STUDIES ON SIGNAL-TO-NOISE RATIO AND ANALYTICAL DYNAMIC-RANGE IN ECHELE/CCD ICP-AES
- 化学化工－已发表论文 
This paper reports the experimental study on the ECHELE/CCD ICPAES. The results show that the S/N ratio enhancement is particularly important in the signal process due to the low sensitivity of CCD in UV range. The effect of CCD noise pattern of dark current and of sensitivity, and their correction methods are described, The analytical dynamic range of CCD has been expanded to the six orders of magnitude, by means of multiple-time integration or multiple-line integration.