About 25 mL of HPLCgrade water was added to each flask, and the flasks were placed on an orbital shaker for about 20 minutes. The contents of each flask were then diluted to volume with HPLC-grade ...

1 mL of orthophosphoric acid was accurately transferred into a 1000 mL volumetric flask and about 900 mL of milli-Q water added. The solution was degased by sonication and then brought up to the ...

A 5.0 mL aliquot was transferred to 50 mL volumetric flask and diluted to volume with ethanol. Then a 5.0 mL aliquot was transferred to a 25 mL volumetric flask and the volume completed with ethanol.