The MAFIAS project (Micro Ammonia Flow Injection Analysis System) aims at the development of a monolithic micromachined flow injection analysis system for the detection of ammonia. From the applied chemistry, design restrictions for the micromechanical ammonia detection system are deduced. These restrictions involve the temperature control of the system at 37° C. Also the time available for the mixing of the compounds used in Berthelot’s method is restricted to less than 20 seconds. This last restriction calls for a mixer since the compounds itself would take at least three times as long to mix. A new type of mixer based upon diffusion is proposed. Theory for deriving the exact geometry for the mixer is deduced. With this mixer, the mixing time can be reduced to 2 seconds.
|Conference||Dutch Sensor Conference 1998|
|Period||2/03/98 → 3/03/98|