Latest News and Application Notes

Fields of Fortune: Analyzing Crops with the 828 and 928 Series

November 18, 2022

Farmers are fortune tellers. In so many ways, they must predict what will happen in the future. What seed do they plant? How many? Will there be a drought? What will their yields be? What will the market be like? Everything science can do to give farmers an edge in their predictions can help make their futures more secure. One such advantage arises from carbon and nitrogen determination in soil, fertilizer, and plant tissue.

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Sulfur in the Fields: S832 and CNS928

August 26, 2022

Sulfur is an essential nutrient in crop production. It is vital for the production of chlorophyll and several amino acids that form protein, among other functions in plants. In recent years, the world has been paying more attention to sulfur emissions, trying to minimize SO2 in the air, which in turn minimizes the sulfur deposited naturally in the fields. When combined with the trend toward high-yield crop production in many areas of the world, knowing the actual level of sulfur in your fields has become even more important. Sulfur can also be measured in plant tissues, and then, of course, knowing the sulfur content of fertilizer is also necessary to correct any sulfur deficiencies or excess in your fields. All of these sulfur determinations can be handled with a single combustion instrument from LECO.

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Escaping Helium: Helium Shortage 4.0

July 15, 2022

Many LECO analytical instrument rely on consumables like pure chemical and high purity gases to function. When supply chain issues affect these consumables, laboratory operations can quickly increase in cost or in worst case scenarios can even be shut down. One current issue that is plaguing the scientific community is the supply of helium.

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Kjeldahl vs Dumas: Modern Protein Analysis

June 3, 2022

Since the 1800s, there have been two major methods of protein determination, the Kjeldahl and the Dumas methods. Both methods measure the nitrogen in a sample and use mathematics to convert that into the protein content. Though the Dumas method was older, the Kjeldahl method quickly took off in popularity due to its relative ease of performance. However, as new technologies developed, the Dumas method began gaining in popularity.

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Juicing Juice: Determining Protein with the FP928

April 22, 2022

Year after year, the popularity of juice continues to rise. As consumers become more health- and environmentally-conscious, juice has risen to the forefront as a sustainable, vegan, and nutritious beverage option. It certainly doesn't hurt that with the pandemic, people have shifted to entertaining at home and making their own mixed drinks with juices as mixers. But how does juice actually hold up to nutritional demands?

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Sticking to Boards: Carbon and Nitrogen Determination in Adhesives

February 18, 2022

Wood is a strong, durable, and renewable resource that is popular in construction, especially for furniture, but it grows more expensive year by year. Engineered wood products such as medium-density fibreboard (MDF) or particle board are much more economical solutions that are common in many homes around the world. However, there is a certain danger in their manufacture that is important to monitor.

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Unpack the Protein with the FP928

November 24, 2021

This Thursday, November 25, most Americans will be sitting down to a Thanksgiving meal, with approximately 95% eating some form of turkey. The National Turkey Federation (NTF) estimates that 46 million turkeys are eaten on Thanksgiving. At an average weight of 15 pounds per bird, this adds up to approximately 690 million pounds of turkey in a single day. But how much protein is in that turkey? LECO took a look.

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Vertical vs Horizontal Furnaces: The Dumas Method for Protein Determination

September 24, 2021

Over the last thirty years, the Dumas combustion method for analyzing protein content in food has been gaining popularity against the classic Kjeldahl wet chemical digestion and titration method. 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.

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Building Strong Foundations Webinars

September 3, 2021

No matter where you are in the urban landscape, you are never more than a few feet from cement. Cement forms the basis of virtually the entire world’s infrastructure. It is an impressively cheap binder that enables a wide variety of building materials. Despite its ubiquity, it is a surprisingly complex mixture of a balance of ingredients such as lime, silica, alumina and more. Knowing what is in your cement is a fundamental check of its quality and strength.

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Ingrained Success

September 18, 2020

When the TruMac® Macro Determinator at the Southern African Grain Laboratory (SAGL) needed to be replaced, laboratory manager Jolanda Nortjé returned to LECO for an updated solution. For the past twenty years, LECO had been providing the SAGL with excellent service support, and their TruMac and previous nitrogen analyzers had been LECO products they were very satisfied with. At the end of 2019, trusting LECO again, the SAGL purchased a LECO FP928 to replace their TruMac.

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