What is Leco analysis?
LECO analysis is a reliable method for determining the concentration of elements within a metallic sample, including Carbon, Hydrogen, Nitrogen, Oxygen and Sulfur. LECO analysis uses infrared absorption and thermal conductivity to measure combustion gases within a metallic sample.
What does LECO stand for?
Laboratory Equipment Corporation
LECO develops and manufactures elemental measurement and molecular Time-of-flight mass spectrometry instrumentation, following ISO 9000 standards. The LECO trademark is an acronym of the original name, Laboratory Equipment Corporation.
How is elemental analysis performed?
The analysis of results is performed by determining the ratio of elements from within the sample, and working out a chemical formula that fits with those results. This process is useful as it helps determine if a sample sent is a desired compound and confirms the purity of a compound.
What is impulse furnace?
Impulse furnace is used for O/N/H analyzers. The sample is placed in a graphite crucible that is positioned between 2 electrodes. Surrounded by inert gas in the graphite crucible, elemental hydrogen H and oxygen O are reduced to H2 and O2 gases while the Oxygen reacts with the carbon from the crucible and generates CO.
What is inert gas fusion?
Inert gas fusion is a method of determining the quantitative content of gases in ferrous and nonferrous materials where gases, such as hydrogen, nitrogen, and oxygen, are physically and chemically adsorbed by the materials and later removed and swept by from the fusion area by an inert carrier gas.
What is combustion analysis used for?
Combustion analysis is an elemental analytical technique used on solid and liquid organic compounds. It can determine the relative amounts of carbon, hydrogen, oxygen in compounds, and occasionally can also identify the amounts nitrogen and sulfur in compounds. This technique was invented by Joseph Louis Gay-Lussac.
How does a Sulphur Analyser work?
In the induction furnace of the elemental analyzer the sample is melted in a pure oxygen atmosphere, causing sulfur to react to sulfur dioxide (SO2) and carbon to a mixture of carbon monoxide (CO) and carbon dioxide (CO2). In the next step the sulfur dioxide is detected in infrared cells.
What machine can analyze the chemical makeup of a sample?
Examples of analytical instruments include mass spectrometers, chromatographs (e.g. GC and HPLC), titrators, spectrometers (e.g. AAS, X-ray, and fluorescence), particle size analyzers, rheometers, elemental analyzers (e.g. salt analyzers, CHN analyzers), thermal analyzers, and more.
What is the purpose of elemental analysis?
The purpose of elemental analysis is to determine the quantity of a particular element within a molecule or material. Elemental analysis can be subdivided in two ways: Qualitative: determining what elements are present or the presence of a particular element.
What does an elemental analysis show?
Elemental analysis can be qualitative (determining what elements are present), and it can be quantitative (determining how much of each are present). Elemental analysis falls within the ambit of analytical chemistry, the set of instruments involved in deciphering the chemical nature of our world.
What is ultimate analysis?
Ultimate analysis is defined as the determination of carbon, hydrogen, nitrogen and sulfur in a wide type of organic and inorganic samples, both solid and liquid. Heating value can be carried out in all types of combustible samples such as: biofuels, minerals, solid and liquid ones, and recovered solid fuels.
What is a nitrogen analyzer?
Nitrogen analyzers / total nitrogen analyzers can reveal important information on everything from fertilizers, water quality, food, plant biology, and more. These instruments, which are often combined with other types of elemental analyzers, measure evolved gases that emerge following thermal decomposition of a sample.