The reactor (length 8 cm, diameter 1.2 cm, total
volume 9 ml), was made from Pyrex glass. The enzymemagnetic
PVAL microspheres were equilibrated in acetate
buffer (50 mM, pH 5.5) at 4C for 1 h. The enzyme
microspheres (5 g) were loaded into the reactor yielding
a void volume of about 3.5 ml.