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Leco - Elemental Analysis

Being the authority in elemental determination by combustion/fusion in organic and inorganic materials, LECO offers a diversified range of technologically advanced analytical instruments.

Available models

TruSpec Micro

Carbon, Hydrogen, Nitrogen, Oxygen, Sulfur

CHN/CHNS/O

The TruSpec Micro delivers optimal performance in carbon, hydrogen, nitrogen, sulfur, and oxygen determination in solid or liquid micro samples. Components work together to provide you with reliable, consistent performance marked by rapid analysis times, greater robustness/less downtime, and reduced maintenance.

Features

  • Low cost-per-analysis
  • Supports compliance to 21 CFR Part 11 Regulations
  • Nominal sample mass of 2 mg
  • Oxygen module provides independent oxygen determination capabilities with two-minute analysis time using a high-temperature (1300°C) pyrolysis furnace.

Theory of Operation

The efficiency and speed of the TruSpec Micro CHN and CHNS is a result of the unique combination of a flow-through carrier gas system used in conjunction with individual highly selective, infrared (IR) and thermal conductivity detection systems.

A weighed micro sample is placed into the autoloader of the TruSpec Micro and is automatically dropped into the high-temperature combustion furnace, allowing the sample to combust. This combustion converts carbon to CO2, hydrogen to H2O, nitrogen to N2, and sulfur to SO2. The combustion gases are swept from the furnace, through scrubbing reagents, and onto the detection systems as they are being released. Independent IR detectors are used for simultaneous detection of carbon, hydrogen, and sulfur. Nitrogen is measured using a thermal conductivity detection system. The entire analysis cycle is complete in approximately 4 minutes.

The optional micro oxygen add-on module enables the TruSpec Micro to determine oxygen content in organic matrices and is compatible with the both the TruSpec Micro CHN and CHNS models. Samples being analyzed for oxygen are placed into the autoloader of the micro oxygen add-on module and automatically dropped into a high-temperature pyrolysis furnace. The oxygen released during pyrolysis of the sample reacts with a carbon-rich environment in the furnace to form CO. The CO is swept from the furnace and converted to CO2 before measurement via infrared detector (approximately 1 minute analysis time).

928 Series Macro Determinator

Carbon, Nitrogen, Protein, Sulfur

Carbon/Nitrogen/Sulfur and Nitrogen/Protein Analysis by Combustion

Easily handle heterogeneous, difficult to prepare, or low analyte level samples with the 928 Series Macro Determinator for determining Carbon/Nitrogen/Sulfur and Nitrogen/Protein by Combustion. State-of-the-art hardware and our exclusive Cornerstone® touch-screen software platform provide your laboratory with an increase in throughput, uptime, and reliability. Macro sample mass ability (up to 3 grams for Nitrogen/Protein model regardless of sample carbon content) with rapid cycle times and a low cost-per-analysis make the 928 Series ideal for these challenging macro samples.

Features

  • Maximize laboratory productivity with unmatched sample throughput
    • Rapid cycle time of 5 minutes
    • Optional 100-sample position autoloader for sequential and non-sequential analysis
    • Sample mass: Up to 3.0 g for nitrogen (FP) (1.0 g nominal); up to 1.0 g for carbon/nitrogen (0.5 g nominal); up to 0.3 g for carbon/nitrogen/sulfur (0.2 g nominal)
  • Ergonomic, operator-centered design with boom-mounted touch-screen interface
  • Easy access to all reagent tubes and common maintenance areas for simplified maintenance
  • Extended reagent lifetimes contribute to a low cost-per-analysis
  • Horizontal furnace design with maximum temperatures up to 1450°C ensure complete oxidation of samples
  • Expanded furnace efficiency and reliability with a regent-free design

Applications

The 928 series is ideal for the following applications: Meats, Feeds, Forage, Pet Foods, Grains, Milled Products, Starch, Fermentation Products, Dairy and Cheese Products, Soils, Sediments, Fertilizers, Plant Tissue, Filtration Media, Waste Materials, Fiber and Textiles, Resins and Polymers, Paper Products, and Petroleum Products and Additives

GDS900 Glow Discharge Spectrometer

Glow Discharge Atomic Emission Spectrometer

Our GDS900 Glow Discharge Spectrometer (GDS) offers you state-of-the-art technology designed specifically for your routine elemental determination in most conductive solid matrices. User-friendly Cornerstone® brand software is brought to the platform for increased usability, simplified reporting, and streamlined analysis times—saving you time in your lab.

Features

  • The glow discharge source brings a number of advantages including:
    • Simple, linear calibrations when compared to other sources
    • Controlled excitation that occurs away from the sample surface
    • Reduced reference material consumption
  • Detection system ensures stability, flexibility, and performance
    • Full wavelength coverage from 160 nm to 460 nm
    • 50 pm (0.050 nm) resolution to differentiate even the most complex features of bulk spectra
  • Automatic cleaning between samples saves time, minimizes matrix effects for increased precision

Applications

The GDS900 is ideal for the following applications: steel, iron (including as-cast), aluminum, copper, zinc, nickel, cobalt, tungsten, and titanium materials.

GDS850 Glow Discharge Spectrometer

Glow Discharge Atomic Emission Spectrometer

Our Glow Discharge Atomic Emission Spectrometers provide accurate bulk analysis and quantitative depth profiling for a variety of metal materials. The GDS850 covers a wide spectral range from 120 to 800 nm and may be configured with up to 58 channels, so you'll have a customized solution for your lab.

Features

  • Uniform sputtering and the nonthermal sample process is well-suited for difficult applications
  • Separation of sputtering and excitation
  • Linear calibration curves with wide dynamic range
  • Minimized self-absorption and material re-deposition
  • Excitation of almost exclusively atom lines
  • Fewer and narrower emission lines reduce interference
  • Freedom from metallurgical history
  • Fewer standards required for calibration
  • Low argon gas consumption
  • Automatic cleaning between samples saves you time

Applications

The GDS850 is ideal for the following applications: steel, iron (including as-cast), aluminum, copper, zinc, nickel, cobalt, tungsten, and titanium materials.

844 Series Combustion

Carbon, Sulfur

Carbon and Sulfur Analysis by Combustion

Easily analyze your wide-range carbon and sulfur content with our CS844 for the determination of carbon and sulfur in primary steels, ores, finished metals, ceramics, and other inorganic materials using the combustion technique. State-of-the-art hardware and our exclusive Cornerstone® touch-screen software platform provide your laboratory with increased usability and a lower cost-per-analysis.

Features

  • Maximize laboratory productivity with automation
    • 10- and 60-position shuttle loaders or integrated robotic process loaders available.
    • High-efficiency autocleaner/vacuum system keeps maintenance to a minimum
    • Automatic combustion tube service and exchange system
  • Ergonomic, operator-centered design with a boom-mounted touch-screen interface
  • Improved IR cell design provides dual-range detection and improved lifetime and stability
  • High-efficiency furnace with low-maintenance design reduces the need for additional accelerant and cleaning

Applications

The 844 series is ideal for the following applications: primary steels, ores, finished metals, ceramics, alloys, and other inorganic materials.

836 Series Elemental Analyzer

Hydrogen, Nitrogen, Oxygen

Oxygen, Nitrogen, and Hydrogen Detection

The ONH836 Oxygen/Nitrogen/Hydrogen Elemental Analyzer is designed for wide-range measurement of oxygen, nitrogen, and hydrogen content of inorganic materials, ferrous and nonferrous alloys, and refractory materials using the inert gas fusion technique. Automation and our Cornerstone® brand touch-screen software come together to streamline your analysis, while a robust design ensures reliability.

Features

  • A robust sample loading area simplifies routine maintenance and minimizes atmospheric contamination
  • Triple IR cells for oxygen detection allows the widest detection range in the industry
  • Increase laboratory productivity with automation options
  • Available autocleaner minimizes the need for manual cleaning between analysis
  • 20-position shuttle loader for both crucibles and samples
  • Boom-mounted touch-screen interface provides improved ergonomics and intuitive operation
  • State-of-the-art infrared (IR) and thermal conductivity (TC) detectors, with no moving parts and no manual adjustments
  • Improved TC cell stability
  • Bypassable OMI-2 carrier gas scrubber for enhanced TC cell stability
  • Patented Dyanamic Flow Compensation further enhances TC cell stability

Optional O836Si Model

  • Unmatched low-level sensitivity with solid-state infrared detection, novel sample loading, and programmable impulse furnace
  • Ideal for oxygen detection in the silicon industry (silicon wafers), metals industry, and the electronics industry (high purity copper)

Applications

The 836 series is ideal for the following applications: inorganic materials, ferrous and nonferrous alloys, copper, aluminum, titanium, and refractory materials.

832 Series Combustion

Carbon, Sulfur

Sulfur and Carbon Analysis by Combustion

LECO’s 832 series will bring productivity, precision, and progress to your lab when determining the sulfur and carbon content in a wide variety of organic materials. Our Cornerstone® brand software platform powered by a touch-screen interface, increases usability and operational control without using valuable bench space. A high-efficiency combustion furnace, improved IR cell design, and a robust, rugged design make the 832 a valuable resource for any laboratory needing fast and accurate analysis.

Features

  • An optional autoloader will streamline your lab
  • 100-sample capacity autoloader with rugged design for improved reliability
  • Simplifies operator workflow and delivers repeatable rapid analysis cycle times
  • Improved IR cell for increased stability and precision
  • Individual wide-range IR detection for both carbon and sulfur
  • Improved IR cell temperature control, isolation, and circuitry
  • Optional dual-range (DR) detection for sulfur for the widest sulfur range capability
  • Easy to access maintenance areas
  • High-efficiency furnace system design with intelligent control can reach 1550ºC

Applications

The 832 series is ideal for the following applications: Coal and Coke, Combustion Residues, Biomass Materials, Catalyst Materials, Cement, Soil and Ore Materials, Ceramics, Glass, Gypsum and Building Materials, Hydrated Lime and Cement, Fertilizer, Feeds and Plant Tissue Materials, Rubber, Resins and Polymers, Graphite, and Petroleum Products and Additives

828 Series Macro Combustion

Carbon, Hydrogen, Nitrogen, Protein

Carbon, Hydrogen, Nitrogen, and Protein Determinator

By incorporating state-of-the-art hardware and an on-board, touch-screen software platform, the 828 Series allows you to easily handle a wide range of sample applications. The core capabilities and performance of previous generations of LECO macro combustion instruments have been maintained, while key improvements have been made in throughput, uptime, and reliability. All 828 Series models are compatible with the S832 add-on providing independent sulfur determination. Macro sample mass capability paired with cycle times as fast as 2.8 minutes make the 828 an ideal instrument for a diverse applications base, while delivering unparalleled sample analysis throughput.

Features

  • Maximize laboratory productivity with unmatched sample throughput
  • Rapid cycle time of 2.8 minutes for added productivity on FP/CN models
  • Extended reagent lifetimes optimize instrument up-time
  • Easy access to common maintenance areas reduces downtime and time required for routine maintenance.
  • Rugged 30-sample autoloader with optional expanded capacity for up to 120 samples maximizes lab efficiency.
  • Ergonomic, operator-centered design with boom-mounted touch-screen interface
  • Expanded furnace efficiency and reliability with a regent-free design

Applications

The 828 series is ideal for the following applications: Feeds, Pet Foods, Grains and Cereals, Milled Products, Fermentation Products, Dairy Whey and Cheese Products, Soils, Sediments, Fertilizers, Plant Tissue, Waste Materials, Resins and Polymers, Coal and Coke, Biomass Materials, and Petroleum Products and Additives.

744 Series Combustion

Carbon, Sulfur

Carbon and Sulfur by Combustion

Redefine the way you determine carbon and sulfur in metals, ores, and other inorganic materials with our 744 series. Using extensive customer feedback and innovative engineering, the 744 takes advantage of our immersive Cornerstone® brand software platform and a number of features, such as an improved IR cell design and available automation, come together to increase usability, lab productivity, and lower your cost-per-analysis.

Features

  • High-frequency furnace
  • Integrated oxygen lance floods crucible with high-purity oxygen to promote complete combustion
  • 18 MHz, 2.2 kW induction furnace for rapid and consistent combustion
  • Optional 10-and 60-sample autoloaders available for hours of worry-free operation
  • High-velocity vacuum system keeps dust and debris contained
  • Improved IR cell design
  • Temperature stabilized construction provides increased protection from ambient temperature fluctuations
  • Optimized emitter control and detection circuitry improves IR cell lifetime and long-term stability

736 Series Inert Gas Fusion

Nitrogen, Oxygen

Oxygen and Nitrogen by Inert Gas Fusion

Transform your Oxygen and Nitrogen determination in inorganic materials, ferrous and nonferrous alloys, and refractory materials with our ON736 elemental analyzer. It features an easy-to-use, touchscreen Cornerstone® software, a high-performance detector design, and a number of optional, customizable features to provide the optimal solution for your lab.

Features

  • High performance detector design
  • Thermostatic construction protects from ambient temperature fluctuations
  • Optimized emitter control and detection circuitry
  • Choice of either argon and helium carrier gas
  • Increase laboratory productivity with automation options
  • Available autocleaner minimizes the need for manual cleaning between analysis
  • 20-position shuttle loader for both crucibles and samples
  • Boom-mounted touch-screen interface provides improved ergonomics and intuitive operation
  • State-of-the-art infrared (IR) detection for oxygen determination and thermal conductivity (TC) detection of nitrogen

Applications

The 736 series is ideal for the following applications: inorganic materials, ferrous and nonferrous alloys, copper, aluminum, and refractory materials.

RC612 Multiphase Determinator

Carbon, Water

Carbon and Water Determination

Get fast, reliable carbon and water determination with our RC612. This state-of-the-art instrument quantifies the carbon and water present in various organic and inorganic samples, and identifies the source of several types of carbon content. The RC612 has a small footprint, along with easy-to-use operating software for streamlined analysis.

Features

  • Complies with AWS (ANSI) approved method for Determination of Moisture Content of Welding Fluxes and Welding Electrode Flux Coverings
  • Qualitative and quantitative analyses
  • Easy-to-install combustion tube
  • The large diameter reaction tube supports moisture analysis on a variety of sample types including powders, flat strips, or sections of tubes.
  • Surface, Free, Organic, Inorganic carbon type differentiation
  • Optional rugged 50-position autoloader for automated unattended operation
  • On-board diagnostics to minimize downtime

DH603 Hot Extraction

Hydrogen

Residual and Diffusible Hydrogen Determination by Hot Extraction

Your hydrogen determinations in ferrous alloys are delivered quickly and precisely with our DH603 which uses residual, diffusible, and total hydrogen measurements. A small footprint, user-friendly operating software, increased instrument safety, and reliability are all part of the advanced DH603 design to truly streamline your hydrogen determination.

Features

  • Exclusive ECLIPSE architecture—a unique design by LECO that improves reliability and serviceability
  • A variety of evacuated pin tubes and diffusible samplers for quick and easy hydrogen determination of molten metals
  • Improved plumbing offers faster maintenance of flow path
  • Easily accessible components to the operator thanks to ergonomic shells
  • The state-of-the-art furnace control system allows for temperature ramping from ambient to 1100°C
  • Optional diffusible sampler piercer—you have the choice of diffusible, residual/total hydrogen determination
  • Gas dose calibration allows for calibration without reference materials

RHEN602 Inert Gas Fusion

Hydrogen

Hydrogen Determination by Inert Gas Fusion

Determine the hydrogen content (at low levels <2 ppm) in your aluminum, other metals, refractories, and inorganic materials with our RHEN602. Multiple method selections assure optimal furnace and analysis settings for each sample matrix. Onboard diagnostics minimize your downtime and keep your lab running smoothly. 

Features

  • Improved furnace operating parameters optimize sample size, accuracy, and precision
  • Advanced electrode furnace operating system for more detailed temperature profiles, programmable ramping, and complete control of set points
  • Up to 6 g nominal sample weight offering improves precision
  • Improved sensitivity to 0.05 ppm at 1 g sample mass
  • Calibration by gas dose or standards
  • Pre-defined application techniques
  • State-of-the-art solid-state thermal conductivity (TC) technology
  • Easy-to-use Windows®–based operating system maximizes flexibility for production and research applications
  • SmartLine® Remote Diagnostics [PDF] allows LECO service to connect directly to your instrument for quicker solutions and maximized up-time
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LECO CorporationSince the introduction of the first rapid carbon determinator in 1936, industries around the world have trusted LECO Corporation to deliver technologically advanced products and solutions for organic and inorganic analysis. Today LECO is recognized globally as a leader in the development of high-quality analytical instrumentation, next generation mass spectrometers and chromatographs, metallography equipment, and consumables. 
[Leco, Carbon, Hydrogen, Nitrogen, Protein, Sulfur, Organic elemental analysis]