Atomic spectroscopy
US4824241A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1987 |
| Grant date | Apr 25, 1989 |
| Priority date | — |
| Expiry date | Jun 2, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/74
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of atomic spectroscopy is provided involving the steps of inserting a probe into a cuvette, depositing a sample to be atomized onto the probe by means of a sample dispenser, withdrawing the probe from the cuvette, heating the cuvette to a desired temperature sufficient to atomize the sample, and then reinserting the probe into the cuvette. The sample dispenser may be a manually-operated pipette, or the dosing tube of an autosampler. Liquid samples may be dried by heating the cuvette to a temperature lower than the atomization temperature before withdrawing the probe from the cuvette. Both solid and liquid samples may be atomized by this procedure. Such samples also may be ashed where appropriate by heating the cuvette to a second temperature between the first temperature and the atomization temperature before withdrawing the probe from the cuvette. A spectrophotometer using the technique is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.