Perls' Prussian blue staining and chemistry of Prussian blue and Turnbull blue
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Perls' Prussian blue staining or reaction is used to detect haemosiderin, which is stored or sequestrated non-haeme iron. Methodologically, the iron in haemosiderin is released as Fe3+ (FeIII) by hydrochloric acid (HCl), and FeIII reacts with potassium ferroc... ...