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CEM | Microwave Digestion




Technology

Acid digestion is vital for the preparation of samples for elemental analysis by ICP, ICP-MS or AA spectroscopy. Traditional acid digestion techniques using a hot plate are time consuming and often provide incomplete digestion. In addition, due to the acid fumes released from open vessels, this technique causes unnecessary corrosion and hazardous working environments. With CEM’s innovative closed vessel design and acid resistant microwave digestion systems, high temperatures and pressures can be achieved, resulting in the rapid digestion of all sample types. Sample preparation time is reduced from hours to minutes, using less acid, retaining all volatiles and providing a much safer laboratory environment. Whether your work flow requires batch digestion or sequential/ad-hoc tests, CEM have the solution with instrumentation to digest any type of organic and inorganic samples: - MARS™ 6 – Batch digestion for high throughput testing laboratories - Discover® SP-D™, Discover® SP-D Gold™ – Sequential digestion system designed for laboratories where every sample is unique - STAR™ - Atmospheric digestion for larger samples.


FEATURED ARTICLES


Microwave Digestion Systems by CEM Corporation: An Interview with Bob Lockerman
by Alessandro Pirolini
AZO, August 21, 2014.
CEM's Analytical Product Manager, Bob Lockerman discusses the Discover SP-D.

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“Determination of Total Mercury Content and Trace Metal Analysis in Wood Materials — Part 1:ICP-OES Using Mercury Cold Vapor”
by Heidi Fleischer and Kerstin Thurow
American Laboratory, August 2013.
The authors used a MARS Microwave Reaction System with XP-1500 vessels to digest a variety of wood samples for this study.

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“Analysis of Toxic Trace Metals in Pet Foods Using Cryogenic Grinding and Quantitation by ICP-MS, Part 1.”
by P Atkins, L Ernyei, W Driscoll, R Obenauf, and R Thomas
Spectroscopy, Jan 2011.
The authors used a MARS Microwave Reaction System with XP-1500 vessels to digest pet food samples for this study.

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Discover SPD

Discover SP-D

Welcome to a revolutionary advance in pressurized microwave digestion! Fast and remarkably simple, the Discover SP-D changes the laboratory paradigm for microwave digestion. Escape the confines of traditional box-style microwave digestion systems and experience an incredible ease-of-use you’ve never had before in sample preparation.

• Complete digests in 10 minutes, including cool down
• Pressurized vessels with easy snap-on caps
• Patent-pending ActiVent™ Technology automatically controls vessel pressure
• Sample sizes up to 0.3g (dry wt.)
• Safest technology for microwave digestion
• Individual method programming for each sample
• Full pressure & temperature control for each sample
• Compact – smaller than box-style microwave digestion systems
• Optional automation deck available – load it and leave it, even overnight
• Pressurized vessels of 10 ml and 35 ml with easy snap-on caps

Available Vessels
10-mL vessels – Pyrex®
35-mL vessels – Pyrex®
10-mL vessels – Quartz
35-mL vessels – Quartz
10-mL Teflon® liner (can be used with either glass or quartz vessel)
35-mL Teflon® liner (can be used with either glass or quartz vessel)


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Disocver SPD 80

Discover SP-D 80


Process samples completely unattended. The Discover SP-D is more than the latest technology for microwave digestion: it is a new concept in sample preparation. Discover SP-D is a sequential, pressurized microwave digestion system that processes samples completely unattended, allowing laboratory staff to tend to other tasks. Just load the autosampler press play and walk away. The SP-D will do the rest.
• Complete digests in 10 minutes, including cool down!
• Pressurized vessels with easy snap-on caps
• Patent-pending ActiVent™ Technology automatically controls vessel pressure
• Sample sizes up to 0.5 - 1g (dry wt.)
• Safest technology for microwave digestion
• Individual method programming for each sample
• Full pressure & temperature control for each sample
• Compact – smaller than box-style microwave digestion systems
• Optional automation 24-place deck available – load it and leave it, even overnight
• Pressurized vessels 80-mL quartz vessels with easy-to-use snap-on caps

Available vessels
80-mL vessels - Quartz only
80-mL Teflon® liner

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Disocver SPD Gold

Discover SP-D Gold

CEM has advanced microwave technology once again. The Discover SP-D Gold is the most dynamic microwave digestion system on the market. This automated sequential system will digest your most extreme samples using proprietary vessels that can withstand higher temperatures and pressures.

• Complete digests in 10 minutes, including cool down
• Digest coal, oil, aromatic compounds and polymers as well as routine samples such as consumer products and pharmaceuticals
• Pressurized 70 ml quartz vessels with easy snap-on caps
• Patent-pending ActiVent® Technology automatically controls vessel pressure
• Sample sizes up to 2 g
• Safest technology for microwave digestion
• Individual method programming for each sample
• Full pressure & temperature control for each sample
• Compact – smaller than box-style microwave digestion systems
• Optional automation 24-place deck available – load it and leave it, even overnight


Available vessels
70-mL vessels - 4 mm Quartz

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Mars 6

Mars 6

One Touch Makes All the Difference

CEM brings a remarkable intelligence and ease of use to microwave sample preparation with the new MARS 6 Microwave Reaction System. Totally redesigned with an impressive list of features and capabilities, MARS 6 was developed to make microwave sample preparation virtually effortless. At the heart of the MARS 6 is CEM’s new One Touch™ Technology, an unparalleled combination of more than 30 years of microwave chemistry expertise with the most advanced software, sensor, and touchscreen technologies. It’s like having a CEM chemist built into the system. Simply choose a One Touch method and the MARS 6 does the rest, automatically recognizing the vessel type, counting the vessels, and determining all of the parameters necessary for a fast, complete reaction.

• Choose from simple CEM One Touch™ Technology or MARS Classic method programming
• PowerMAX™ power control technology delivers maximum energy to the sample for more complete digestions
• 1800 Watts - more power delivery than any other microwave digestion system
• Large wide-format, high-resolution, acid-resistant touchscreen – no external controllers needed
• Remarkably easy-to-use, intuitive onboard software
• Advanced sensor technology for vessel recognition, temperature and pressure control
• The introduction of the MARS 6 adds two new vessels to the CEM line of microwave digestion accessories.
• All existing vessels from MDS 2000 and MARS 5 can still being used in the MARS 6

Available vessels
MARSXpress™ & MARSXpress™ Plus
The easiest-to-use, high-throughput vessel on the market, this patented three-piece vessel assembles in seconds. The open turntable design and composite sleeves allow for quick cooling. MARSXpress vessels have a self-regulating pressure control to eliminate the risk of over pressurization. MARSXpress vessels work in conjunction with CEM’s patented Contactless All-Vessel Temperature Control and now MARSXpress Plus with DuoTemp combines the fiber optic and IR temperature sensors in a high throughput format.

EasyPrep™ & EasyPrep™ Plus
The gold standard in high-temperature, high-pressure reaction vessels. Simple-to-use EasyPrep vessels have fewer pieces to assemble and do not require membranes or springs for reliable pressure control. Process up to 12 samples simultaneously. EasyPrep vessels feature a control cover with an integrated thermowell for an all TFM-wetted surface, while EasyPrep Plus vessels feature a control cover that utilizes a sapphire thermowell for greater temperature control. Also available in TFM®.

UltraPrep Vessel
Designed specifically for ultra high-temperature digestions, the new UltraPrep vessel is our highest pressure and temperature vessel, with operating parameters over 300 °C and 1500 psi. Especially suited for refractory inorganics and inert metals and alloys, applications include, silicon carbide, rhodium, and other materials resistant to dissolution and digestion. Available in two internal volumes to minimize internal surface area.

GreenChem™
Perform up to 14 reactions simultaneously at temperatures up to 200 °C or pressures up to 200 psi. These 100-mL vessels are available with either PFA Teflon or glass liners.

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Star

Star

Digest Large Sample Sizes and Achieve Lower Detection Limits

Complete digestion of larger size samples have never been easier with the STAR Plus System. It is the only open vessel system that offers a unique patented temperature feedback control, the ability to process samples using different programmable methods, and the safety and convenience of automated reagent addition. The system incorporates one miniaturized reagent pump for every reagent on every cell, eliminating cross contamination of reagents. The STAR Plus System is also capable of evaporating digested samples to dryness.

• Process 2 different samples independently using different
• Automated evaporation of sample and reagent to dryness
• Automated reagent addition
• Pre-programmable "Time-to-temperature" parameters for rapid optimization of methods
• 1 pump per reagent for each individual cell
• Easily digest difficult or highly reactive samples in sizes up to 10g
• Self-contained scrubber system frees fume hood space
• System software tracks reagent supply to prevent depletion
• Software is easy to learn and intuitive to use - requires less than 30 minutes training
• Vessels and condensors in Pyrex, Quartz and Teflon are available.

Features
Fast & Flexible
Process 2 samples independently using different methods with simultaneous or sequential start times. The STAR System uses proprietary microwave technology to ensure rapid, complete digestions in an open vessel system that can handle sample sizes up to 10 grams.

Safe
Eliminate handling of hazardous chemicals with the STAR's automated reagent addition. The STAR System is environmentally-friendly. Automated reagent addition eliminates handling of hazardous chemicals and a self-contained vapor scrubber keeps fumes from escaping into the laboratory.

Easy-to-Operate
The STAR System features pre-programmable "Time-to-temperature" parameters for rapid optimization of methods.
Vessels for the STAR Plus System
250-mL Pyrex Vessels – Standard vessels for routine applications
250-mL Quartz Vessels – Designed for high temperature applications and acid concentration
250-mL Teflon Vessels – Used for HF and phosphoric acid digestions
Volumetric Pyrex Vessels – Eliminate transfer steps by digesting and bringing sample to volume in a single vessel (50- or 100-mL vessels)


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Company

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