Modifications to the E.E.L. Flame Photometer

Serum Calcium Using the Eel Flame Photometer

Flame photometry has many applications, and in the clinical field its use in the estimation of serum sodium and potassium is now well established. Difficulties have been encountered in the estimation of serum calcium by flame photometry, since the emission spectrum of calcium is relatively weak and is subject to interference by the presence of other ions, e.g., sodium. Although many methods hav...

Microdetermination of serum calcium using the Eel flame photometer.

A lithium internal-standard flame photometer.

Automated estimation of urinary calcium using the Eppendorf flame photometer.

A method is described for estimating urine calcium on a mechanized Eppendorf flame photometer with twin channels at a rate of 60 per hour. Sodium is estimated simultaneously so that a correction can be made for the small sodium error. Errors due to potassium and phosphate are minimized by adding these ions to the standards and to the diluting fluid. Results agree well with those obtained by Tri...

Electrical modifications of the Baird flame photometer which simplify calibration and improve accuracy of low potassium readings.

1HE BAIRD ASSOCIATES FLAME PHOTOMETER designed by White (1) has many advantages in the clinical laboratory for the measurement of serum sodium and potassium because of its simplicity and reliability. A balanced 2-photocell circuit with lithium salt in the diluent as an internal standard largely eliminates the effect of liquid height in the entrance funnel, gas and air pressure, flame’temperatur...