Accession Number : ADA194221

Title :   Molecular Fluorescence Measurements with a Charge-Coupled Device Detector.

Descriptive Note : Technical rept.,

Corporate Author : ARIZONA UNIV TUCSON DEPT OF CHEMISTRY

Personal Author(s) : Epperson, Patrick M ; Jalkian, Rafi D ; Denton, M B

PDF Url : ADA194221

Report Date : 04 Feb 1988

Pagination or Media Count : 23

Abstract : A novel fluorescence spectrometer is described using a two-dimensional charge-coupled device as the detector and a mercury pen lamp as the excitation source. The fluorescence spectra and intensity of anthracene in ethanol standards at concentrations ranging from .0001 to 10 to the -11th power M are shown. The limit of detection measured is 10 to the -12th power M, or 227 parts-per-quadrillion. The linear dynamic range obtained with this instrument is 6 orders of magnitude with excellent linearity using 10 second signal integration time. Keywords: Charge coupled device; Molecular fluorescence; Multichannel detectors; Charge transfer device; Anthracene; Rayleigh spectra; Raman spectra.

Descriptors :   *CHARGE COUPLED DEVICES, *FLUORESCENCE, ANTHRACENES, CHARGE TRANSFER, DETECTORS, DYNAMIC RANGE, ETHANOLS, EXCITATION, INTENSITY, LINEARITY, MEASUREMENT, MERCURY LAMPS, MOLECULES, MULTICHANNEL, PENETRATION AIDS, RAMAN SPECTRA, SOURCES, SPECTRA, SPECTROMETERS, STANDARDS, TWO DIMENSIONAL

Subject Categories : Physical Chemistry
      Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE