Southwest Retort, Volume 13, Number 6, February 1961 Page: 19
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THE FISHER DUO-SPECTRANAL*
Makes Spectroanalysis Easy!
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inexperienced operators can quickly make
qualitative and semi-quantitative anal-
yses for trace metals in soils, water or
tissues . . find. sources of stream pollu-
tion . .. .identify ores and alloys . .
check foods for metallic pesticide resi-
dues. It is an ideal instrument for
teaching the principles and techniques
of spectroscopic analysis.
A unique patented source gives the an-
alyst the equivalent of an oxy-hydrogen
flame spectrum, without the usual un-
wieldy equipment and tremendous heat.
The Duo-Spectranal's automatically
aligned dual source allows him to com-
pare the spectrum of each sample with
spectra of known materials, and to match
the wave lengths and intensities of known
and unknown spectral lines. Wave
lengths are shown directly in Angstroms,
on an illuminated scale.
The Duo-Spectranal forms its spectra
with an aluminized replica diffraction
grating ruled with more than 31,000
lines to the inch-a feature generally re-
stricted to expensive instruments. Under
the 5-power eyepiece, lines only 3A apart
are easily resolved.
Modern design makes the Duo-Spec-
tranal easy to use. The inclined eyepiece
allows the operator to work while com-
fortably seated. Automatically aligned
electrodes and a sample adjustment pipet
eliminate possible sources of error. The
instrument uses only a square foot of
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*Further patents pending B-l 19b
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American Chemical Society. Dallas/Fort Worth Section. Southwest Retort, Volume 13, Number 6, February 1961, periodical, February 1961; [Dallas, Texas]. (digital.library.unt.edu/ark:/67531/metadc111077/m1/19/: accessed February 27, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .