The accuracy of zinc determination by atomic absorption methods

The best experimental conditions for zinc determinations by atomic absorption spectrophotometry, air pressure, slit width and concentration limits have been established. The precision of the method is calculated on the basis of error calculus of absorption measurements. If solutions containing 30–120 ppm of Zn 2+ are measured, the relative errors are lower than ±0.5%. Interferences of anions and cations have been investigated, and found in most cases to be negligible.