaction heat and time; wherein piezoelectric dispenser is processor controlled to control dispensing time and volume in each step. The tester also includes a programmable digital camera system for imaging and data collection at specific times, temperature, and applied reagents for analysis by the processor, and a processor to interpret resulting changes in color codes of the test pads throughout the analysis occurring at specific times, temperature, and applied reagent and to identify or characterize the type explosive or class of explosives, clandestine drugs, or household chemicals. |
| 主权项 |
1. A portable tester to detect
one or more analytes from explosives, drugs, or household chemicals, comprising: a plurality of disposable, detachable reagent reservoirs storing reagents to induce a series of color reactions, wherein developed color depends on sequences of applied reagents to respective pads on a support base, reaction times and temperatures on said pad to create one or more color bar codes for a specific analyte; a piezoelectric dispenser coupled to each respective reservoir to dispense a mist of reagent onto respective test pads to increase sensitivity and reduce reaction heat and time; wherein piezoelectric dispenser is processor controlled to control dispensing time and volume in each step, a disposable, chemically inert, and heat resistant swipe for sample collection composed of one or more test pads on a support to be analyzed containing one or more analytes a durable, disposable support base that is chemically inert, heat resistant, and non reflective, for imaging purposes, to retain the test pads and protect the thin-film heaters a plurality of chemically inert and heat resistant test pads to retain the sample to be analyzed with one or more analytes; wherein pads are positioned to receive the pumping and piezoelectric reagent dispensing, wherein each pad is positioned and attached to a nonreactive, heat resistant support base; andwherein each pad is positioned above individually programmable heaters for temperature ramps and hold times and wherein the heaters to generate heating ramps and hold time profiles unique to the respective test pad to evoke a sequence of color reactions of piezoelectric dispensed reagents and analytes and the heater rapidly returning to a start temperature for a new sample analysis,
a fan to circulate and exhaust vapors rising from the test swipe during reaction times; a programmable digital camera system for imaging and data collection at specific times, temperature, and applied reagents for analysis by the processor; and a processor to interpret resulting changing color codes of the test pads throughout the analysis occurring at specific times, temperature, and applied reagent and to identify or characterize the type explosive or class of explosives, clandestine drugs, or household chemicals. |
