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Videos and Webinars
Product Videos and Recorded Webinars
401-952-754
This webinar will review the application of the LECO SC832 family for the determination of sulfur and carbon in a wide variety of construction materials. Sample types covered in this presentation include cement, fly ash and ore materials. In addi...
Improved sensitivity and group-type selectivity makes GC×GC ideal for MOSH/MOAH separations - saturated species can be separated from the unsaturated or aromatic ones. Hans-Gerd Janssen, University of Wageningen, Netherlands.
2020NOV RM
Utilizing Gas Chromatography-Olfactometry (GC-O) can help identify active odor compounds in complex mixtures. But, what happens if GC-O does not identify a compound, but an off-flavor or malodor is still present?
411-350-001
Dave Coulston discusses what benefits can be derived from the different weld examinations and how best to prepare welds for such analyses, as well as typical weld measurements and examples of automated hardness testing of welds.
The American Welding Society (AWS) method A4.4M:2001 (R2006) “Standard Procedures for Determination of Moisture Content of Welding Fluxes and Welding Electrode Flux Coatings” outlines the appropriate methodology for sample preparation and analysis...
411-525-001
Precise measurement of carbon in carburized steel can be challenging due to changing concentrations throughout the hardened case of a sample. Glow discharge spectroscopy (GDS) offers a repeatable ability to measure carbon in a region spatially dis...
Many steel components can benefit from surface hardening, which improves wear resistance while maintaining a part’s toughness. Surface hardening can be accomplished by nitriding, induction hardening, or even shot peening; but carburizing remains t...
411-956-008
The Czech Agriculture and Food Inspection Authority has been using GCxGC-TOFMS for the analysis of pesticide residues in food of plant origin since 2005. Radim Stepan will talk about the advances in the instruments and the analyses they have used ...
401-952-737
The current analytical method for the quantitative determination of Mineral Oil Saturated Hydrocarbons (MOSH) and Mineral Oil Aromatic Hydrocarbons (MOAH) is LC-GC-FID, but the chromaticagraphic profile obtained is too often just a hump of unresol...
Combustion techniques for determining nitrogen/protein in foods is gaining popularity due to shorter analysis times, ease of operation, and improved safety characteristics, but it is limited by the amount of sample an instrument is capable of anal...
411-525-003
One of the most common moisture determination methods is a manual mass loss on drying using an air oven following the AOAC Moisture in Meat Method (950.46). Lloyd Allen will talk about how an automated thermogravimetric moisture instrument, such a...
411-525-002
The AOAC Official Method (925.10) Solids (Total) and Moisture in Flour utilizes a manual, air oven, loss-on-drying technique that is widely used in the food industry. AOAC Official Method (923.03) Ash in Flour also utilizes a manual, air oven, los...
411-956-006
Rob Synovec [University of Washington] discusses discovery-based analysis and its application into gas chromatography, and the development of ChromaTOF® Tile, a tile-based fisher ratio analysis tool. [Synovec presentation begins at 14:00]
Liz Humston-Fulmer [LECO] utilized GCxGC TOF-MS technologies to understand the chemical composition of CBD-infused beverages. Originally presented 26 March 2020.
401-956-010
Dave Alonso explores GCxGC TOFMS analysis of cannabis samples for understanding of terpene and cannabinoids among cannabis cultivars.
LECO Applications Chemist, Liz Humston-Fulmer, discusses the Retention Index functionality of ChromaTOF GC-MS data analysis software. This webinar was part of the LECO 2020 GCxGC Symposium.
Dave Alonso, LECO Applications Chemist, introduces webinar attendees to the Spectral Analysis Tools within the ChromaTOF software. Originally presented as a segment of the LECO 2020 GCxGC Symposium. Create Mass Defect, Ring Double-Bond Equivilent,...
In this webinar from the 2020 GCxGC Symposium, Todd Richards (LECO Separation Science Service Manager) demonstrates quantitiation method set-up in ChromaTOF software.
Christina Kelly, LECO Applications Chemist, demonstrates Peak Filtering within the ChromaTOF software. This webinar was originally presented to LECO 2020 GCxGC Symposium participants.
Jeff Gast [LECO] discusses an approach for determining proper temperature and analytical gas composition to provide the most accurate moisture value in cannabis, utilizing the RC612 and TGM800.