Chemistry: analytical and immunological testing – Process or composition for determination of physical state...
Patent
1981-12-15
1983-12-20
Bernstein, Hiram H.
Chemistry: analytical and immunological testing
Process or composition for determination of physical state...
436110, 356243, G01J 302
Patent
active
044218575
ABSTRACT:
A method for checking noise of a spectrometer or spectrophotometer. The method is of the type comprising measuring absorbance (A) or percent transmittance (%T) of a solution over a period of time. The method is characterized in that the solution comprises from about 0.040 to about 0.090 M nitrite, the nitrite being present as a nitrite ionized constituent.
REFERENCES:
patent: 3512895 (1970-05-01), Grum et al.
JR 5, 1981, vol. 26, pp. 200-202.
Rider et al., Analytical Chemistry, vol. 18, No. 2, 1946.
Anderson John C.
Sun Lilla S.
Beckman Instruments Inc.
Bernstein Hiram H.
Frieman R. S.
Steinmeyer R. J.
Vanderburgh J. E.
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