Metrohm 746 VA Trace Analyzer User Manual
Page 367
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5.7 Program instructions
746 VA Trace Analyzer / 747 VA Stand
5-216
Examples
Lead determination using a calibration curve with the
CSOLN/M
instruction (basic structure only):
Method Cal-2 .mth OPERATION SEQUENCE
Title Calibration curve with CSOLN/M
================================================================================
Instructions t/s Main parameters Auxiliary parameters
––––––––––––– ––––– ––––––––––––––––––––––––– –––––––––––––––––––––––––
1 D SMPL/M V.fraction mL V.total L
2 C (CAL
3 C CSOLN/M solution added into MEAS
4 (REP
5 SEGMENT Segm.name DPASV
6 REP)2
7 ØMEAS U.standby mV
8 RINSE Cycles 1 V.rinse mL
9 C CAL)3
10 END
.
.
Method Cal-2 SUBSTANCES
Pb - DPASV
================================================================================
Calibration 1993-11-16 09:42 Coefficients
–––––––––––––––––––––––––––––– –––––––––––––––––––––––––
Technique cal.crv. Y.offset
Curve type 0/linear Slope 0.0006743
Temperature 20.0 °C Nonlin.
Mean dev. 3.043e–10
Range min 2 ug/L # CSoln.name Mass conc.
Range max 30 ug/L –––––––––––––––––––––––––
M.conc./cm 5 ug/L 0 Pb-2.5 2.5 ug/L
1 Pb-5 5 ug/L
V0.CSoln. 10.000 mL 2 Pb-10 10 ug/L
3 Pb-25 25 ug/L
In the program run mode
calibration
, 4 calibration solutions each of
10 mL are measured in succession and used to determine the calibra-
tion curve. After each calibration solution, the prompt
Change measuring
vessel
to change the measuring vessel appears. Lead is then deter-
mined in the program run mode
determination
using the measured
calibration curve.
see also
(CAL, CAL)n, CSOLN/F, CSOLN>M, RINSE,
Calibration curve (section 5.6.3 and section 6.9.5),
Internal standard (section 5.6.3 and section 6.9.6)