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Methods
Methods
Pre-installed One Touch Methods take the guesswork out of method creation and sample preparation. If there is
not a current One Touch Method to digest a sample, visit our website for Method and Application Notes.
One Touch Method Creation
The MARS 6 has preinstalled methods to cover a large variety of samples. If there is not a current One Touch
Method to digest a sample, a One Touch method can be programmed as outlined below. See “Operating
Parameters” section for details when selecting parameters.
1.
From the MARS 6 home screen, select “One Touch Methods.”
2.
Select “+” at the top of the screen to begin creating a One Touch Method.
3.
Select “Method Name” and enter in a name.
4.
Select “Temperature” and enter the desired temperature.
CAUTION
Limit control temperature of organics with HNO
3
to 230 °C. Higher temperatures will permanently damage
liner and sleeve.
5.
Select “Sample Type” and choose the appropriate sample type from the list.
• “Organic” is the recommend sample type for most samples. Contact CEM before selecting any other sample
types.
6.
Select “Hold Time” and enter in the appropriate hold time.
7.
For software versions 1.49 (or greater) proceed with step 8. For software versions 1.48 or lower, enable “Temp-
Guard” as outlined below.
• Always use TempGuard
• Set the TempGuard limit at 30 °C > control temperature if control temperature is < 230 °C.
• Set the TempGuard limit at 20 °C > control temperature if control temperature is > 230 °C
• Limit TempGuard to 250 °C for digestion of organics with HNO
3
• Limit TempGuard to 300 °C for H
3
PO
4
/H
2
SO
4
applications
8.
If applicable, select “Sample Prep Notes” and enter appropriate information.
9.
The MARS 6 will complete all other necessary information to perform the method.
10.
Select “Next.” View the method by scrolling down. If any parameters require revisions, select “Previous” and
make appropriate revisions.
11.
Once the method parameters are entered properly, select the Save icon located in the top right corner.
12.
Once the method is saved, the method may be run by selecting the Play icon.
CAUTION
Observe the entire digestion sequence when establishing a procedure for the first time.
Classic Method Creation
Contact CEM Corporation before creating Classic Methods.