Microingredient containing tracer

Details Microingredient containing tracer Microingredient containing tracer

1985-04-16

1987-03-31

Terapane, John F.

Compositions

Nonreactive analytical, testing, or indicating compositions

426 98, 426 97, 426 74, 436 56, 252965, G01N 3302, G01N 3344, G01N 3700

Patent

active

046541659

ABSTRACT:
A tracer particle for determining the concentration of a microingredient in a bulk material is disclosed. The tracer particle comprises a finely divided ferromagnetic particulate material approximately 90% of which is approximately 325 mesh or smaller, a microingredient and a binder wherein the microingredient and ferromagnetic material are entrapped in the binder and wherein the tracer particle is approximately 35 to 80 mesh in size.

REFERENCES:
patent: 2868644 (1959-01-01), Eisenberg
patent: 3469990 (1969-09-01), Eisenberg
patent: 3772200 (1973-11-01), Livesay
patent: 3861886 (1975-01-01), Meloy
patent: 4152271 (1979-05-01), Eisenberg
patent: 4188408 (1980-02-01), Eisenberg
patent: 4363678 (1982-12-01), Nishimura et al.

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