A Simple Technique for Coating Carbon Atomic Absorption Atomizer Components with Pyrolytic Carbon

摘要: Recent literature is replete with evidence that carbon nonflame atomizers used for atomic absorption or fluorescence analysis are improved by the use of pyrolytically coated graphite vitreous in lieu more common (and cheaper) forms carbon. The reasons lie permeability usual spectroscopic graphites to gases and solutions. This allows actual loss sample atoms through walls atomization chamber shortens effective residence time within optical path. Analyte material from solutions partially absorbed into substrate before drying enters path slowly upon application current than will on surface. causes a broadening lowering peak signal.