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1 results about "Stopped flow" patented technology
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Stopped-flow is a lab technique for studying fast chemical reactions. A stopped-flow instrument is a rapid mixing device used to study the chemical kinetics of fast reactions in solution. The solutions are first forced from syringes into a mixing chamber. After perhaps a few milliseconds the observation cell is filled by a piston linked to a sensing switch that triggers the measuring device and the flow is stopped suddenly. The system is often modeled by conventional kinetic equations.
A harmful gas detecting device
The application discloses a harmful gas detection device and belongs to the technical field of environmental monitoring. The device is provided with an intercepting mechanism, which simultaneously rotates to close the valve cores on both sides of the selected sampling pipeline to intercept the gas in the sampling pipeline. After the gas is intercepted, the gas stops flowing, a relatively stable gas sample space is formed, the stratification problem of components in dynamic flow is avoided, and the sample is more uniform. The method is suitable for scenes where the gas flow speed is fast, the concentration changes fast, stable samples need to be quickly intercepted to capture the instantaneous state, the valve core on the gas outlet side of the selected sampling pipeline is closed, and after it is confirmed that the gas in the sampling pipeline is full and stable, the valve core on the gas inlet side of the selected sampling pipeline is closed. At this time, the sample drawn from the sampling pipeline is suitable for scenes where the gas flow speed is low, the edge effect is significant, the precision detection demand is high, and the overall composition and concentration need to be fully reflected.
Owner:SICHUAN WELLFA TRANSPORTATION TECH CO LTD