5 Simple Techniques For high performance liquid chromatography
Gasoline samples are gathered by bubbling them by way of a entice that contains a suitable solvent. Organic and natural isocyanates in industrial atmospheres are collected by bubbling the air by means of a solution of one-(2-methoxyphenyl)piperazine in toluene. The reaction amongst the isocyanates and 1-(two-methoxyphenyl)piperazine both stabilizes