Automatic liquid flow sampling apparatus

Details Automatic liquid flow sampling apparatus Automatic liquid flow sampling apparatus

1978-02-02

1980-05-27

Goldberg, Gerald

Measuring and testing

Measuring vessel

73 1R, G01N 114

Patent

active

042044308

ABSTRACT:
An automatic sampling apparatus for withdrawing samples from a continuously flowing liquid for analysis by a flameless atomic absorption spectrometer includes a sample vessel which, at predetermined times, receives pumped samples of the liquid to be tested, a neutral dilutant liquid, or a calibrated liquid for recalibrating the spectrometer system. A probe having a pipette-like tip is mechanically actuated to dip into the sample vessel and an intake and dispensing pump connected to the probe draws a small sample into the probe tip whereupon the probe mechanism lifts and rotates the probe and inserts the tip into the graphite atomizer tube of the atomic absorption spectrometer. The probe mechanism then returns the probe where it is first flushed with a flushing liquid pumped through the probe and is then returned to the sample vessel to draw the next test sample.

REFERENCES:
patent: 3666420 (1972-05-01), Paatzsch
patent: 4042338 (1977-08-01), Huber
patent: 4068529 (1978-01-01), Konig
patent: 4080833 (1978-03-01), Huber
patent: 4111051 (1978-09-01), Tamm et al.

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