Instrumentation for fluorescence and phosphorescence (Concluded)

Abstract

Edited by GALEN W. EWING, Seton Hall University, So. Orange, N. J. 07079 T/tese articles are intended to serve the readers of this Journal by calling attention to new developments in the theory, design, or availability of chemical laboratory instrumentation, or by presenting useful insights and explanations of topics that are of practical importance to those who use, or teach the use of, modern instrumentation and instrumental techniques. The editor invites correspondence from prospective contributors.

Instrumentation for fluorescence and phosphorescence

“…Typical excitation and fluorescence spectra, measured with a Farrand spectrofluorophotometer, are shown in Figure 5. Because instruments of this type generally measure the characteristics of the sample without a continuous comparison to a reference standard, the instrument has the same majoT drawbacks which appear in attempting to record absorption spectra with a single beam instrument (10). Thus, if the light source is unstable and varies in intensity, it can cause the appearance of false peaks in the spectrum.…”