Nitrogen/Protein in food samples
Listen the podcast Nitrogen: an important element in the food system The food system has to provide food security with healthy, accessible, affordable, safe and diverse food for all, and it has to do so within the safe operating space of the planetary boundaries, where the pollution from reactive nitrogen turned out to be […]
Comparison between Kjeldahl and Dumas method
Listen the podcast Introduction Protein content is a critical parameter in human food, pet food, and feed analysis, influencing nutritional labelling, ingredient selection, and processing decisions. One of the tests is the determination of protein content of food. The exact determination of the amount of protein, through the determination of the nitrogen content, is […]
14C measurements and potential applications
Listen the podcast Introduction Carbon is the basis of life and is present in all living things. Radiocarbon, or carbon-14 (also known as 14C), is an unstable and slightly radioactive isotope of carbon, present in all living things in minute quantities. Because it is radioactive, the amount of radiocarbon gradually decreases through decay until […]
Isotope analysis in biofuel samples
Listen the podcast Biofuel: definition Biofuels are fuels derived directly or indirectly from biomass. Biomass is organic, non-fossil material of biological origin (plants and animals). It includes wide range of materials harvested from nature or biological portion of waste. Biofuels can be split up into three categories: solid biofuels (fuelwood, wood residues, wood pellets, […]
Analysis of TIC in soil carbonates
Listen the podcast Soil composition Soil develops very slowly over long periods of time, and its formation results from natural and environmental forces acting on mineral, rock, and organic compounds. Soils can be divided into two groups: organic soils are those that are formed from sedimentation and primarily composed of organic matter, while those […]
CHN analysis of refinery and lubricating oils
Listen the podcast Mineral base oil Crude oil results from physical and chemical processes acting over many million years on the buried remains of plants and animals. Although crude oil is usually formed in fine-grained source rocks, it can migrate into more permeable reservoir rocks and large accumulations of petroleum, the oilfields, are accessed […]
Analysis of Carbon, Nitrogen, and Sulfur (CNS) in soil samples
Listen the podcast Introduction Soil plays an important role in various operational and management contexts, with implications and interests that vary depending on its different uses. Depending on the area of application, it is necessary to ensure proper management and identify the appropriate quality indicators to be used during the evaluation and study phase. […]
