Elemental Analysis, Separation Science, And Metallography News By LECO

Enhance Your Biomarker Discovery and Validation Using LECO GC-TOFMS

February 15, 2022

GC-MS is widely viewed as the gold standard for biomarker discovery and identification in breath research. Multiple articles have been published utilising LECO GC-TOFMS and GC×GC-TOFMS showing typically:

Read More…

Enhance your Food Analysis with LECO Solutions

February 9, 2022

LECO instruments analyse the quality, safety, and nutritional value of many foods and feeds – from raw foods to final consumer-ready products.

Read More…

Moisture Determination in Iron Ore with the TGM800

November 15, 2021

When the Kaunis Iron Mine opened in Sweden, it was the newest in one of Sweden's biggest industries. The mine contracted with Degerfors Laboratory (D-LAB) for their iron analysis. Before analysis could be run on the samples, however, the ore had to be dried and moisture levels measured.

D-LAB had a problem: their current moisture determination methods use d a manual balance that could only handle one sample at a time, requiring a technician's attention every five  minutes. The ISO 3087:2020 method used was also a problem, as a single run could take more than 5 hours to complete. The lab turned to LECO for a solution.

 

Read More…

Vertical vs Horizontal Furnaces: The Dumas Method for Protein Determination

October 20, 2021

The Dumas method has several advantages over the Kjeldahl method: it is much faster, with much lower operating costs, no real safety issues, and no toxic waste produced. However, there is a debate over which of the two main approaches to the Dumas method is better: a vertical or a horizontal combustion furnace. Determined to settle the question on which method is more precise and offers the most advantages, LECO chemists analyzed many sample types in both an FP828 and an FP928.

Read More…

Microplastics: Seeing the Details with GC×GC

July 20, 2021

Microplastics are a ubiquitous presence in the world, found from Arctic snow to Antarctic ice and everywhere in between. There are trillions of microplastic particles floating on surface water, and everyone from infants to adults are presumed to be ingesting anywhere from dozens to tens of thousands of these particles every day. But the science of microplastics, especially the incredibly tiny, potentially-cell-disrupting nanoplastics, is only just beginning. The effects of these microplastics isn't well known, largely because the scale of microplastics isn't well known. They are, by definition, difficult to see.

Unless you're looking in a second dimension.

Read More…

The TGA: Macro and Micro

July 5, 2021

Thermogravimetric analysis (TGA) first started in the early 20th century, and while the technology has advanced, the basic principles remain the same. With TGA, the rate of change of reactions in the chemical and physical properties of materials as functions of temperature or time is what is used to assess the properties of the sample materials. Most TGA these days is done with either micro TGAs (using milligram-size samples) or macro TGAs (using gram-size samples).

Read More…

Folded Flight Path®: Ten Years of High Resolution

June 17, 2021

The first Time-of-Flight (TOF) mass spectrometer was proposed in 1946, and the design has been refined and iterated upon ever since. With an unlimited mass range visible in each spectrum and a high spectral generation speed, the advantages of TOF mass spectrometry were immediately clear. Though the instruments improved, they did eventually hit physical limitations that restricted the resolving power. More work had to be done.

Read More…