4 results about "Mercury vapors" patented technology

The present application relates to mercury pollution treatment technical field, especially laboratory mercury pollution automatic processing method, the method includes the following steps: step S1: the mercury waste gas is from the air inlet pipe into the pretreatment pool, so that the mercury waste gas is contacted with the absorption liquid to absorb the mercury waste gas; Step S2: when the absorption liquid changes color, the first color sensor sends a signal to the control host, the control host controls the multiple electric telescopic rod to drive the shielding block to move, so that the air outlet pipe is opened, the control host controls the first valve to open, so that the absorption liquid is contacted with the filter material through the liquid outlet pipe into the filter tank to reduce mercury ions to metallic mercury; The present application can accurately and efficiently treat mercury vapor, mercury waste liquid and find mercury leakage in time, so as to guarantee the personal safety of the experimenter.

The application discloses an ultraviolet lamp tube timer, which comprises a shell, the bottom of the shell is provided with a double-ring connecting block, the two sides of the double-ring connecting block are both provided with an annular groove, a rectangular hole is arranged between the inner walls of the two annular grooves, a cylindrical hole is arranged on the inner wall top of the rectangular hole, and the mercury vapor sensor, the controller, the micro fan, the air inlet pipe, the air outlet pipe, the double-ring connecting block, the annular groove, the air inlet hole, the rectangular hole, the cylindrical hole and the concave block are matched to suck the mercury vapor overflowing from the connection between the two ends of the tube body of the ultraviolet lamp tube body and the two electrodes, transport the mercury vapor to the concave block to react with sulfur powder, so that the mercury vapor can be effectively prevented from being scattered in the environment and inhaled by people to affect their health, the overflowing mercury vapor can be collected and removed in time, and the use safety of the ultraviolet lamp is effectively improved.

Apparatus and methods are provided for quantitative detection of mercury vapor in gas samples using a film of nanoparticles. The localized surface plasmon resonance (LSPR) of an amalgam nanoparticle is sensitive to adsorbed mercury mass. The equilibrium mass of mercury on a gold nanoparticle is a function of the surrounding vapor concentration and the temperature of the gold. A device that introduces a temperature-controlled gold nanoparticle film to a controlled flow of sample gas responds predictably to a given mercury vapor concentration when optically probed in situ. Controlling the temperature of the film allows for control of adsorption and desorption rates. Equilibrium plasmonic mercury detection, described herein, removes the cycling necessary for many gold-based mercury analyses. Methods are given for the operation and analysis of the temperature-stabilized gold nanoparticle mercury sensor. The disclosed mercury-detection apparatus and methods find use in a variety of applications, including, for example, mercury detecting applications.

The invention discloses a portable mercury content detection device, and relates to the field of mercury content detection. The portable mercury content detection device comprises a detector and a pretreatment unit arranged on one side of the detector, the detector detects the mercury content by measuring the light intensity weakening degree through a cold atomic absorption spectrometry, the pretreatment unit comprises a drying assembly and a flow rate adjusting assembly, and the drying assembly can adjust the content of a drying agent according to the humidity of mercury gas; the flow rate adjusting assembly adjusts the mercury steam flow rate according to the drying agent content. According to the portable mercury content detection device, by arranging the drying assembly, the number of drying agents can be adjusted according to the humidity of mercury steam, so that water vapor in the mercury steam can be effectively removed, and the influence of humidity on a detection result is avoided. Meanwhile, the flow speed adjusting assembly can correspondingly adjust the flow speed of mercury steam according to the number of the drying agents, dilution of the mercury steam is reduced, it is guaranteed that the sensitivity of the detector to the mercury steam is stable, and the detection accuracy is further improved.