高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (5): 707.

• 研究简报 • 上一篇    下一篇

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   

  1. 厦门大学化学系, 厦门, 361005
  • 收稿日期:1994-06-15 修回日期:1994-11-20 出版日期:1995-05-24 发布日期:1995-05-24
  • 通讯作者: 杨芃原,男,45岁,博士,教授.
  • 作者简介:杨芃原,男,45岁,博士,教授.
  • 基金资助:

    国家自然科学基金

Studies on Signal-to-Noise Ratio and Analytical DynamicRange in ECHELE/CCD ICP-AES

YANG Peng-Yuan, WANG Xiao-Ru, YING Hai, QIN Shi-Dong, WAN Ting, HUANG Ben-Li   

  1. Department of Chemistry, Xiamen University, Xiamen, 361005
  • Received:1994-06-15 Revised:1994-11-20 Online:1995-05-24 Published:1995-05-24

关键词: CCD模式噪音, ICP-AES, CCD动态范围扩展

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.

Key words: CCD pattern noise, ICP-AES, CCD dynamic range extension

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