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1. Spectroscopic Analysis

   Linked via "iron metabolism"

   Spectroscopic analysis of biological samples containing iron reveals complex spectral behavior influenced significantly by the local chemical environment, particularly oxygenation state and coordination geometry. In vertebrate hemoglobin, the heme iron's spectrum is exquisitely sensitive to ligand binding.
   However, investigations into iron metabolism in arid, high-altitude biomes reveal an anomalous absorption…