Atomic absorption spectrophotometer

Details Atomic absorption spectrophotometer Atomic absorption spectrophotometer

1982-12-16

1985-04-02

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

With sample excitation

356325, G01J 342, G01N 2172

Patent

active

045084513

ABSTRACT:
In atomic absorption spectrophotometer, a reference path may be provided for radiation which excludes the flame. This radiation provides a signal from a detector which varies only with the instrumental drift produced by variations in the radiation source brightness and by variations in detector gain. The signal can be used to compensate for drift in other signals received through a sample path including the flame. In the present invention, radiation passes through the sample path continuously during measurement, and only through the reference path between sample measurements. Movable mirrors shift the radiation between the paths upon externally applied commands. Conveniently, the reference path measurement is made while the flame is stabilized during the change between samples. The reference path measurements are stored and used to correct for drift.

REFERENCES:
patent: 4238830 (1980-12-01), Unvala
Mills, Laboratory Equipment Digest, vol. 14, No. 10, Oct. 1976, pp. 97,99,101,103,105.

Affiliated with

Also associated with

Rating

Atomic absorption spectrophotometer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Atomic absorption spectrophotometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Atomic absorption spectrophotometer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1088970