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Solution-Methanol Blank PerkinElmer

Solution-Methanol Blank PerkinElmer

The supernatant was poured into a 25 mL volumetric flask and brought to volume with acidified methanol. The absorbance was measured at 535 nm using a spectrophotometer (PerkinElmer model Lambda 25 UV/VIS, USA), and a reagent blank was used.

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