A gas chromatographic procedure was developed for the determination
of nanogram quantities of hydrocyanic acid using a
flame ionization detector. Excellent chromatograms were obtained
on a porous polyaromatic polymer column (Porapak Q) at 60°C. The
procedure was employed for the analysis of HCN in aqueous cyanide
solutions. Solutions as low...
An all-glass gas chromatograph was developed for the analysis
of corrosive metal halides. Included in the apparatus is a new liquid
sampling system designed for fast repetitive sampling of corrosive
liquids in an inert atmosphere. A flame photometer detector was developed
to permit the detection of corrosive solutes in the...
AT-cut piezoelectric quartz crystals coated with low vapor
pressure materials are evaluated as digital transducers in completely
digital detection systems for monitoring gas streams. Mathematical
relations describing the detectors are developed and tested. Specific
application is made to monitoring gaseous sulfur compounds commonly
found in stack effluents of pulp mills....
Samarium
(III)
and
promethium
(III)
were
studied
by
chronopotentiometry
in
a
molten
LiCl-KC1
eutectic.
Tungsten
electrodes
were
used
to
avoid
alloying
effects
encountered
with
platinum
electrodes.
Adsorption
phenomena
were
observed
which
prevented
the
study
of
any
kinetic
effects.
The
quarter
wave
potentials
were
measured
as:
Sm(III)
=
0.95
±
0.05...
An automatic digital titrator for use in potentiometric titrations
is described. The automatic titrator described provides
a permanent digital and analog record of all titrations. The modular
units which combine to form the automatic titrator are described
individually. Accuracy achieved by the titrator on successive
acid-base titrations of ammonia in...
A procedure is described for the optimization of a previously
described continuous analysis adaptation of the Pearl-Benson or
nitroso method for estimation of spent sulfite liquor (SSL) or ligno-sulfonates.
The optimized procedure has a response time of 6.5 minutes. In order to monitor samples whose SSL concentration is
between 0...