Profile: Starna Cells, Inc. offers quality spectrophotometer, fluorometer, colorimeter laser cells and uv/vis reference materials. Our spectrophotometer cells are used for holding the samples to be measured for absorbance or transmission in all common spectrophotometers. We offer rectangular cells, cylindrical cells, fluorometer flow cells, submicro cells and flow cells. Our fluorometer cells have at least three windows clear, and are designed for use in a fluorometer which passes an excitation beam through the cell & then reads the fluoresence emission at a 90 degree angle.