4-9
4.2 Software Basic Operation
AA-6800/6650 Instruction
(Example)
2 g of sample was weighed, filled with water to 50 ml, diluted to 5 times and measured. In this case, the
actual concentration is calculated with the following equation using the factors; [Weight Factor]: 2 (g),
[Volume Factor]: 50 (mL), [Dilution Factor]: 5 (times) and [Correction Factor]: 1.
Actual conc. = (Conc.) u (50 mL) u (5 times) u 1/(2 g)
Also, if calculating the actual conc. (%) from the conc. (ppm) by converting the unit, use 0.0001 for
[Correction Factor] since 1 ppm is 0.0001 %.
Actual conc. (%) = (Conc. (ppm)) u (50 mL) u (5 times) u 0.0001/(2 g)
(6) Enter [Number of STD]. Then a table composed of as many rows as the sample number is created in the
[STD Samples] preparation parameters.
(7) Input the actual concentrations of the prepared standards into the table, although the default values from
the cookbook are indicated on the table. When using the ASC, also input the turntable positions (1 to 60,
R1 to R8).
(8) [Blank Samples]
Set up the periodic blank measurement here.
Periodic blank measurement is a function to create a measurement procedure on the MRT to remove the
influence of baseline drift by inserting a blank measurement at a fixed interval. Use it when the sample
number is large or the baseline drift occurs.
• When the [Periodic Blank] is not used
Leave the [Periodic Blank] field [Off].
• When the [Periodic Blank] is used
1. Click on the [Periodic Blank] field and click on the [ ] button at the right of [Off]. Then the list for
[On/Off] is displayed. Select [On].
2. Click on the [Meas. Interval] field and enter the numerical value to insert the blank measurement
in every some samples.
3. [Pos.] indicates the blank position on the ASC turntable. When using the ASC, click on the [ ]
button at the right of [Pos.] and select the position from the list.
(9) After setting the parameters, click on [OK] to return to the [Preparation Parameters] page. In the case of
multi-element analysis, click on the next row to highlight it, then click on [Edit] and set the parameters in the
same way.
(10) When completing all the settings, click on [Next]. Then the [Sample ID] page will appear.
NOTE
Generally, "ppm" is the concentration unit of 10
6
. In the atomic absorption analysis, "ppm" indicates both
"Pg/g" for solid samples and "Pg/mL (mg/L)" for liquid samples.
NOTE
In the case of flame analysis, the fields for mixing parameters (sample volume, diluent, 1st reagent, etc.) are
not displayed on the dialog box. Loading and saving of preparation parameter files are not available.
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