Device for pulse dosage of liquid microsamples into the flame of

Details Device for pulse dosage of liquid microsamples into the flame of Device for pulse dosage of liquid microsamples into the flame of

1981-11-18

1985-01-22

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

With sample excitation

422 82, G01N 2172

Patent

active

044948719

ABSTRACT:
A dosing device for emitting liquid samples to an automatic absorption spectrophotometer having a liquid atomizer for the samples, utilizes at least one three-way distributor, one of the ports of which communicates with the atomizer, another port of which communicates with the spectrophotometer, and a third part of which communicates with a vessel containing the liquid sample. An electromagnetic valve is provided for the port communicating with the atmosphere. In the preferred embodiment, two such distributors are provided in series and the second distributor is connected to a source of pure solvent and is interposed between the first distributor and the spectrophotometer.

REFERENCES:
patent: 3625614 (1971-12-01), Herrmann et al.
patent: 4212845 (1980-07-01), Stelling et al.
Z. Anal. Chem. 264, pp. 105-109 (1973); Springer Verlag.
Spectrachimica Acta, vol. 30B, pp. 169-177, Pergamon Press.
Atomic Absorption Newsletter, pp. 109-113: Automated Injection Method for Dispensing Small Volume Samples in Flame Atomic Absorption, Y. H. Berndt and E. Jackwerth.
Atomic Absorption Newsletter, 1978, pp. 113-114: A Simple Teflon Sampling Manifold for Use with Small Injections, by A. Eaton and E. Schiemer.

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