Investigation of a coaxial boosted-output hollow-cathode lamp for atomic absorption |
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Authors: | SA Myers |
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Institution: | Research Dept. The Perkin-Elmer Corporation, Norwalk, Conn. 06856 U.S.A. |
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Abstract: | A version of the boosted-output, hollow-cathode lamp has been studied as a possible light source for atomic absorption. Our version of this lamp utilizes a secondary electrical discharge to enhance the emission. passing axially through the center of an open cylindrical cathode. Eventually the increase in intensity is accompanied by a decrease in the absorbance of test solutions due to line-broadening in the lamp. Using the criterion of equivalent absorbance, lamps of this design provided ten to twenty times the intensity of commercial hollow-cathode lamps for the elements studied: aluminum, molybdenum, titanium vanadium and copper. |
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