AN OPAQUE ADDITIVE TO BLOCK STRAY LIGHT IN TEFLON AF LIGHT-GUIDING FLOWCELLS

摘要

The present invention is directed to the use of a light absorbing wall material (4) to eliminate stray light paths in light-guiding structures, such as those used for HPLC absorbance detection. More specifically, the present invention relates to the use of carbon-doped Teflon(R) AF, or "black Teflon(R) AF," for all or part of the walls of a light-guiding flowcell (2) adapted for use in HPLC absorbance detection.