The system is equipped with a linear
charge-coupled device (CCD) array detector; 200 pixels of this array
are used analytically, which means that the equipment works with
200 independent detectors that are illuminated and read out
simultaneously. Pixels that are not needed to measure atomic
absorption can be used to correct for any fluctuation of the measured
radiant flux that is continuous over the spectral range covered by the
detector, such as lamp flicker noise or continuous background ab-
sorption. The visibility of the spectral environment approximately ±
0.25 nm at both sides of the analytical line, which is another result of
this feature, greatly facilitatesmethod development and optimization.
It also shows spectral interferences, making it much easier to avoid
this kind of interference, and if it cannot be avoided, HR-CS
AAS offers
the possibility to correct for spectral interference using a least-squares
algorithm [19].这是原理介绍,看的不太明白