Atomic absorption spectrophotometer
Patent
·
OSTI ID:5410251
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.
- Assignee:
- US Philips Corp.
- Patent Number(s):
- US 4508451
- OSTI ID:
- 5410251
- Country of Publication:
- United States
- Language:
- English
Similar Records
Spectrophotometer
AN ATOMIC ABSORPTION SPECTROPHOTOMETER
Compensation for the temperature drift of the wavelength adjustment in an acoustooptic spectrophotometer
Patent
·
Tue Aug 07 00:00:00 EDT 1984
·
OSTI ID:6050299
AN ATOMIC ABSORPTION SPECTROPHOTOMETER
Journal Article
·
Sun Sep 01 00:00:00 EDT 1963
· Applied Optics (U.S.)
·
OSTI ID:4055690
Compensation for the temperature drift of the wavelength adjustment in an acoustooptic spectrophotometer
Journal Article
·
Sat Mar 30 23:00:00 EST 2002
· Quantum Electronics (Woodbury, N.Y.)
·
OSTI ID:21454769