DEENA & DEENA II (Legacy Systems)
Predecessors to the DEENA 3 and 4, these systems are robust automated sample digestion blocks used widely across the world for streamlined digestion and sample preparation.
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Revolutionizing Automated Digestion Since 2007
Since its introduction in 2007, the DEENA automated digestion system has streamlined laboratory workflows, setting new standards for precision, efficiency, and safety in sample digestion. Originally developed by Thomas Cain Inc., the DEENA system was designed to meet the growing demand for automated sample preparation solutions in environmental and industrial laboratories through the contact-free automation of reagent dispense, mixing, heating, and sample reconstitution after digestion.
In 2013, SEAL Analytical’s acquisition of Thomas Cain Inc. marked a turning point, bringing the DEENA system into SEAL’s expanding suite of automated laboratory solutions. With this acquisition, SEAL Analytical integrated Thomas Cain’s proven technologies into its mission of delivering cutting-edge automation for environmental, agricultural, and commerical analysis. SEAL’s extensive experience in manufacturing analyzers and laboratory systems further strengthened the DEENA’s capabilities and global reach.
Building on Success: The DEENA II Automated Digestion System
Building on the success of the original DEENA, the DEENA II was launched in 2016. This second-generation system introduced a host of enhancements, including improved automation, compact design, intuitive software, and increased resistance to corrosive acids. It set a new benchmark for automated digestion systems, offering greater flexibility and reliability for laboratories worldwide. These new features helped the DEENA II quickly spread around the world as a reliable fixture in metals analysis across environmental, industrial, and mining laboratories.
A key feature of the DEENA systems is the optional self-contained fume hood. This HEPA-filtered attachment connects to existing lab ductwork and enables the DEENA to operate on standard benchtops, conserving valuable hood space and reducing metals contamination. With a space-saving design and metal-free digestion zone, the system provides a safe and contamination-free digestion setup, further enhancing its appeal to modern laboratories.
The DEENA and DEENA II serve as the foundation for SEAL Analytical’s DEENA 4. This latest iteration continues the legacy of innovation, combining years of expertise and customer feedback to deliver an unparalleled system adaptable to the unique needs of different industries.
The DEENA series is a testament to SEAL Analytical’s dedication to advancing automated laboratory processes. From sample digestion to analysis, SEAL’s product suite—including discrete analyzers, continuous flow analyzers, and robotic systems—works together to optimize workflows and deliver reliable results.
Continued Support & Transition to Modern Systems
Whether you’re maintaining an existing DEENA or considering an upgrade to a newer system, SEAL Analytical’s team stands ready to assist. Reach out to our experts for personalized guidance, support, and advice on transitioning your methods and workflows to modern instrumentation.
Ongoing Support for Legacy Systems
All DEENA models are still fully supported by SEAL Analytical. We continue to offer consumables and spare parts as well as service and technical assistance from our support chemists and technicians. Our expert teams provide remote troubleshooting, on-site service visits, and factory repairs. Keep your system running smoothly, contact us today for assistance!
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Meet the DEENA 4: The Next Generation
The DEENA II and DEENA 3 serve as the foundation for SEAL Analytical’s DEENA 4. This latest iteration continues the legacy of innovation, combining years of expertise and customer feedback to deliver an unparalleled system adaptable to the unique needs of different industries. With improved mechanical alignment, options for an 8-way valve pump and dedicated individual pumps, syringe module for sample spiking, modernized and intuitive software, sample tube sensors, and more - the DEENA 4 introduces new ways of optimizing your automation procedures.
DEENA Automated Digestion Block Methods
The DEENA can be programmed to meet your lab’s digestion needs to prep samples for a wide-range of methods. The system is commonly used for digestion before a variety of analyses including metals and mercury analysis. Contact our team for more details on what your DEENA can do for your lab!
| EPA Method Number | EPA Method Name |
| 3005 | Acid Digestion of Waters for Total Recoverable or Dissolved Metals for Analysis by Flame Atomic Absorption (FLAA) or Inductively Coupled Plasma (ICP) Spectroscopy |
| 3010 | Acid Digestion of Aqueous Samples and Extracts for Total Metals for Analysis by Flame Atomic Absorption (FLAA) or Inductively Coupled Plasma (ICP) Spectroscopy |
| 3050A | Acid Digestion of Sediments, Sludges, and Soils |
| 3050B | Acid Digestion of Sediments, Sludges, and Soils |
| 200.2 | Sample Preparation Procedure for Spectrochemical Determination of Total Recoverable Elements |
| 200.7 | Determination of Metals and Trace Elements in Water and Wastes by Inductively Coupled Plasma-Atomic Emission Spectrometry |
| 200.8 | Determination of Trace Elements in Waters and Wastes by Inductively Coupled Plasma-Mass Spectrometry |
| 7470A | Mercury in Liquid Waste (Cold-Vapor Technique) |
| 7471A | Mercury in Soild or Semisolid Waste (Cold-Vapor Technique) |
| 245.1 | Determination of Mercury in Water by Cold Vapor Atomic Absorption Spectrometry |
| 1631 | Mercury in Water by Oxidation, Purge and Trap, and Cold Vapor Atomic Fluorescence Spectrometry |
| 245.7 | Mercury in Water by Cold Vapor Atomic Fluorescence Spectrometry |
Other models
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Frequently Asked Questions
Below, we’ve listed a few frequently asked questions that will help you better understand our Digestion Systems. If you don’t find the answer you're looking for, please don't hesitate to contact our support team for further assistance.
As the digestion block simply follows the programmed steps based on your already approved digestion method, they typically do not require a separate approval to automate an existing approved method.
During any metals digestion, contamination is a concern. The DEENA 4 automated digestion system for trace metals digestion is built with a metal-free digestion zone to minimize the potential for metals contamination. The system utilizes a glass top, PTFE upper housing, and carbon fiber construction for the dispensing arm, along with a graphite digestion block. We take additional contamination-eliminating steps by requiring proper ventilation, removing fumes during the digestion.
The DEENA requires 80 CFM of airflow ventilation if placed in a fume hood. SEAL offers a stand-alone fume hood attachment that connects directly to the top of the DEENA to integrate with existing duct work, which allows for the flexibility to place the DEENA anywhere in the lab, freeing up valuable fume hood space. This stand-alone fume hood is sealed with a foam gasket and HEPA filtration.
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