METHOD OF DETERMINATION OF GAS-FORMING IMPURITIES IN SOLID HIGHLY PURE SUBSTANCES Russian patent published in 1997 - IPC

Abstract RU 2089884 C1

FIELD: analytical chemistry. SUBSTANCE: method involves the surface cleansing, evaporation and ionization of an analyzed substance by impulse laser radiation, mass-spectral separation and detection of base and impurity. Surface cleansing of analyzed substance is carried out by effect of impulse laser radiation. After mass-spectral separation the additional separation of the base and impurities is carried out by effect of electric field followed by mass-spectral separation of ions passed through electric field. EFFECT: improved method of assay. 4 tbl, 3 dwg

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RU 2 089 884 C1

Authors

Kovalev I.D.

Shmonin P.A.

Dates

1997-09-10—Published

1995-01-31—Filed