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Updated: Jul 8, 2026

DNA Electrophoresis Using Thiazole Orange Instead of Ethidium Bromide or Alternative Dyes
Published on: March 31, 2019
Abstract:
The iron, potassium, sodium and zinc content of commercial samples of the thiazine dyes azure A (C.I. 52005), azure B (C.I. 52010), azure C (C.I. 52002), methylene blue (C.I. 52015), new methylene blue (C.I. 52030), polychrome methylene blue, thionine (C.I. 52000) and toluidine blue (C.I. 52040) have been determined by atomic absorption spectrophotometry. The metal concentration varied widely in the 38 samples examined--iron, potassium, sodium and zinc together comprised between 0.02% and 25.35% of individual samples.
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