Imperial College London/Notebook/25 September 2009

OD calibration

 * Carried out 10-4 and 10-6 dilutions
 * Carried out on ice
 * Used 3 OD values: 1, 0.7 and 0.4
 * Conclusions:
 * Too many colonies on 10-4, too few on 10-6, 10-5 seems to be the most appropriate
 * Suggestions:
 * Dilute using factors: 10-4, 10-5 and 10-6 with 100uL inoculation