The design and construction of a chemiluminescence
photometer is described. The design is based on a discrete
sample system which has a number of advantages over
the previously described flow cell system and centrifugal
analyzer. The advantages include simple and inexpensive
equipment, small sample size, versatile electronic readout
system, and...
The application of lucigenin chemiluminescence for the determination
of trace concentrations of Co(II) is described. This method
is based on the enhancing effect that Co(II) has on the reaction of
lucigenin and hydrogen peroxide in a basic solution. The chemiluminescence
signal from a Co(II) enhanced lucigenin reaction, which is in...
A critical study of the cold vapor atomic absorption and fluorescence instrumentation for the analysis of mercury is described. Some of the important modifications involve the reduction vessel, absorption cell, fluorescence cell, and radiation source. The new modified systems have much greater calibration sensitivities and lower detection limits than those...
A multielement spectrometer has been developed for the simultaneous determination of four elements by atomic absorption (AA) or atomic fluorescence (AF). The spectrometer is based on a multiple exit slit monochromator and uses a mirrored funnel to direct light from the various exit slits to a single photomultiplier. There are...
The design, construction and operation of a fluorometric reaction
rate instrument is described. The instrument is designed for simple
operation with maximum versatility. Advantages and modes of
operation of the system are discussed in detail. The instrument is
used for the kinetics-based determination of trace levels of Ag and Al....
Improvements in instrumentation for fluorometric kinetic
measurements and the application of a new intensified diode array (IDA)
rapid scanning system to low level transient fluorescence measurements
are reported. This instrumentation is applied to a new fluorometric
kinetic method for thiamine (TM).
Modifications to the existing fluorometric reation rate instrument
include...