【摘要】 ＥＣＨＥＬＥ／ＣＣＤ感耦等离子体原子发射光谱中信噪比和分析动态范围的研究杨原，王小如，应海，覃事栋，万婷，黄本立（厦门大学化学系，厦门，３６１００５）关键词ＣＣＤ模式噪音，ＩＣＰ－ＡＥＳ，ＣＣＤ动态范围扩展电荷感应耦合器件（ＣＣＤ）和中阶梯光栅（ＥＣ...更多还原

【Abstract】 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 cur rent 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.更多还原