6. LINEAR REGRESSION
The Metalyser
®
HM3000 has a built-in
spreadsheet
function enabling the
user
to perform linear
regression
on the analysis data.
To create a
spreadsheet, input and element name in the box to the right of
Element Name
.
Multiple
spreadsheets
can be
created by selecting
Spreadsheet
from the Tools drop down menu.
To delete a spreadsheet, press
the X in the top right corner of the spreadsheet inner window.
The table has four possible entries for concentration. The first entry would
normally be zero as this related to the unknown concentration in the sample
trying to be established. The second, third and fourth entries would be the
total concentration of standard added after each standard addition. In the
below example, three standard additions are performed, each of 20ppb. The
calculated peak heights from the graph tab need to be calculated and
entered into the table. To achieve greater accuracy, repeat analysis can be
run after each addition to give an average over three readings, although this
Metalyser® Field Pro HM3000 Instruction Manual v 5.0
To Next Page
Loading...
