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Easy-To-Assemble High Throughput Vessel
MARSXpress Plus

The world’s most popular vessel for routine samples, but larger.


This vessel is based upon the simplicity of the MARSXpress vessel but allows for a larger working volume due to the 110 mL vessel volume. The MARSXpress Plus is designed to run samples similar to the MARSXpress vessels such as: plant and animal tissues, mixed food samples, consumer products, and industrial hygiene. Up to twenty four vessels can be prepared simultaneously to meet the throughput requirements of most analytical laboratories.

Vessel Options


  • Easy to assemble 3 piece vessel
  • Digest up to 24 vessels for your high throughput needs
  • Digest larger samples than MARSXpress Vessels
  • Broad range of applications

CEM - MARSXpress - Easy to assemble


A simple vessel for your routine samples.

MARSXpress vessels are the world’s easiest to assemble vessels that only require a simple hand tightening tool. Just one click to tighten the vessel and you are ready for digestion. They do not require the use of springs or membranes and don’t require preforming.

CEM - MARSXpress - Bigger Vessels

Bigger Vessels

Larger sample needs? No problem.

The MARSXpress Plus vessel can digest more sample weight than the MARSXpress and is larger in diameter, making sample addition and cleaning even easier. A great vessel for digesting foods, feeds, fertilizers, consumer products, plant and animal tissues.


What do you want
to digest today?

The following materials can be completely digested at the listed maximum sample size.

Sample Type

Max Size


Animal and Fish Tissue 0.6 gram Clear
Environmental Solids 0.5 gram Clear
Feeds and Fertilizer 0.6 gram Clear
Filter (paper & cellulose) 0.5 gram Clear
Foods 0.6 gram (dry weight) Clear
Infant/Geriatric Formula 0.5 gram (dry weight) Clear
Nutraceutical 0.6 gram Clear
Nylon 0.3 gram Clear
Pharmaceutical (excluding API with aromatic rings) 0.3 gram Clear
Plant Tissue 0.6 gram Clear
Polypropylene 0.3 gram Clear
Waste Oil 0.1 gram Clear

CEM - Method Notes

Method Notes

CEM application chemists have a combined total of over 100 years of digestion experience. Our Senior Chemist has been preparing samples in our laboratory for over 35 years. Here are typical sample categories for acid digestion.

View the Method Notes
Agriculture Nutraceuticals
Clinical and Biological Organic Chemicals
Consumer Products Paints and Coatings
Environmental and Regulatory Personal Care (Health and Beauty)
Food Testing Pharmaceuticals and Biotech
Geoscience and Mining Plastics, Polymers, and Oils
Industrial Hygiene Pulp and Paper
Materials Science Water and Wastewater Treatment
Metals and Alloys