Chemistry: analytical and immunological testing – Metal or metal containing
Patent
1985-12-20
1988-03-15
Richman, Barry S.
Chemistry: analytical and immunological testing
Metal or metal containing
436171, 436173, 436182, 356437, G01N 2162, G01N 3320
Patent
active
047313340
ABSTRACT:
Gaseous selenium is detected and quantitatively determined at a temperature lower than the temperatures employed in the atomic absorption spectroscopic analysis method of the prior art. This is achieved by directing a spectrum line with a wavelength of 335 nm or by two or more spectrum lines having wavelengths of 324 nm, 326 nm, 328 nm, 330 nm, 332.5 nm, 335 nm, 337.5 nm, 340 nm, 342 nm, 344.5 nm, 347 nm, 350 nm, 352.5 nm, 355 nm, 357.3 nm and 360 nm upon gaseous selenium at a temperature of lower than the atomizing temperature of selenium, measuring the absorption of the incident spectrum line by the gaseous selenium and detecting and quantitatively determining the selenium from the peak height of this intensity.
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Johnston Jill
Richman Barry S.
Sumitomo Electric Industries Ltd.
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