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21 Methods
Methods
Visit our website for Method and Application Notes or contact CEM Corporation before creating a method. Creation
of a method for use in the MARS 6 requires knowledge and selection of the method control type and sample type
for some vessels as well as temperature control options.
Create a One Touch Method
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.
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 250 °C. Higher temperatures will permanently damage
liner and sleeve
5. Select “Sample Type” and select the appropriate type. Choose Sample Type in method with software version
1.45 or higher as follows:
• Standard = Any acid mixture other than HCl or HF dominant
• HCl = Aqua Regia or acid mixtures that are greater than or equal to 75 % HCl
6. Select “Hold Time” and enter in the appropriate hold time.
7. Enable “TempGuard”.
• Always use TempGuard
• Set the TempGuard limit at 30 °C > control temperature if control temperature is < 250 °C.
• Set the TempGuard limit at 20 °C > control temperature if control temperature is > 250 °C
• Limit TempGuard to 270 °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.”
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 disk icon located in the top right corner. 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.
Create a Classic Method
Contact CEM Corporation before creating Classic Methods.