Concentration detection device of brodifacoum in occupational-exposure air and detection method

• Main Authors: WANG ZE, CHENG HAO, LI QUNHUI, ZHU BAI
• Format: Patent
• Language: Chinese; English
• Published: 07.08.2018
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a concentration detection device of brodifacoum in occupational-exposure air and a detection method. The concentration detection device comprises a collecting bottle containingadsorbing liquid, and a collecting pipe and a gas discharging pipe which are arranged in the collecting bottle, wherein one end of the collecting pipe leads to be below the liquid level of the collecting bottle, and the other end of the collecting pipe is connected with a gas pumping device and a flow meter; a gas-liquid mixing cavity is arranged at the middle part of the collecting pipe; at least one spraying nozzle leads into the gas-liquid mixing cavity and can spray the adsorbing liquid into the gas-liquid mixing cavity; one end of the gas discharging pipe leads into the collecting bottleand is positioned above the liquid level of the collecting bottle, and the other end of the gas discharging pipe extends out of the collecting bottle. The concentration detection device of the brodifacoum in the occupational-