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A Spark-In-Spray Attachment for Commercially Available Arc-Spark Stands

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A very simple technique which is apparently reproducible (1) as well as sensitive (2) has been called the spark-in-spray technique. Malmstadt and Scholz (1) as well as Schalge (2) used a Beckman atomizer to spray the solution between horizontally mounted electrodes across which a high voltage spark was impressed. There are many objections to using horizontally mounted electrodes. For instance, nearly all spectrographs and arc-spark stands are constructed for vertical electrodes. Also, it is more difficult to control the excess spray when using horizontally mounted electrodes than when the usual vertically mounted electrodes than when the usual vertically mounted electrodes are used. The purpose of this communication is to describe an attachment that allows the spark-in-spray technique to be used with commercially available excitation stands. Figure 1 shows such an attachment mounted in a Jarrell-Ash No. 19300 Arc-Spark stand (Jarrell-Ash Company, Newtonville, Mass.). The only alterations which had to be made to the arc-spark stand were the addition of a second gas inlet and the drilling of two ⅛-in. threaded holes in the movable platform of the stand. These holes are needed for mounting the attachment in the arc-spark stand.

Document Type: Research Article


Affiliations: Marathan Oil Company, Littleton, Colorado

Publication date: November 1, 1963

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