Classifieds - Analytical Chemistry (ACS Publications)

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How do you choose a technique for elemental analysis?

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Separating HPLC Fractions or Collecting Them?

# 5 Consider arc/spark emission. In 1936, Baird introduced the world's first com­ mercial grating spectrograph and in 1946 the first commercial direct reading spectrometer, creating important turning points in the history of automated elemental analyses. The spectrograph and spec­ trometer revolutionized modern industrial chemistry and made it possible for industry to obtain, in min­ utes, analyses that had previously taken hours by wet chemistry methods. Today, thousands of Baird's optical emission spec­ trometers are in use throughout the world. From boron at 1 ppm in steel to zinc at 4 0 % in brasses; from wear metals at the ppm level to additives at the per­ cent level in oil; the Baird Spectrovac and Spectromet define the state-of-the-art in arc/spark emission spectroscopy. For more information about the Baird Spectrovac and Spectromet call or write us at Baird Corporation, 125 Middlesex Turnpike, Bedford, MA 01730. Tel: (617) 276-6094. Telex 923491. See us at the Pittsburgh Conference, Booth H21.

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CIRCLE 117 ON READER SERVICE CARD ANALYTICAL CHEMISTRY, VOL. 54, NO. 2, FEBRUARY 1982 · 245 A