... reliable electronic design5.1 Adopting large-scale programmable logic array and Inter I2C bus technology5.2 ... SystemMonochomatorSingle beam, Czerny-Turner design grating monochromatorGrating1800 l/mmFocal length277mmBlazed Wavelength250nmSpectral Bandwidth0.1nm, 0.2nm, ... timesSampling systemAccurate dual pump system, with 100μl and 1ml injiectorsCharacteristic Concentration and Detection LimitAir- ...