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CEM MARSXpress Plus User Manual

CEM MARSXpress Plus
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Page #12 background image
8 New Liner, Plug, and Cap Conditioning
Non-Nitric Acid Liner, Plug, and Cap Conditioning
1. Use hot soapy water and foam brush to clean the liners, plugs, and caps. Rinse thoroughly with DI water and
allow to dry completely before use.
NOTE
Micro 90 Cleaner® liquid detergent works well on Teon. Avoid detergents that contain ingredients that
could cause potential contamination such as Na and P. Avoid abrasive cleansers and stiff brushes which
can scratch the Teon surface.
2. Place 0.25 g ± 0.05 g of your sample into each liner. Never add sample or liquid to liner with sleeve in place.
3. Add 10 mL of the digestion acid to each liner. Use the acid to rinse the inside of the liner to ensure that the
sample is in the base of the liner.
NOTE
For non-acid applications, use 20 mL of water. The minimum cavity load for water is 50 mL.
4. Wait 15 minutes to allow pre-digestion.
5. Assemble and torque each vessel. See “Vessel Assembly” for detailed instructions.
6. Select and load the “Xpress Clean” method from the One Touch directory.
7. Place vessels in turntable and insert the turntable into the cavity. See “Turntable Setup” and “Vessel Distribu-
tion” for detailed instructions.
8. Close the instrument door and run the preprogrammed “Xpress Clean” method. Verify that vessel count, type,
and position are correct. It is normal for vessels to vent during digestion.
9. After completion of the method, permit the vessels to cool in the automated sequence until the vessels cool
for a minimum of 15 minutes.
WARNING
Allow vessels to cool for a minimum of 15 minutes before opening the microwave door.
To prevent the possibility of severe burns, ensure that gloves and protective gear as outlined in your safety
program are worn.
10. Remove the vessel assemblies from the turntable. See “Vessel Removal” for detailed instructions.
11. Rinse the liners and plugs with deionized water.

Questions and Answers:

CEM MARSXpress Plus Specifications

General IconGeneral
BrandCEM
ModelMARSXpress Plus
CategoryLaboratory Equipment
LanguageEnglish

Summary

Safety

Safety Notations

Explains the use of three safety alert words (NOTE, CAUTION, WARNING) and their meanings.

Introduction

About the MARSXpress Plus Vessels

Describes the MARSXpress Plus vessel, its applications, and compatibility with MARS 6 systems.

Important Safeguards

Operating Parameters

Details maximum acid volume, temperature, hold time, and sample weight for MARSXpress Plus vessels.

Microwave Safeguards

Provides essential safety guidelines for operating the MARS 6 microwave digestion system.

Sample Preparation Safeguards

Outlines safe practices for preparing samples before microwave digestion.

Vessel Safeguards

Lists precautions for using, assembling, and conditioning MARSXpress Plus vessels and components.

Unsuitable Compounds for Digestion

Highlights chemical compounds that should not be digested in closed vessels due to hazard.

Vessel and Accessories Overview

Vessel Components

Details the individual components of the MARSXpress Plus vessels, including liners, plugs, and caps.

System Accessories

Presents images and names of optional accessories for the MARSXpress Plus system.

New Liner, Plug, and Cap Conditioning

Nitric Acid Conditioning

Step-by-step guide for conditioning liners, plugs, and caps for use with nitric acid.

Non-Nitric Acid Conditioning

Step-by-step guide for conditioning liners, plugs, and caps for non-nitric acid applications.

Perform a Digestion

Vessel Assembly

Instructions on how to correctly assemble the MARSXpress Plus vessels before loading into the turntable.

Turntable Setup

Guides on how to correctly load the assembled vessels and turntable into the MARS 6 cavity.

Load and Run Method

Steps for loading the prepared samples and running a digestion method on the MARS 6.

Vessel Removal

Cleaning and Inspection

Liner, Plug, and Cap Cleaning

Procedures for cleaning and inspecting the vessel liners, vent plugs, and caps.

Liner Bake-out Procedure

Describes the bake-out process to remove residual acid vapors from Teflon liners.

Sleeve Maintenance

Guidance on cleaning, inspecting, and maintaining the vessel sleeves.

Turntable Cleaning

Instructions for cleaning and maintaining the MARSXpress Plus turntable.

Vessel Distribution

Methods

Create One Touch Method

Step-by-step guide to programming custom One Touch digestion methods on the MARS 6.

Fiber Optic Temperature Control (optional)

Fiber Optic Probe Installation

Procedure for connecting and configuring the fiber optic probe for temperature measurement.

Fiber Optic Verification

How to verify the accuracy of the fiber optic probe's temperature readings.

Fiber Optic Probe Care

Best practices for handling and storing the fiber optic temperature probe.

Routine Maintenance

Routine Maintenance: After Every Use

Tasks to perform immediately after each use of the MARSXpress Plus vessels.

Routine Maintenance: As Needed

Maintenance procedures to be performed when specific issues arise or as required.

Routine Maintenance: Annually

Annual service recommendations for the MARSXpress Plus system.

Troubleshooting

Troubleshooting: Problems and Solutions

Lists common issues encountered with MARSXpress Plus and their corresponding solutions.

Technical Assistance

Technical Assistance: Applications Support

Information on how to get application-specific help and resources from CEM.

Technical Assistance: Technical Support

Contact details for obtaining technical support for the MARSXpress Plus system.

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