Metrohm 746 VA Trace Analyzer - Manual (Page 304)

5.6.3 SUBSTANCES
746 VA Trace Analyzer / 747 VA Stand
5-153
Method: XXXXXXXX SUBSTANCES
........ - XXXXXXXX
Calibration XXXX-XX-XX XX:XX Coefficients
ДДДДДДДДДДДДДДДДДДДДДДДДДДДДДД ДДДДДДДДДДДДДДДДДДДДДДДДДДДДДД ДДДДДДДДДДДДДДДДДДДДДДДД ДДДДДДДДДДДДДДДДДДДДДДДД
Technique int.std. Prop.fact. ..........
Mode analyte Mean dev. ..........
Ref.subst. ........
Temperature .........°C
# CSoln.name Mass conc.
Range min .........g/L ДДДДДДДДДДДДДДДДДДДДДДДД ДДДДДДДДДДДДДДДДДДДДДДДД
Range max .........g/L 0 ........ .........g/L
1 ........ .........g/L
M.conc./cm .........g/L 2 ........ .........g/L
M.conc.begin ......... 3 ........ .........g/L
4 ........ .........g/L
V0.CSoln. .........mL 5 ........ .........g/L
6 ........ .........g/L
7 ........ .........g/L
8 ........ .........g/L
9 ........ .........g/L
Modify
column
Modify
line
Select
subst.
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segment
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subst.
Subst.
name
>>
Softkeys Meaning
Meaning of the softkeys F1...F7, see page 130
>> Switching to subpage "Substance parameters"
Switching to the subpage "Substance parameters" with the parame-
ters for substance recognition, baseline calculation, scaling and
evaluation.
Parameter Range; Default value / Meaning
Calibration
XXXX-XX-XX
XX:XX display only
Date of calibration
Date and time of the calculation of the calibration curve for the internal
standard.
Technique none, std.add., cal.crv., int.std.; none
Calibration technique = Internal standard ( int.std. )
With the internal standard method, a known quantity of a reference
substance (r) is added to the analysis solution (see section 6.9.6). The
mass concentration
ρ
a
= Mass conc. of the analyte (a) is calculated
as follows from the ratio of the two evaluation values EV
a
/ EV
r
and the
proportionality factor Prop.fact. determined beforehand by meas-
urement of various standard solutions:
ρ
a
= ρ
r
× EV
a
/ EV
r
× 1 / Prop.fact.
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