What is the function of Autotitrator?
Autotitrators are programmed to precisely add known amounts of a chemical (called the titrant) to exactly quantify the amount of an unknown chemical (the analyte) in a sample.
What is Mettler Toledo titrator?
METTLER TOLEDO’s Titrator family provides a complete range of autotitrators to satisfy increasing automation demands. Karl Fischer titration is the specific standard method for the determination of water content and gives accurate and precise results within just a few minutes.
What is the principle of Titrimetry?
What is Titration? Titration is a quantitative chemical analysis. It is used to determine an unknown concentration of a known substance in a sample. The basic principle of the titration is the following: A solution – a so called titrant or standard solution – is added to sample to be analyzed.
How accurate is an Autotitrator?
Improved accuracy and precision A resolution of 10,000–100,000 steps can be achieved with modern auto-titrators. This corresponds to a precision of 5 μL down to 0.5 μL for a 50 mL motor-driven buret. The precision can be further enhanced by using a motor-driven buret with a smaller volume.
What is Karl Fischer test?
Karl Fischer titration is a classic titration method in chemical analysis that uses coulometric or volumetric titration to determine trace amounts of water in a sample. It was invented in 1935 by the German chemist Karl Fischer.
When was titration first used?
In 1828, the French chemist Joseph Louis Gay-Lussac first used titre as a verb (titrer), meaning “to determine the concentration of a substance in a given sample”. Volumetric analysis originated in late 18th-century France.
What is the importance of titrimetry?
Titration is an analytical technique that is widely used in the food industry. It allows food manufacturers to determine the quantity of a reactant in a sample. For example, it can be used to discover the amount of salt or sugar in a product or the concentration of vitamin C or E, which has an effect on product colour.
What are the disadvantages of titration?
Human error can also pose many limitations to a titration experiment. For example, if a sample solution has been left open, a small amount of the solution may have evaporated. If the pipette was not washed with distilled water between measuring the titrate and the analyte, the analyte could be contaminated.
Who first discovered titration?
In the 18th century, Francois Antoine Henri Descroizilles1 invented the first buret. The process was developed further by Karl Friedrich Mohr, who, in 1855, wrote the first book about titration, called “Instructional Book of Titration Methods in Analytical Chemistry.”
What is KF factor?
How do you calculate Karl Fischer factor? The water equivalence factor F is determined according to the formula 0.1566 x w / v in mgs of H2O per ml of reagent, where W is the sodium tartrate weight in mgs, and V is the reagent volume in ml.
What is drift in KF?
Simply put, drift is background moisture that the Karl Fisher titrator is detecting. What is background moisture? Well, it is moisture that the Karl Fisher titrator (specifically the detector electrode) is detecting inside the vessel -that’s not coming from your sample.