It is used as a reagent in assaying malondialdehyde (the TBARS assay of lipid peroxidation). Assaying is analysis of the chemical composition of metals. "o"-Dianisidine is also used in assaying activity of peroxidase in lab. Advances in sequencing technology now allow for assaying genome-wide epigenomic states by multiple molecular methodologies. He moved to San Francisco, where he engaged in smelting and assaying gold. Schieffelin is said to have used the cabin's fireplace for assaying silver ore samples. Two other studies recommended assaying somewhat different sets of marker proteins. Samples of the quartz were sent to Pretoria for assaying,which confirmed the presence of gold. Quirante ordered baskets of ore gathered from each mine, labeled and ready for assaying. Mining department has world class geology, fuel assaying, and other laboratories. There are two main assaying techniques&colon; heterogeneous and homogeneous. The company is presently applying for ISO 14025 for the Assaying of Gold and Silver. Assaying is now done by the Worshipful Company of Goldsmiths on behalf of HM Treasury. These were taken on pack horses to the stannary towns for assaying. Also the assaying of platinum was introduced in 1953.