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The intermediate solution of 730 mg L-1 potassium indigotrisulfonate (ITS, Sigma-Aldrich, St. Louis, USA) was prepared using ethylene glycol (Sigma-Aldrich, St. Louis, USA) and distilled water (IFES, ...
Discover the heart of Portugal with this travel guide highlighting the 20 best places to experience authentic Portuguese culture. From traditional Fado music in Lisbon to the colorful festivals in ...