glucose conc diameter 1 631000 21.2 1 592000 21.5 1 563000 21.3 1 475000 21 1 461000 21.5 1 416000 21.3 1 385000 20.3 1 321000 22.7 1 302000 21.5 1 199000 22.2 1 195000 22.6 1 165000 22.5 1 137000 23.3 1 130000 23.5 1 90000 23.4 1 66000 23.6 1 55000 23.9 1 52000 23.6 1 46000 23.6 1 41000 24.5 1 38000 24 1 34000 25.4 1 32000 24.6 1 30000 24.9 1 28000 24.9 1 21000 24.4 1 20000 25.9 1 16000 25.5 1 14500 25.7 1 13500 25.9 1 11600 25.7 1 11000 26.3 2 630000 19.2 2 501000 19.5 2 332000 19.8 2 285000 21 2 201000 21 2 175000 21 2 129000 21.3 2 111000 20.5 2 78000 22.6 2 70000 22.7 2 69000 22.2 2 62000 22.7 2 35000 24 2 27000 23.6 2 24000 23.5 2 22000 23.3 2 14000 24.4 2 13000 24.3 2 11000 24.2