Absorption spectrum a plot of the absorbance by a substance of radiation at different wavelengths, usually of ultraviolet, visible, of infrared radiation.
吸收光谱：记录物质对不同波长的光，通常是紫外光、可见光或红外光吸收情况的图。
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In this paper, we got the regularity of cavity ring-down spectroscopy when the line width of laser pulse is far larger than the absorption line width of measured substance.
The results appeared that in the different Remain Times (RT), the impactions of each operate-factor on the absorptionof volatile substance in the SPME fiber varied.