Chemistry: analytical and immunological testing – Nuclear magnetic resonance – electron spin resonance or other...
Patent
1985-06-24
1987-06-16
Marcus, Michael S.
Chemistry: analytical and immunological testing
Nuclear magnetic resonance, electron spin resonance or other...
422 68, 436181, 261DIG48, 261 81, G01N 2173
Patent
active
046736565
ABSTRACT:
Apparatus and method are provided for improving the sample aerosol yield in plasma-emission, sequential spectroscopic analysis. A reservoir is employed and an aerosol is produced therein from a limited amount of sample liquid with the assistance of an electro-mechanical oscillator system. Only that amount of aerosol which is supplied to an interconnected plasma by a carrier gas stream is used for a single analysis. Unused aerosol in the reservoir recondenses and mixed with residual sample liquid. Nearly 100% of a sample liquid may be used in this way.
REFERENCES:
patent: 4087495 (1978-05-01), Umehara
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patent: 4524746 (1985-06-01), Hansen
patent: 4582654 (1986-04-01), Karnicky et al.
Perkin-Elmer Information Sheft. 28, (1981) "III. Introduction to AES with an Inductively Coupled Plasma (ICP)".
"A Corrosion Resistant Sample Introduction System for ICP Emission Spectroscopy" presented in part at the Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy, Atlantic City, New Jersey, Mar. 8-12, 1982, Paper #157.
Drews, Wolf-Dietrichy, "Liquid Atomization By Means of Ultrasonics", reprint from Elektronik vol. 28, No. 10, 1979.
Marcus Michael S.
Siemens Aktiengesellschaft
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