29
Metalyser HM5000 Benchtop
Instruction Manual v1.0
www.trace2o.com
The table has four possible entries for the sample concentration. The first entry
would normally be 0 as this is the unknown concentration of the sample that
is trying to be establshed. The second, third and fourth entries would be the
sample concentration after each addition of a standard. In the above example,
three standard additions are performed, each of 20ppb, and the concentration
is increased by 20ppb each time. The peak heights can be recorded for each of
the additions, and up to three repeats for each addition can be entered. The table
does not need to be filled. When all data is entered, click
Calculate
and the mean
peak heights will be calculated and a graph plotted of concentration vs peak heigh.
A line of best fit will be drawn through the data and the y-intercept shown, which
corresponds to the unknown sample concentration for the metal of interest.
