Method of and apparatus for quantitative analysis

Details Method of and apparatus for quantitative analysis Method of and apparatus for quantitative analysis

1975-04-23

1976-08-24

Queisser, Richard C.

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Content or effect of a constituent of a liquid mixture

73 1G, 73 28, G01N 2750

Patent

active

039759474

ABSTRACT:
Method of measuring constituents in a fluid which may be gaseous or liquid, which dispenses with calibration procedures which are performed at the expense of the measuring time. The measuring apparatus is continuously supplied with a known amount of constituents from a calibration source, which calibration amount is mixed with the fluid to be measured. Subsequently, a part of the constituents of the mixture is led to a detector, and the resulting measuring signal is compared to a reference signal for adjusting a control device to ensure that the amount of constituents which reaches the detector is the correct value. The setting of the control device is an output signal useful in unattended measuring stations for water and air pollution.

REFERENCES:
patent: 3206449 (1965-09-01), Van Luik, Jr.
patent: 3242715 (1966-03-01), Hubner
patent: 3300282 (1967-01-01), Risk et al.
patent: 3611790 (1971-10-01), Brouwer et al.
patent: 3674435 (1972-07-01), Van Luik, Jr. et al.
patent: 3776023 (1973-12-01), Budd et al.
patent: 3888112 (1975-06-01), De Leeuw et al.

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