| 摘要 |
The invention provides a mercury automatic detection system and a preprocessing device thereof. The system and the device can automatically detect mercury on a site where samples required to detect exist, and accurate detection in the device can easily perform in clean and continuous manner, and reagent consumption can be easily controlled. In the mercury automatic detection system and the preprocessing device thereof, the downstream ends of the pipings (L1)-(L4) in which potassium permanganate solution and other decomposition reagent circulate and the piping (L5) in which a hydroxylamine hydrochloride solution circulates are respectively connected with the middle part of a piping (L10), so as to inject the reagent into a metering reaction tank (1) from the downstream end of the piping (L10). The piping (L5) in which the hydroxylamine hydrochloride solution circulates is connected with the piping (L10) on the upstream side of the piping (L3) in which the potassium permanganate solution circulates. |
