Type FPF-2 Hitachi Flame Photometer

A lithium internal-standard 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.

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...

Automation photometer of Hitachi U–2000 spectrophotometer with RS–232C–based computer

The interfacing of a commonly used spectrophotometer, the Hitachi U2000, through its RS-232C port to a IBM compatible computer is described. The hardware for data acquisation was designed by suitably modifying readily available materials, and the software was written using the C programming language. The various steps involved in these procedures are elucidated in detail. The efficacy of the pr...