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Analytical Sciences Analytical Sciences / Physico-chemical analysis / Physico-chemical analysis / Elemental Analysis / Elemental Analysis / Carbon / Hydrogen / Nitrogen Determinator 628 Series
Galery
Galery

Carbon / Hydrogen / Nitrogen Determinator 628 Series

Leco

Galery
Galery

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Carbon/Hydrogen/Nitrogen Determinator

The CHN628 represents the fifth generation of LECO Organic Elemental Combustion Instruments.

Advantages

  • Maximize Throughput up to 14 analysis per hour while keeping Cost-Per-Analysis Low
  • Fastest analysis : result within 4 to 5 minutes for all the elements being determined and for all sample masses
  • Complies with AOAC, ASTM, ISO, AACC, and ASBC approved methods
  • Ability to handle macro sample mass to 750mg of solids and up to 1ml of liquids
  • Proven LECO combustion technology, allows system to analyze a wide variety of organic samples with high precision and accuracy under one method and calibration
  • Sulfur add-on module provides independent sulfur determination in less than 2 minutes
  • Simplified data handling, customizable data reporting/exporting
  • Enhance safety and convenience for maintenance routine
Description
Specification
Applications
Resources

The CHN628 utilizes a combustion technique and provides a result within 4.5 minutes for all the elements being determined. Simplified explanation of the operation principle can be summarized as follow: A sample is weighed into a foil or capsule and loaded into autoloader. Simple, gravity-fed autoloader allows for unattended analysis, while increasing long-term reliability of loader. Passing first the purge chamber that is removing atmospheric gas,  the sample is introduced to furnace.

  • Dual-stage furnace system operates at temperatures up to 1050°C with pure oxygen to ensure the complete combustion of all organic samples, without requiring additional metal oxidizing reagents or other carrier gases
  • Quartz lance directs oxygen flow directly onto the sample, accelerating the combustion process and providing superior recovery
  • Large, porous crucible aids combustion process and extends maintenance intervals reducing ash
  • Ballast and Aliquot Combustion Gas Handling system significantly extends lifetime of carbon scrubber and reduction reagents
  • To increase even more convenience of use, the  CHN628 has open access to ballast and pinch valve assembly areas with quick-release features to simplify preventive maintenance routines
  • Fast replacement tubing kits available with sealed unions and fittings for quick service

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