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Afficher les éléments par tag : Matrices Organiques
Soil is the material where corn grows. This sounds to be a simple sentence, but keep in mind, that a big part our food is directly or indirectly coming from plants that are sown, grown and harvested in agricultural soil. For modern agriculture especially when including environmental concerns, the chemical analysis delivers very important parameters for a complete characterisation of soil. LECO is the specialist for CNS and moisture/ash analysis in soil, as well as for Carbon species analysis like TOC/TIC or according to EN 17505 TOC400, ROC, ROC900 and TIC 900.
Your TOC analysis has never been easier with LECO’s solutions
Carbon is an essential building block of life on our planet. The amount of Carbon present is an important factor in soils and agriculture samples.
The determination of TOC in solids has recently become ever more important, not just for evaluating wastes but TOC content measurements are also an important aspect of assessing soils.
The Carbon present in soil organic matter is referred to as organic Carbon. Soil organic Carbon is a vital component of productive agriculture. In addition sequestration of Carbon in agricultural soils has been recognised as a tool to mitigate climate change.
LECO provides innovative and timesaving analytical instrumentation for the analysis of organic Carbon content.
Specific Advantages Including
- Market leading analytical performance
- Simplified sample preparation
- Robust & reliable instrumentation
- Unsurpassed instrument flexibility
- Adhering to all the current standards, such as ISO 10694, BS EN 17505 and EN 15936
Instrument Portfolio for TOC Analysis
CS744 // Carbon analysis by combustion
Redefine the way you determine carbon in soils and plant tissues 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.
RC612 // Multi-Phase Carbon And Water Determination
Get fast, reliable carbon and water determination with our RC612. The RC612 is a resistance furnace multiphase carbon and moisture determinator which quantifies the carbon and moisture present in soils and plant tissues and illustrates the source of several types of carbon.
The RC612 features a state-of-the-art furnace control system, which allows the temperature of the furnace to be stepped and ramped from near ambient to 1,100 °C, in either oxidative or reductive carrier gas. The RC612 utilizes an afterburner furnace that ensures complete combustion of volatile species released at lower primary furnace temperatures.
SC832 // Sulfur And Carbon Analysis
LECO’s 832 series of Elemental Determinators are specifically designed to perform carbon and sulfur analysis of soil, plant tissue and other organic and some inorganic materials. The 832 series is a valuable resource for any laboratory needing fast and accurate analysis.
Request SC832
Methods of TOC analysis include
1. Acid Digestion Method
The most common method for determining TOC is the acid digestion method. By acid treating a sample, usually with hydrochloric acid, which is strong enough to react with inorganic carbonates but does not react much with organic Carbon, the inorganic carbonate species within the sample will effervesce as Carbon dioxide. The acid-treated sample and a non-acid-treated sample can both be analyzed using either the LECO C744 series or LECO C832 series for Carbon content. The untreated sample would indicate the total carbon content, while the acid-treated sample’s Carbon content would be the remaining organic Carbon content. The difference between the two samples would be the total inorganic Carbon (TIC) content.
2. Temperature Dependent Method
Another Carbon determination method is temperature dependent. With the temperature dependent method, samples do not need to be pretreated. Organic Carbon combusts to CO2 between 150 °C and 450 °C, while inorganic species combust below 1,000 °C. The RC612 resistance furnace multiphase Carbon and moisture determinator performs this analysis by using a two-step temperature ramping at 450 °C and 1,000 °C without any acid pretreatment of the samples. The CO2 gases are swept through to an NDIR at 450 °C and again at 1,000 °C to determine the TOC and TIC in the sample.
For a more comprehensive exploration of these two methods, as well as an in-depth comparison of LECO instrumentation, please contact us:
On-demand Presentation // Watch the recorded Webinar
Détermination du carbone organique total (COT) dans le sol à l'aide d'un traitement à l'acide et d'une différenciation de la température
Presented by Jeffery Gast
The presentation will outline TOC determination in soil using two different approaches. First, we will explore the use of acid treatment of the soil to remove carbonates followed by analysis using conventional combustion techniques. Next, we will explore using a ramped furnace temperature approach to differentiate organic and inorganic carbon species. TOC results from both approaches will be presented.
Publication Library
Dive deeper into TOC analysis
Enhance your knowledge with our selection of publications. Discover techniques, comparisons, and applications in our downloadable resources, gaining valuable insights and enriching your understanding of Total Organic Carbon (TOC) analysis.
Click to download app note
- "Temperature-Dependent Determination of Total Organic Carbon (TOC) in Soil, Rock, and Shale" using RC612
- "Determination of Total Organic Carbon in Soil, Rock, and Shale by Acid Digestion and Combustion" using 832 Series
Click to download poster
If you want to learn more about our products and solutions for TOC analysis, book a free ticket to our Virtual Trade Show, or schedule an online demo for a deeper insight in our instruments.
Your TOC analysis has never been easier with LECO’s solutions
Carbon is an essential building block of life on our planet. The amount of Carbon present is an important factor in soils and agriculture samples.
The determination of TOC in solids has recently become ever more important, not just for evaluating wastes but TOC content measurements are also an important aspect of assessing soils.
The Carbon present in soil organic matter is referred to as organic Carbon. Soil organic Carbon is a vital component of productive agriculture. In addition sequestration of Carbon in agricultural soils has been recognised as a tool to mitigate climate change.
LECO provides innovative and timesaving analytical instrumentation for the analysis of organic Carbon content.
Specific Advantages Including
- Market leading analytical performance
- Simplified sample preparation
- Robust & reliable instrumentation
- Unsurpassed instrument flexibility
- Adhering to all the current standards, such as ISO 10694, BS EN 17505 and EN 15936
Instrument Portfolio for TOC Analysis
CS744 // Carbon analysis by combustion
Redefine the way you determine carbon in soils and plant tissues 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.
RC612 // Multi-Phase Carbon And Water Determination
Get fast, reliable carbon and water determination with our RC612. The RC612 is a resistance furnace multiphase carbon and moisture determinator which quantifies the carbon and moisture present in soils and plant tissues and illustrates the source of several types of carbon.
The RC612 features a state-of-the-art furnace control system, which allows the temperature of the furnace to be stepped and ramped from near ambient to 1,100 °C, in either oxidative or reductive carrier gas. The RC612 utilizes an afterburner furnace that ensures complete combustion of volatile species released at lower primary furnace temperatures.
SC832 // Sulfur And Carbon Analysis
LECO’s 832 series of Elemental Determinators are specifically designed to perform carbon and sulfur analysis of soil, plant tissue and other organic and some inorganic materials. The 832 series is a valuable resource for any laboratory needing fast and accurate analysis.
Request SC832
Methods of TOC analysis include
1. Acid Digestion Method
The most common method for determining TOC is the acid digestion method. By acid treating a sample, usually with hydrochloric acid, which is strong enough to react with inorganic carbonates but does not react much with organic Carbon, the inorganic carbonate species within the sample will effervesce as Carbon dioxide. The acid-treated sample and a non-acid-treated sample can both be analyzed using either the LECO C744 series or LECO C832 series for Carbon content. The untreated sample would indicate the total carbon content, while the acid-treated sample’s Carbon content would be the remaining organic Carbon content. The difference between the two samples would be the total inorganic Carbon (TIC) content.
2. Temperature Dependent Method
Another Carbon determination method is temperature dependent. With the temperature dependent method, samples do not need to be pretreated. Organic Carbon combusts to CO2 between 150 °C and 450 °C, while inorganic species combust below 1,000 °C. The RC612 resistance furnace multiphase Carbon and moisture determinator performs this analysis by using a two-step temperature ramping at 450 °C and 1,000 °C without any acid pretreatment of the samples. The CO2 gases are swept through to an NDIR at 450 °C and again at 1,000 °C to determine the TOC and TIC in the sample.
For a more comprehensive exploration of these two methods, as well as an in-depth comparison of LECO instrumentation, please contact us:
On-demand Presentation // Watch the recorded Webinar
Détermination du carbone organique total (COT) dans le sol à l'aide d'un traitement à l'acide et d'une différenciation de la température
Presented by Jeffery Gast
The presentation will outline TOC determination in soil using two different approaches. First, we will explore the use of acid treatment of the soil to remove carbonates followed by analysis using conventional combustion techniques. Next, we will explore using a ramped furnace temperature approach to differentiate organic and inorganic carbon species. TOC results from both approaches will be presented.
Publication Library
Dive deeper into TOC analysis
Enhance your knowledge with our selection of publications. Discover techniques, comparisons, and applications in our downloadable resources, enriching your understanding of Total Organic Carbon (TOC) analysis. Gain valuable insights by filling out our form to access the download files.
Download App Note
- "Temperature-Dependent Determination of Total Organic Carbon (TOC) in Soil, Rock, and Shale" using RC612
- "Determination of Total Organic Carbon in Soil, Rock, and Shale by Acid Digestion and Combustion" using 832 Series
Download Poster
If you want to learn more about our products and solutions for TOC analysis, book a free ticket to our Virtual Trade Show, or schedule an online demo for a deeper insight in our instruments.
LECO Solutions For Moisture/Ash Analysis
Automated moisture or moisture/ash determination with a primary loss on drying method for replacing the slow labor intensive, manual air oven method is ideal for most applications in the foods, feeds, and milling products industry. LECO‘s cutting-edge thermal gravimetric analysers, TGM800 and TGA801, are industry leaders in every field and run simultaneously for 10 up to 38 samples! La flexibilité dans le choix des paramètres d'une méthode, l’automatisation et les capacités du logiciel permettent d'automatiser le processus d’analyse. Seule la pesée initial de l'échantillon reste manuelle, pour assurer une productivité maximale dans votre laboratoire.
Specific Advantages Including
- Amélioration de l’efficacité du flux de travail
- Temps d’opérateur minimal
- Maximized sample batch throughput
- Reconnaissance automatisée du point final basée sur la constance de la masse de l’échantillon
- Temps d’analyse optimal
- Stable and precise mass measurements
Instrument Portfolio Thermogravimetric Moisture Determinator
Les instruments LECO offre la qualité et la conformité des entreprises d'énergie pour les analyses d’humidité, cendres, teneur en matières volatiles et perte au feu, ainsi que pour la détermination de la valeur calorifique brute de divers combustibles organiques.
Sample running with LECO TGA801 & TGM800
Simple entering of your samples into macro crucibles, easy and convenient, no need for touching the sample after starting the instrument.
Moisture / Ash Determination App Notes Library
Learn more about our solutions for thermogravimetric moisture / ash analysis and read our Application Notes. In the following, you are going to find a content compendium according to moisture / ash determintation.
TGM800 Application Notes
Moisture / Ash Determination Scientific Poster
« Détermination de l’humidité et des solides totaux dans les produits à base de lait en comparant les techniques thermogravimétriques automatisées et les techniques de perte sur séchage au four à air. »
par Mason Marsh, Jenifer Laurin, Jeffery Gast (LECO Corporation, St. Joseph, MI, États-Unis)
Please click here to view the poster.
« Détermination directe de l’humidité de divers produits céréaliers, grains/semences en comparant la méthode thermogravimétrique automatisée et les méthodes de séchage au four utilisées par le Southern African Grain Laboratory »
par Jason van Rooyen (LECO Africa), Marie Bothma (Southern African Grain Laborator) et Marlize Hammes (Southern African Grain Laborator)
Please click here to view the poster.
« Détermination de l’humidité/perte lors du séchage de cannabis par diverses techniques analytiques »
par Jeffery Gast, Adam Darling, Lloyd Allen (LECO Corporation, St. Joseph, MI, États-Unis)
Please click here to view the poster.
"Moisture Determination of Meat Comparing Automated Thermogravimetric and Air Oven Loss-on-Drying Techniques"
by Jenifer Laurin, Gabriela Schmidt (LECO Corporation, St. Joseph, MI USA), Michael Jakob, Lloyd Allen (LECO EATC, Berlin, Germany)
Please click here to view the poster.
Let LECO help you find the right instruments for your needs.
Si vous souhaitez en savoir plus sur nos produits et solutions pour l’analyse de l’humidité, réservez un billet gratuit pour notre salon virtuel ou programmez une démo en ligne pour un aperçu plus approfondi de nos instruments.
L'analyse des produits laitiers est une partie importante du portefeuille de produits LECO pour l'analyse alimentaire. Les systèmes LECO contrôlent la qualité, la sécurité alimentaire et les valeurs nutritionnelles du lait et des produits laitiers. Détermination de l'humidité/des cendres/des protéines, précise, rapide, exacte dans les matrices liquides et solides. Lait cru, crème, caillé, lait en poudre ou fromage : pas de traitement spécial de l'échantillon avec de faibles coûts d'analyse.
Apprenez-en plus sur nos solutions d’analyse alimentaire et lisez nos différentes publications…
Mit 85 Jahren Erfahrung in der Labortechnik wissen wir inzwischen ziemlich gut, dass es nicht nur darauf ankommt, hochwertige, spezialisierte Technik anzubieten, sondern ebenso zuverlässige Lösungen, wenn es um individuelle Anforderungen wie Service, Wartung, Support und Know-How geht.
Lernen Sie unseren professionellen LECO Kundenservice kennen! Wir bieten Ihnen ein breites Leistungsportfolio und helfen Ihnen dabei, die Produktivität und Effizienz Ihres Labors zu steigern.
Überzeugen Sie sich selbst - was können wir für Sie tun?
La méthode Dumas présente de nombreux avantages sur la méthode Kjeldahl : elle est bien plus rapide, présente des coûts par analyses nettement inférieurs, ne présente pas de risque de sécurité et ne produit pas de déchets toxiques. Toutefois, il existe un débat sur laquelle des deux principales approches à la méthode Dumas est la meilleure : l'utilisation d'un four vertical ou horizontal. Déterminé à apporter une réponse définitive à la question : laquelle des deux méthodes dispose de la meilleure précision et apporte le plus d'avantages; LECO a analysé de nombreux types d'échantillons à la fois avec l'analyseur FP828et le FP928
Pour plus d'informations et visualiser les résultats détaillés des analyses, lisez l'article de Michael Jakob dans le magazine de septembre 2021 de eFOOD-Lab International
LECO Solutions For Moisture/Ash Analysis
Automated moisture or moisture/ash determination with a primary loss on drying method for replacing the slow labor intensive, manual air oven method is ideal for most applications in the foods, feeds, and milling products industry. LECO‘s cutting-edge thermal gravimetric analysers, TGM800 and TGA801, are industry leaders in every field and run simultaneously for 10 up to 38 samples! La flexibilité dans le choix des paramètres d'une méthode, l’automatisation et les capacités du logiciel permettent d'automatiser le processus d’analyse. Seule la pesée initial de l'échantillon reste manuelle, pour assurer une productivité maximale dans votre laboratoire.
Specific Advantages Including
- Amélioration de l’efficacité du flux de travail
- Temps d’opérateur minimal
- Maximized sample batch throughput
- Reconnaissance automatisée du point final basée sur la constance de la masse de l’échantillon
- Temps d’analyse optimal
- Stable and precise mass measurements
Instrument Portfolio Thermogravimetric Moisture Determinator
Les instruments LECO offre la qualité et la conformité des entreprises d'énergie pour les analyses d’humidité, cendres, teneur en matières volatiles et perte au feu, ainsi que pour la détermination de la valeur calorifique brute de divers combustibles organiques.
Sample running with LECO TGA801 & TGM800
Simple entering of your samples into macro crucibles, easy and convenient, no need for touching the sample after starting the instrument.
Moisture / Ash Determination App Notes Library
Learn more about our solutions for thermogravimetric moisture / ash analysis and read our Application Notes. In the following, you are going to find a content compendium according to moisture / ash determintation. We kindly ask you to submit our form. Afterwards you‘ll get access to all the files.
TGM800 Application Notes
Please complete the form to get access to all App Notes.
TGA801 Application Notes
Please complete the form to get access to all App Notes.
Moisture / Ash Determination Scientific Poster
« Détermination de l’humidité et des solides totaux dans les produits à base de lait en comparant les techniques thermogravimétriques automatisées et les techniques de perte sur séchage au four à air. »
par Mason Marsh, Jenifer Laurin, Jeffery Gast (LECO Corporation, St. Joseph, MI, États-Unis)
Please complete the form to get access to all posters.
« Détermination directe de l’humidité de divers produits céréaliers, grains/semences en comparant la méthode thermogravimétrique automatisée et les méthodes de séchage au four utilisées par le Southern African Grain Laboratory »
par Jason van Rooyen (LECO Africa), Marie Bothma (Southern African Grain Laborator) et Marlize Hammes (Southern African Grain Laborator)
Please complete the form to get access to all posters.
« Détermination de l’humidité/perte lors du séchage de cannabis par diverses techniques analytiques »
par Jeffery Gast, Adam Darling, Lloyd Allen (LECO Corporation, St. Joseph, MI, États-Unis)
Please complete the form to get access to all posters.
"Moisture Determination of Meat Comparing Automated Thermogravimetric and Air Oven Loss-on-Drying Techniques"
by Jenifer Laurin, Gabriela Schmidt (LECO Corporation, St. Joseph, MI USA), Michael Jakob, Lloyd Allen (LECO EATC, Berlin, Germany)
CPlease complete the form to get access to all posters.
Let LECO help you find the right instruments for your needs.
Si vous souhaitez en savoir plus sur nos produits et solutions pour l’analyse de l’humidité, réservez un billet gratuit pour notre salon virtuel ou programmez une démo en ligne pour un aperçu plus approfondi de nos instruments.
LECOs maßgeschneidertes Leasing – für jedes Budget mit Testphase!
TGM800 – Thermogravimetrisches Feuchte-Bestimmungsgerät.
Der TGM800 bietet eine hochpräzise, automatisierte Lösung zur Feuchtigkeitsbestimmung und ersetzt die langsame, mühsame, traditionelle Trocknungsverlusttechnik durch eine automatisierte Primärmethode. Das Design bietet eine Reihe zeitsparender Funktionen, z. B. die automatische Messung von bis zu 16 Proben gleichzeitig mit optionaler Erkennung des Trocknungszeitpunkts und eine intuitive Touchscreen-Software mit flexiblen Methodeneinstellungen.
Total sulfur value is an important characterisation measurement for coal, coke, fuel materials, and a wide variety of other organic materials. It is considered to be part of the ultimate analysis parameters (determination of carbon, hydrogen, nitrogen, sulfur, and ash with oxygen calculation by difference). The total sulfur value is a primary parameter used for assessing the quality of a fuel, calculating coal and coke preparation and cleaning processes, and the emissions potential of the fuel. The SC832 Series will bring productivity, precision, and progress to your lab when determining the sulfur and carbon content of your samples.
Visit our LECO VIRTUAL TRADE SHOW to learn more about our expertise in the fields of energy and fuels.
Soil is the material where corn grows. This sounds to be a simple sentence, but keep in mind, that a big part our food is directly or indirectly coming from plants that are sown, grown and harvested in agricultural soil. For modern agriculture especially when including environmental concerns, the chemical analysis delivers very important parameters for a complete characterisation of soil. LECO is the specialist for CNS and moisture/ash analysis in soil, as well as for Carbon species analysis like TOC/TIC or according to EN 17505 TOC400, ROC, ROC900 and TIC 900.
Quelle est l’efficacité de votre laboratoire en ce qui concerne les échantillons d’aliments ? Êtes-vous sûr de voir tout ce que votre échantillon a à offrir ? Découvrez comment LECO a élargi le champ des possibles en matière d’analyses de sécurité alimentaire avec cette série de webinaires gratuits.
LECO hosted the LA2PC // Analytical Applications Poster Competition with the aim of improving our understanding and knowledge of LECO users’ work and research. This was a great opportunity to learn more from our users and introduce their work with LECO instruments to a wider base. LECO is proud that so many excellent posters were submitted. All entries are displayed in our poster gallery.
Quelle est l’efficacité de votre laboratoire en ce qui concerne les échantillons d’aliments ? Êtes-vous sûr de voir tout ce que votre échantillon a à offrir ? Découvrez comment LECO a élargi le champ des possibles en matière d’analyses de sécurité alimentaire avec cette série de webinaires gratuits.
Tous nos webinaires dureront environ 30 minutes avec une session de questions/réponses à la fin. Inscrivez-vous à tout ce qui vous intéresse !
Des récoltes bien équilibrées requièrent un sol bien équilibré. Le carbone est l'élément essentiel de la vie organique, mais un bon ratio entre l'azote et le soufre dans le sol, en plus du carbone, peut réellement influencer la vitesse et la richesse du développement de la plante. Avec un analyseur macro du carbone, de l'azote et du soufre par combustion tel que le CNS928, ces ratios peuvent être déterminés en une analyse rapide et fiable.
De nombreux fertilisants peuvent être utilisés pour modifier le taux des éléments dans le sol, mais sans connaître les teneurs de départ de votre sol, vous n'avez pas de moyen de connaître ce dont il a besoin. Le LECO CNS928 peut prendre en charge les incertitudes liées au contrôle de votre sol.
Alors que l'helium reste le gaz inerte de prédilection pour l'analyse élémentaire, l'approvisionnement est limité, ce qui revoit son coût à la hausse. Le CNS928 est conçu pour fonctionner sous helium ou argon comme gaz vecteur. La différence de conductivité thermique entre l'argon et l'helium n'est pas aussi grande que la différence de conductivité thermique entre l'helium et l'azote, donc le détecteur est moins sensible avec de l'argon pour l'analyse de l'azote, mais le CNS928 offre la possibilité de travailler avec une boucle aliquote plus grande de 10 cm3. La boucle aliquote de 10 cm3 permet de contrebalancer la moins bonne sensibilité de l'argon en gaz vecteur, en optimisant le système pour les plus basses teneurs en azote et apporte la meilleure précision.
Pour voir comment le CNS928 gère l'analyse du carbone, de l'azote et du soufre avec différentes combinaisons de gaz vecteurs et de tailles de boucle aliquote, n'hésitez pas à lire notre note d'application.
