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How do you calibrate atomic absorption spectrophotometer? 

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The calculation algorithm suggested provides linearization of the calibration curves in high-resolution continuum source electrothermal atomic absorption spectrometry.
This atomic absorption method provides substantial improvement in sensitivity, adequate accuracy, and acceptable precision, and little sample preparation is required before the analysis.
For the first time in an atomic absorption technique, samples and related standards were used in the emission source instead of an absorption source, and a high degree of accuracy and precision was obtained.
Therefore, the more frequent use of radiotracers in investigations aimed at improving the accuracy of atomic absorption spectrometric methods would be beneficial.
The method is simple and rapid and compares favourably with the atomic absorption procedure based on absorbance ratios.
The proposed system allows the determination of 60 test samples in 1 h and it can be easily adapted to conventional atomic absorption spectrometers.
The equation is shown to be applicable in fitting the analytically useful concentration range of atomic absorption calibration curves.

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