Sheet metal is directly analyzed for boron by means of spark excitation. Source inductance of 200 to 300 μh, together with rotation of the specimen during excitation, provides detectability an order of magnitude better than conventional spark excitation of steel. Sheet material of 0 050 in thickness and containing a nominal 0.004% boron is analyzed with a coefficient of variation of 3.2%.
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References
1.
CorlissC. H. and ScribnerB. F., J. RESEARCH NAT. BUR. STANDARDS36, 351 (1946)
2.
RungeE. F.BrooksL. S., and BryanF. R., ANAL. CHEM.27, 1543 (1955)
3.
SteinbergR. H., APPLIED SPECTROSCOPY7, 176 (1953)
4.
PatersonJ. E. and GrimesW. F., ANAL CHEM.30, 1900 (1958)
5.
HarrisonG. R., M.I.T. Wavelength Tables of 100,-000 Spectrum Lines, John Wiley and Sons, Inc., New York, 1939.
6.
EckhardS. and KochW., ARCH. EISENHÜTTENW.11, 731 (1957)
