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SPECTROSCOPIC SYSTEMS FOR THE ANALYSIS OF SMALL AND VERY SMALL QUANTITIES OF SUBSTANCES
SPECTROSCOPIC SYSTEMS FOR THE ANALYSIS OF SMALL AND VERY SMALL QUANTITIES OF SUBSTANCES
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机译:用于分析物质的小数量和非常小数量的光谱系统
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摘要
A spectroscopic system for the analysis of small and very small quantities of substances makes use for the purposes of energy transfer of cone-shaped aperture changers (14,15) which are arranged in the object zone (8) between the light source (L) and the sample (9) and, during absorption measurements, also between the sample (9) and the inlet slot (3) of a spectrometer (1). If the form used is a double cone, the aperture changers (14, 15) facilitate an oblique coupling in a capillary tube accepting the sample (9) which acts as a stepwaveguide for the coupled radiation.
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