FP-CNSort

FP-CNSort (2)

828 Series Macro Combustion | Carbon, Hydrogen, Nitrogen, and Protein Determinator | LECO

828 Series Macro Combustion
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 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.

  • 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.

The 828 Series determines nitrogen/protein, carbon/nitrogen and carbon/hydrogen/nitrogen in a multitude of organic matrices from food/feeds and soils to fuels. The system utilizes a combustion technique with a vertical quartz furnace designed to handle diverse sample matrices with rapid cycle times and extended reagent lifetimes, delivering unsurpassed throughput coupled with superior instrument uptime. To begin an analysis, the sample is weighed into a tin capsule or encapsulated within tin foil and placed into the loader. A fully automated analysis sequence transfers the sample to a sealed purge chamber, where atmospheric gas is removed. The purged sample is transferred automatically into a reticulated ceramic crucible within the furnace. To ensure complete and rapid combustion (oxidation) of the sample, the furnace environment is composed of pure oxygen with a secondary oxygen flow being directed to the sample within a reticulated crucible via a quartz lance. In the FP and CN828 models, the combustion gases are swept from the furnace through a thermoelectric cooler to remove moisture and are collected in a ballast volume. In the CHN828 model, combustion gases are swept from the furnace through an afterburner containing reagent to scrub sulfur compounds from the gas stream prior to collection in the ballast volume. The gases equilibrate and mix within the ballast before a representative aliquot of the gas is extracted and introduced into a flowing stream of inert gas for analysis. Depending upon the analyzer model, the aliquot gas is carried to a non-dispersive infrared (NDIR) cell for the detection of carbon (as carbon dioxide) and a thermal conductivity cell (TC) to detect nitrogen (N2). In the CHN828 model, the ballast gas is also transferred to a H2O NDIR cell for the determination of hydrogen. Unlike NDIR cells, TC cells are chemically non-specific, so a series of reagents and scrubbers are used to ensure quantitative detection of N2 without chemical interference. A heated reduction tube, filled with copper, is used to convert nitrogen oxide species (NOx) to N2 and remove excess oxygen. Carbon dioxide (CO2) is removed by LECOSORB and water vapor (H2O) is removed by Anhydrone.

Careful sequencing of the analysis provides maximum sample throughput by interleaving the sample loading sequence with quantitation of the aliquot gases from the previous sample.

Many diagnostic sensing capabilities are included in the 828 Series analyzer. Multiple Pressure Transducers (PT) have been included to provide the ability to leak check individual segments of the flow path.

 

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828 Series Details

Carbon/Hydrogen/Nitrogen/Protein Determinator 828 Series

  • Models
    1. FP828 Nitrogen/Protein

    1. FP828P Nitrogen/Protein Performance Package

    1. CN828 Carbon/Nitrogen
    1. CHN828 Carbon/Hydrogen/Nitrogen

928 Series Macro Determinator | Carbon/Nitrogen/Sulfur, and Nitrogen/Protein Analysis by Combustion | LECO

928 Series Macro Determinator
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.

  • Maximize laboratory productivity with unmatched sample throughput
    • Rapid cycle time of 5 minutes
    • 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)
    • Optional 100-sample position autoloader for sequential and non-sequential analysis
  • 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 1450oC 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

The 928 series determines nitrogen/protein, carbon/nitrogen, or carbon/nitrogen/sulfur in a multitude of organic matrices from foods and feeds, to soils and fertilizers. The system utilizes a high temperature horizontal ceramic combustion furnace designed to handle macro sample mass with a rapid analysis time delivering unsurpassed application capabilities and throughput.

To start an analysis, a macro-sized sample is weighed into a ceramic boat and placed in the 100-position loader. A fully automated analysis sequence transfers the sample to a sealed purge chamber, where entrained atmospheric gas is removed. The purged sample is transferred automatically to the furnace, which can be operated at temperatures from 1100 °C to 1450 °C. To ensure complete and rapid combustion (oxidation) of the sample, the furnace environment is composed of pure oxygen with a secondary oxygen flow directed to the sample via a ceramic lance. The combustion gases are swept from the furnace through a thermoelectric cooler (nitrogen/protein and carbon/nitrogen models), or an anhydrone reagent (carbon/nitrogen/sulfur model), to remove moisture, and collected in a thermostatically controlled ballast volume. The gases equilibrate and mix in the ballast before a representative aliquot of the gas is extracted and introduced into a flowing stream of inert gas for analysis. Depending upon the analyzer model, the aliquot gas is carried to a non-dispersive infrared (NDIR) cell for the detection of carbon (as carbon dioxide) and sulfur (as sulfur dioxide), and a thermal conductivity cell (TC) to detect nitrogen (N2). Unlike NDIR cells, TC cells are chemically non-specific, so a series of reagents and scrubbers are used to ensure quantitative detection of N2 without chemical interference. A heated reduction tube, filled with copper, is used to convert nitrogen oxide species (NOx) to N2 and to remove excess oxygen. Carbon dioxide (CO2) is removed by LECOSORB and water (H2O) is removed by Anhydrone.

Careful sequencing of the analysis by the Cornerstone® brand software provides maximum sample throughput by interleaving the sample loading sequence with quantitation of the aliquot gases from the previous sample. As soon as the combustion gas is collected in the ballast, and the analysis sequence is initiated for the next sample.

The determined composition of the sample is displayed by Cornerstone in weight percent or parts-per-million but can be displayed in other custom units if preferred.

Many diagnostic sensing capabilities are included in the 928 Series analyzer. Multiple Pressure Transducers (PT) to ensure the presence of sufficient oxygen and helium, and provide the ability to leak check individual segments of the flow path. Digital Mass Flow Controllers (MFC's) are used to control and measure critical flows of oxygen and helium. Thermal sensors and heaters are used to thermostatically control the temperature of critical components such as the furnace, the ballast, the dose loop, the helium MFC, the NDIR cell, and the TC cell.

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928 Series Details

Carbon/Nitrogen/Sulfur and Nitrogen/Protein Analysis by Combustion with the 928 Series Macro Determinator

  • Models
    1. FP928 Nitrogen/Protein

    1. CN928 Carbon/Nitrogen

    1. CNS928 Carbon/Nitrogen/Sulfur