PT - JOURNAL ARTICLE AU - A. M. Bold AU - R. J. Hurst AU - R. R. McSwiney TI - Automated estimation of sodium, potassium, and calcium using the Eppendorf flame photometer AID - 10.1136/jcp.18.2.240 DP - 1965 Mar 01 TA - Journal of Clinical Pathology PG - 240--243 VI - 18 IP - 2 4099 - http://jcp.bmj.com/content/18/2/240.short 4100 - http://jcp.bmj.com/content/18/2/240.full SO - J Clin Pathol1965 Mar 01; 18 AB - An Eppendorf flame photometer may be used to estimate sodium, potassium, and calcium in plasma which has been automatically sampled and diluted. Readings may be automatically recorded by feeding the output from the photomultiplier into a sensitive recorder. This method estimates 60 samples an hour, using approximately 0.12 ml. plasma per estimation. The accuracy of the method is discussed.