Metastable energy transfer for analytical luminescence

Details Metastable energy transfer for analytical luminescence Metastable energy transfer for analytical luminescence

1979-10-25

1982-01-05

Marcus, Michael S.

Chemistry: physical processes

Physical processes

Crystallization

31511101, 31511111, 356316, 422 98, G01N 2160

Patent

active

043091873

ABSTRACT:
A method and apparatus for analysis of atomic species which comprises directly forming metastable energy level nitrogen by processing a stream of nitrogen containing gas through a dielectric field wherein essentially no excited species above the 6th vibrational level of the B.sup.3 .pi..sub.g energy state nor nitrogen atoms nor ions are formed, admixing said excited nitrogen with a gas stream suspected of containing said atomic species to be analyzed whereby the energy level of said species is raised sufficiently to enable a fluorescent emission as the energy level of said excited species decays to its lower energy state, detecting and analyzing the spectrum of said flluroescent radiation to determine the identity and concentration of said element.

REFERENCES:
patent: 2068741 (1937-01-01), Geffcken et al.
patent: 4148612 (1979-04-01), Taylor et al.
patent: 4150951 (1979-04-01), Capelle et al.
Wulf et al., Physical Review, vol. 55, pp. 687-691, (1939).
Noxon, Journal of Chemical Physcis, v. 36, No. 4, pp. 926-940 (1962).

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