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  • Title: [A simple highly sensitive recording microspectrophotometer].
    Author: Govardovskiĭ VI, Zueva LV.
    Journal: Tsitologiia; 1988 Apr; 30(4):499-502. PubMed ID: 3046083.
    Abstract:
    A design of the recording microspectrophotometer is described. The instrument possesses an absolutely flat base line and quantum-noise limited detection threshold. Two principal elements of the design are the "jumping" stage, and the logarithmic amplifier with the phase-sensitive detector which converts the photomultiplier output into the optical density signal. The performance of the instrument is illustrated by the recordings of visual pigment spectra in single photoreceptors.
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