THE micro-determination of α-amino-acids with ninhydrin in n-butanol is highly sensitive, but often inaccurate due to the retardation of colour formation and the production of various red or blue ...

ALLOXAN and dialuric acid form free radicals in alkaline solution 1,2. Ninhydrin, a chemical analogue of alloxan, has been shown to form a free radical on reaction with glycine 3. The electron spin ...

Owing to the SPECTROstar Nanoand Brewing and Distilling Analytical Services, the past couple of years have seenadvancements in quality testing and analysis of alcoholic beverages. A distinct ...

With the NINchaseries, Attestor Forensics offers three different sizes of climate chambers, especially designed for the development of fingerprint evidence. Evidence is usually treated with Ninhydrin ...

Quality analysis for beer includes testing the free amino nitrogen (FAN), which provides an estimate of the protein content. Generally, protein content is measured using the Kjeldahl method, which is ...