Measuring cell for spectrometry and method for measuring the absorption or emission of a sample in the tube interior of this measuring cell

摘要

The invention relates to a measuring cell for spectrometry, in particular IR, UV/VIS absorption spectrometry or fluorescence spectrometry or Raman spectrometry, having an essentially cylindrical tube (1) made from a material transparent to the measuring radiation and having an index of refraction which is greater than that of the medium (3, 14) adjoining the tube inner wall. The tube inner wall (7) and the tube outer wall (6, 13) extend parallel to one another, and a sample (3, 14) is arranged in the tube interior (3) in contact with the tube inner wall (7). The invention also relates to a method for measuring the absorption or emission of a sample arranged in the tube interior of the measuring cell. <IMAGE>