Equipment and method for collecting trace substances in the air
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United States of America Patent
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Issued Date -
Sep 21, 2006
app pub date -
Apr 26, 2004
filing date -
May 1, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The device for sampling the air-brone trace-particulates is a device to collect and gather pathogens and trace chemical substances especially micro pathogens such as virus particles in the air. The device is composed of the air-collecting cavity (a) which is filled with viscous molecular materials, the valve (b), the eluent container (d) and the air pump (J1 or J3). The air-collecting cavity has an air intake and an air outlet. The air intake is linked to the eluent container through a peristaltic pump and to the atmosphere (c) through the valve. The outlet is connected to the air pump and to the gathering container (f) through the valve. The collecting method is as follows: after the pump (J1), the two valves (b4) and (b1) are opened, the air sample is then collected and gathered in the air-collecting cavity. The volume of collected air is measured with the flow meter (i). When the volume meets the specified standard, the pump (J1), the two valves (b4) and (b1) are all closed. Then the accessorial washing device named ultrasonator (h) is turned on, the pump (J2), the three valves (b3), (b5) and (b6) are all turned on. The pump (J2) forces the eluent pass the gathering area and elutes the component in the air in the gathering area.
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