Judgment Standards For Automatic Generation Of Temperature Program - Hitachi ZA3000 Series Instruction Manual

Polarized zeeman atomic absorption spectrophotometer
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10.4 Judgment Standards for Automatic Generation of Temperature Program

10.4 Judgment Standards for Automatic Generation of Temperature Program
In the Temperature Program Development function, judgment
will be made according to the following standards.
 Dry Test
According to the comparison of repeatability (RSD) at
different [Start Temp.] in the [Dry Test], the temperature that
ensures the best repeatability (RSD) will be judged as the
[Start Temp.] of the heating temperature program.
NOTE:
If there are two or more start temperatures ensuring
the best repeatability (RSD), the lowest one will be
judged as the [Start Temp.].
 Ash Test
Judgment will be made according to the comparison of
absorption sensitivity when changing the [Start/End Temp.] in
the [Ash Test].
<1> When the absorption sensitivity falls 10% or more, the
test will be terminated. The temperature just before the
sensitivity falls will be judged as the [Start/End Temp.].
<2> If the absorption sensitivity falls twice in succession
though the fall lies within 10%, the test will be terminated.
The temperature condition that causes the first
sensitivity dip will be judged as the [Start/End Temp.].
<3> If an ashing test is terminated without satisfying the end
conditions in <1> and <2>, the maximum ashing
temperature entered for [Temp. Program Test Condition]
will be judged as the [Start/End Temp.].
NOTE:
When the end conditions in <1> and <2> are met, the
test of the relevant element will be terminated and the
procedure will advance to the next element.
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