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

Abstract

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

CLC Number:

O657.3

TrendMD:

YANG Peng-Yuan, WANG Xiao-Ru, YING Hai, QIN Shi-Dong, WAN Ting, HUANG Ben-Li. Studies on Signal-to-Noise Ratio and Analytical DynamicRange in ECHELE/CCD ICP-AES[J]. Chem. J. Chinese Universities, 1995, 16(5): 707.

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

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