Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing liquid or solid sample
Patent
1988-03-29
1989-10-31
Hill, Jr., Robert J.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing liquid or solid sample
356 39, 356339, 2504612, 364497, G01N 3316, G01N 2100
Patent
active
048775835
ABSTRACT:
A fluorescent analyzer including a light source which irradiates a sample with direct light, a first wave selector for passing a predetermined wavelength of light emitted from the light source, a sample cell for holding the sample which is irradiated by light passed by the first wave selector, a second wave selector arranged sidewards of the sample outside a direct path of light from the light source passing straight through the sample for passing light of a second predetermined wavelength emitted from the sample upon irradiation by direct light from the light source, a first light detector for producing a first output signal indicative of the amount of light of the second predetermined wavelength passed by the second wave selector, a second light detector for producing a second output signal indicative of the amount of direct light of the first predetermined wavelength passing straight through the sample, a correction circuit for performing a predetermined correction on the amplitude of the first output signal based on the amplitude of the second output signal to produce a corrected measurement signal, and an indicator for indicating the corrected measurement signal.
REFERENCES:
patent: 4325706 (1982-04-01), Gershman et al.
patent: 4435507 (1984-03-01), Stenkvist
patent: 4455376 (1984-06-01), Maines
patent: 4492752 (1985-01-01), Hoffman et al.
patent: 4581334 (1986-04-01), Kirchanski et al.
patent: 4662742 (1987-05-01), Chupp
Goto Ikuo
Kashiwada Minoru
Miwa Harufumi
Ajinomoto Company, Inc.
Hill Jr. Robert J.
Wallen T. J.
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