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.
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.
FP828 Nitrogen/Protein
FP828P Nitrogen/Protein Performance Package
Boom-Mounted Touch-Screen Monitor
Performance Package
Macro Digital Microscope
The MSX305R Series is designed for sectioning large samples of many different types of materials. A manually adjustable Y-axis table provides easy sample position and parallel sectioning. Models support up to 14 in (350 mm) blades, and feature a powerful 10.05 HP (7.5 kW) motor and solid-steel construction.
The AC500 determines calorific value, a key indicator of quality and value in solid and liquid fuels, through measurement of the heat released after combustion of a sample. This stand-alone benchtop unit uses a fully-integrated circulation system for a compact footprint—no additional heaters or coolers required. An integral water-measuring station simplifies sample preparation, and the operating system uses an electronic thermometer accurate to 0.0001°C to measure temperature every six seconds. Two-channel correction is possible through constant temperature monitoring in both the outer jacket and the calorimeter proper.
AC500 with no Vessel
AC500 with Wire Igniter Vessel
AC500 with String Igniter Vessel
Wire Igniter Vessel
String Igniter Vessel
Ideal for the measurement of calorific content in solid and liquid fuels, LECO’s AC600 semi-automatic isoperibol calorimeter sets the standard for future calorimetry instruments. Its semi-automated operation, combined with the use of thermodynamic TruSpeed®, obtains a rapid analysis of calorific content and increased instrument throughput without sacrificing accuracy or instrument precision. A new, ergonomically-designed, lightweight combustion vessel assures ease of operation while greatly reducing operator strain.
The LECO AC600 semi-automatic calorimeter was developed to measure the calorific content of various organic materials such as coal, coke, and fuel oil.
The calorific value of a sample is determined by precisely measuring the heat released after combustion of the sample in a controlled environment. The heat released is proportional to the calorific value of the substance.
The sample is placed into a combustion vessel, which is pressurized with oxygen. The combustion vessel is automatically lowered into a water bath within the instrument known as a bucket. The bucket is sealed using an inflatable bladder. The cavity surrounding the bucket is known as the jacket and is also filled with water. The water temperature in the jacket is closely controlled at a precise set temperature (isoperibol calorimeter system). The sample is ignited and the temperature of the bucket and jacket water is measured by an electrical thermometer with a resolution of 0.0001 of a degree. A measurement of the water temperature inside the bucket and jacket is collected every second. The results can be corrected within the software for any spiking, nitrogen, sulfur, moisture, and ash content if necessary. Two options for analyzing data are available. A simple temperature difference may be chosen by the user (Delta T mode), in which calorific values are determined by a simple maximum temperature rise of the bucket. The user may also choose to use a thermodynamic model (TruSpeed mode) that has been developed by LECO to model heat exchange within the AC600 system. The TruSpeed mode takes into account heat capacities of the system's components along with corrections for energy transfer within the system. The TruSpeed mode enables the AC600 to attain rapid 5 minute analysis times without compromising the accuracy or precision of the calorific result.
AC600 with standard vessel
AC600 with halogen-resistant vessel
Dual AC600 with standard vessels
Standard vessel for wire or thread ignition
Halogen-resistant vessel for wire or thread ignition
The TGM800 provides a high precision, automated solution for moisture determination by replacing the slow, laborous, traditional loss-on-drying technique with an automated primary method. A number of time-saving features have been incorporated into this design, such as the ability to automatically measure up to 16 samples at a time with optional drying time end point recognition, and intuitive touch-screen software with flexible method settings. The TGM800 is applicable to a wide variety of sample matrices including food, feeds, milled products, and agricultural materials, making it a versatile solution for many laboratories.
The TGM800 is a thermogravimetric analyzer designed to directly determine moisture content of materials using a loss-on-drying technique. Mass loss of the sample is measured as a function of the oven temperature while controlling the atmosphere and ventilation rate. The instrument consists of a computer, an integrated four place balance, and a multiple sample oven that allows up to 16 samples to be analyzed simultaneously.
After an analysis method has been selected, empty aluminum foil crucibles are loaded into the oven carousel. The analysis method controls the carousel, oven, atmosphere ventilation, and balance operation. On completion of crucible tare, each crucible is presented to the operator for sample loading. The initial sample mass is measured and stored automatically. Once all the samples have been loaded, the analysis starts with the oven temperature ramping to the set point, the beginning of ventilation, and the sequential collection of the individual sample masses. Crucibles are automatically indexed to the position above and lowered onto the balance pedestal where the sample mass is recorded. The mass loss of each sample is monitored, and the oven temperature and atmosphere ventilation rate is controlled according to the selected analysis method. Method analysis length can be programed to a fixed time or be dependent on the sample mass constancy. The moisture result is calculated as a percent mass loss for each sample and reported at the end of the analysis.
The instrument contains an intuitive touchscreen interface that enables complete access to analysis control, method settings, diagnostics, sample reporting, and more in a highly organized and immersive environment. Analysis methods can be tailored to satisfy most moisture applications with editable oven temperature, temperature ramp rate, atmosphere, and ventilation rate. The software also provides on-screen plotting of sample mass loss and temperature, as well as storing and managing all of the data and quantitative calculations.
The TGM800 maximizes lab efficiency, productivity, and analytical performance with a sample batch capacity up to 16 samples with sequential sample mass measurements occurring throughout the analysis process.
TGM800 Thermogravimetric Moisture
The TGA801 maintains the core capabilities and reliability of previous generations of LECO macro TGA instruments, while providing key improvements in performance and robustness. State-of-the-art hardware combined with a touch-screen software platform and rugged design provides accurate, high-precision thermogravimetric constituent analysis—moisture, ash, volatile content, and LOI in various organic, inorganic, and synthetic materials. Complying with ASTM standardized methods, the TGA801 is applicable to many industries and applications including coal, cement, catalyst, foods, and feeds.
Macro thermogravimetric analysis (nominal 1 g) replaces the often slow, labor-intensive, traditional manual gravimetric techniques that require multiple sample weighing and transfer steps involving ovens, muffle furnaces, and desiccator equipment. Flexible method settings, automation, and hardware capabilities deliver an automated analysis process while requiring only the manual measurement of the initial sample mass, for maximum productivity in your lab.
Cornerstone Mobile remote software keeps the user updated from their smartphone, tablet, or PC on the instrument's analysis batch progress, performance, and status while away from the instrument.
The TGA801 is ideal for the following applications: Coal and Coke, Combustion Residues, Biomass Materials, Catalyst Materials, Soil and Ore Materials, Ceramics, Gypsum and Building Materials, Hydrated Lime and Cement, Flour and Milled Products, Feed Materials, and Resins and Polymers
The TGA801 Thermogravimetric Analyzer determines weight loss, including moisture, ash, volatile content, and Loss-on-Ignition (LOI), in various organic, inorganic, and synthetic materials. Weight change is measured as a function of temperature as samples are exposed to a temperature program in an atmosphere-controlled environment. The multi-sample furnace design allows for simultaneous analysis of up to 19 samples.
Analysis begins when samples have been logged in and empty crucibles have been loaded into the sample carousel. After empty crucible weights have been automatically recorded, the user is prompted to load samples. Once loaded, sample weights are recorded and the method-specified furnace-temperature program begins. One of three analytical gases (air, N2, or O2) are used to control the atmosphere inside the furnace during the course of an analysis. Temperature, temperature ramp rate, atmosphere, and duration (fixed time or mass constancy) are selectable for each method step. Moisture, volatile, and ash steps are most commonly utilized and are available as preset method steps.
The mass change of each sample is sequentially monitored throughout an analysis. Crucibles are automatically indexed to the position above (and lowered onto) the balance pedestal where sample weights are recorded. Percent mass change is typically reported at the end of each step; although alternative and additional calculations can be specified by the user in the method.
An external PC with LECO Cornerstone® brand software manages all of the quantitative calculations and saves all of the data.
TGA801 Thermogravimetric Analyzer
TGA801 Dual Furnace Package
Desktop Touch-Screen Monitor (M)
Developed exclusively by LECO, ChromaTOF is uniquely designed to meet the needs of today’s laboratory professionals by processing and analyzing the large amounts of data that are acquired with our time-of-flight instruments. ChromaTOF offers seamless control of both the instrument and its accessories, as well as an intuitive interface with highly integrated data processing. ChromaTOF is the first mass spectrometry data system to fully accommodate multidimensional chromatographic data (GC×GC).
What Makes ChromaTOF Unique?
ChromaTOF Version 5.0 encapsulates the industry’s most advanced qualitative and quantitative capabilities in one user-friendly data-handling system. Supports both Pegasus BT and Pegasus GC-HRT+ instrument platforms.
Features
Features Exclusively for Pegasus GC-HRT+
Pegasus BT Features
Pegasus Instrument Model | Latest ChromaTOF Version |
Major Features |
GC-HRT |
5.10 | Addition of the L-PAL3 and Spectral Analysis Tools |
GC-HRT |
5.10 | Addition of the L-PAL3 and Spectral Analysis Tools |
GCxGC FID 4D, HT (incl “C”) TruTOF |
4.72 | Fixes |
BT BT 4D |
5.32.09 |
Added nominal mass data export |
GC-HRT+ |
5.32.12 |
Identification Grading System and |
Used by industry leaders for over 15 years, ChromaTOF-GC supports GC×GC deconvolution, visualization, and reporting.
Simply GC×GC from LECO is a free tool designed to walk you through the steps of creating an optimized GC×GC method for your complex samples. Create a GC×GC method from scratch, or convert an existing 1D method to GC×GC. The tool will provide logical, step-by-step instructions to determine the secondary oven offset, second dimension column length, and experimentally evaluate stationary phases and peak capacity. Simply GC×GC takes a simple approach to GC×GC, helping you avoid unnecessary testing and streamline your method development cycle.
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Available exclusively from LECO, our L-PAL3 autosampler offers increased vial capacity, discrimination-free GC injections (ultrafast injections), an automatic tool exchange to switch between injector types (liquid, headspace, or SPME), minimized carryover, and the sensing of vial bottoms to avoid mis-injections. All of these advantages come on a highly robust and integrated platform. The LECO L-PAL3 GC autosampler allows you to safely focus on identifying unknowns in your samples without experiencing downtime and uncertainty in your lab.
This CTC-based robot combines an autosampler and injector that operates in three dimensions of space, providing everything needed to perform standard liquid injections. This package includes a 5-position solvent wash station, tool for liquid syringe injections, mounting kit for 7890B GC, and a single tray holder with three trays (54-positions each) for 2 mL vials. This is a non-upgradable system.
This CTC-based robot combines an autosampler and injector that operates in three dimensions of space. It provides everything needed to perform standard liquid injections and static headspace injections. This package includes a heated agitator, 5-position solvent wash station, tool for liquid syringe injections, heated tool for headspace syringe, mounting kit for 7890B GC, and two tray holders; one with three trays (54-positions each) for two mL vials, and the second with three trays (15-positions each) for 10/20 mL vials. This configuration requires a manual exchange of tools between headspace and liquid injections.
This CTC-based robot combines an autosampler and injector that operates in three dimensions of space. It provides everything needed to perform standard liquid injections and all SPME-type analyses (immersion, headspace). This package includes a heated agitator, 5-position solvent wash station, tools for liquid syringe and SPME fibers, SPME fiber conditioning station, mounting kit for 7890B GC, and two tray holders; one with three trays (54-positions each) for two ml vials, and the second with three trays (15-positions each) for 10/20 mL vials. This configuration requires a manual exchange of tools between SPME and liquid injections.
This CTC-based robot combines an autosampler and injector that operates in 3 dimensions of space. It provides everything needed to perform standard liquid, headspace, and SPME injections. This model allows for automatic switching of injection types, so method development can be automated. This package includes a heated agitator, 5-position solvent wash station, tools for headspace, liquid syringe and SPME fibers, and SPME fiber conditioning station, mounting kit for 7890B GC, and two tray holders; one with three trays (54-positions each) for two mL vials, and the second with three trays (15-positions each) for 10/20 mL vials.
L-PAL3 GC for Liquid Injections
L-PAL3 GC for Liquid and Headspace Injections
L-PAL3 GC for Liquid and SPME Injections