| 摘要 |
The present invention is directed to devices and methods for determining the presence of analyte in a fluid sample. The devices utilize a sample collection well, an expression plate for expressing sample into the sample collection well, a plunger that drives a seal, and a test compartment containing test elements. The devices also contain a reservoir for preserving an aliquot of sample for later confirmation testing. When the plunger is lowered into the sample collection well, an aliquot of sample is sealed in the reservoir. In one embodiment the plunger is lowered as a cap is applied to the device. The devices are useful for detecting the presence of analyte in a wide variety of fluid samples, such as saliva. The invention also provides methods of using the devices, and kits containing the devices.
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