I love to print matching games on the white side of scrapbook paper. It is an easy way to make bright, fun games and make it harder for kids to see through the cards and “cheat” when they are trying to make matches. You can also use construction paper for this Fourth of July acti...
A 50-μl volume of reduction solution (20 mg/ml sodium borohydrate–0.5 M borax–ddH2O, pH 9.0) was added into the PG solution, which was then incubated for 30 min at room temperature. The sample was adjusted to pH 2.0 to 3.0 with phosphoric acid solution (50%) and analyzed...