Short Optical Path Measurement

This is used to measure samples, without diluting them, with an absorbance too high to be measured using a standard square cell with an optical path length of 10 mm.

Absorption Spectrum of Toluene Measured Using a 1 and 10 mm Optical Path Length
Spacer for Short-Path Cell

Three types of spacers are available to provide path lengths of 1, 2 and 5 mm. As shown in the figure, the spacer is inserted between the cell and the inner wall of the standard square cell holder.

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