Flow Cells

UV/VUS/NIR absorbance spectroscopy is governed by Beer's Law, where the absorbance signal is proportional to chemical concentration, light path length and the compound's specific molar absorbance coefficient.  Optical pathlengths of typcial cuvettes and flow cells are between 0.1 cm and 10cm.  Longer pathlengths are difficult to achieve due to mechanical constraints.  Liquid Waveguide Capillary Cells (LWCC's) fill this gap. 

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