Metrohm 746 VA Trace Analyzer - Manual (Page 136)

4.4 Lead determination with internal standard
746 VA Trace Analyzer / 747 VA Stand
4-51
• The full report Full report contains not only the usual header (see
section 4.2.6), but also the following important sections:
1 Data for substance Only the substance name Pb is given, the other
evaluation of Pb parameters remain blank as they are not calcula-
ted when the calibration curve is recorded.
2 Data for substance Only the substance name CdRef is given, the
evaluation of Cd other parameters remain blank as they are not
calculated when the calibration curve is recorded.
3 Data for calibration Only the proportionality factor is given.
4 Final results The final result is not calculated as the variable
MC:Pb is not calculated when the calibration
curve is recorded.
• Finally, the calibration curve is printed out:
================== METROHM 746 VA TRACE ANALYZER (5.746.0101) ==================
Method : INTSTD User : Date : 1996-12-16
Mode : DPMODE Determ. : 12161422 Time : 14:22:33
Run : 4 Sample :
Internal standard calibration curve
Curve type : 0/lin Slope : 5.699e-01 Mean.dev. : 3.553e-02
Substance : Pb
• The calibration curve contains the usual header (see section 4.2.6) and
the following important sections:
1 Data for calibration curve Curve type, proportionality factor Slope, mean
deviation of the measured values about the
calibration curve.
2 Calibration curve Measured points (mean values of the measured
peak currents for the calibration solutions),
calculated calibration curve, current axis, axis for
effective mass concentrations of analyte and
reference substance in the measuring vessel.
2
1