Spectrochemical Analysis of Metals with the Multisource Unit*

Spectrochemical Determination of Copper

“…The experiments of Easier and Kemp (5) on aluminum bronze were repeated on a series of copper-zinc alloys, whose composition is shown in Table II.…”

“…A possible cause of the effect is suggested. HABLER and Kemp (5) have reported that copper in aluminum bronze can be determined in the range 75 to 90% from the ratio of the intensities of two copper lines. This method of analysis has also been used by Calker (1) for the determination of bismuth and magnesium as minor constituents in variousmatrixes.…”

X-Ray Absorption and Emission

“…X-ray emission spectrography continues useful in the determination of major constituents in alloys, as is clear from the papers presented at the Pittsburgh Conferences (6-8) and from other references cited in this section. The number of recently published papers dealing exclusively with this application (19,61,62,101,102) is not large, perhaps because the method is proving to be relatively trouble-free. Mihalisin (102) reports the saving of time usually realized when x-ray emission spectrog-raph}-is used in combination with established wet methods in the analysis of high-temperature alloys and cites data showing the x-ray results to be sufficiently reliable for quality control.…”

Analysis of Silica-Alumina Cracking Catalysts

“…The ARL-Dietert Multisource unit (1,3) was used to excite the spectra. The input voltage to this unit was held at 230 ± 4 volts by a General Electric AIRS type constant-voltage transformer.…”