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1951 Rev. Sci. Instruments 22 866/2 The electronic part of the microspectrophotometer consists of the two photocells, one above the other.

1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) II. 595/1 Such microspectrophotometers, capable of carrying out spectral analyses within the dimensions of a single cell, will play an increasingly powerful role in furthering our knowledge of cell biology.

1990 Times 25 Oct. 21/5 A microspectrophotometer is an extraordinarily sensitive device that can make an accurate cross-check of the precise colour characteristics given to a synthetic fibre from the dyes with which it was processed.

1993 Proc. National Acad. Sci. U.S.A. 90 6009 The spectral characteristics of the cone visual pigments were determined with a dichroic microspectrophotometer.