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Clinical Chemistry 11: 633-640, 1965;
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Clinical Chemistry, Vol 11, 633-640, Copyright © 1965 by the American Association for Clinical Chemistry

Operation of the Technicon Flame Photometer with Natural Gas Use in the Determination of Serum Lithium and the Semi-Micro Analysis of Serum Sodium and Potassium

Donald B. Nevius 1 and Gerard F. Lanchantin 1

1 Division of Laboratories of the Cedars Division of Cedars-Sinai Hospitals, Los Angeles, Cal. 90029.

Natural gas was substituted for propane gas in the oxygen-fuel mixture supplying the Technicon AutoAnalyzer flame photometer. This was accomplished by the use of a 1/3-hp rotary pump and attached manifold, which compressed the gas from the city line and supplied it at a constant pressure to the burner module of the system. A method for the automatic analysis of serum Li was devised by using K as an internal standard and comparing the output of the Li-sensitive photo-cell with that of an attenuated K-sensitive cell. In addition, a simple procedure was incorporated into the routine determination of serum Na and K: samples of insufficient volume were diluted in a solution of known electrolyte concentration, which permitted their quantitation without changing the tubing manifold or other operating components of the system.

Submitted on October 21, 1964
Accepted on February 17, 1965






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Copyright © 1965 by the American Association for Clinical Chemistry.