Sampling technique using open holder
Abstract
Abstract A SAMPLING TECHNIQUE FOR ATOMIC ABORPTION SPECTROSCOPY UTILIZES A SMALL (E.G., ONE-HALF OF A MILLILITER) OF A SAMPLE SOLUTION. THIS SAMPLE IS PLACED IN A SMALL BOAT-SHAPED HOLDER, DRIED (E.G., BY BEING PLACED NEAR BUT NOT IN THE FLAME OF THE SPECTROMETER), AND THEN PLACED INTO A CONVENTIONAL FLAME (E.G., OF AIR-ACETYLENE). IMPROVEMENT IN DETECTION (AS COMPARED TO CONVENTIONAL ASPIRATION OF THE LIQUID SAMPLES SLOWLY INTO THE FLAME) FOR READILY ATOMIZED ELEMENTS (E.G., LEAD, ZINC, SILVER, MERCURY, SELENIUM, ARSENIC, CADMIUM, THALLIUM, ETC.) IS TYPICALLY BETWEEN TEN AND ONE HUNDRED TIMES. EXTREMELY SMALL SAMPLE AMOUNTS (I.E., LESS THAN 0.1 MILLILITER) MAY BE ANALYZED WITH GOOD REPEATABILITY.
Inventors
- 👤 Herbert L Kahn
- 👤 George E Peterson
Bibliographic Details
Claims Analysis
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