Hitachi ZA3000 Series Instruction Manual page 129

Fig. 5-11 Existing Working Curve Confirmation Window
(5) Clicking the [Working Curve Preview] button presents a list
of working curves copied. Then, when a working curve
corresponding to the analyte element is double-clicked, the
Working Curve Detail dialog box will open. In this dialog
box, check the conditions of the working curve concerned.
(6) Click the [Verify] button and start measurement.
NOTE: Since the atomic absorption photometry is subject to
constant changes of sensitivity, use the existing
working curves measured as recently as possible.
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5.4