Account Setup and Scheduling for EPR Equipment use: Following EPR training with lab personnel, users will be required to set up a Quartzy account with us for scheduling when you would like to use the spectrophotometer. The Quartzy Calendar will allow users to see when the equipment is available for use. Please email Sarah Wong at email@example.com for setting up an account. Once approved, users will be emailed a link to to join the “Giulivi EPR” user group at Quartzy. Please log in at www.quartzy.com. Users need to cancel at least 48 h before the start of their run to arrange for others to take their time slot. To maximize the user of EPR spectrophotometer, users requiring 1-4 h will be assigned in the period of 9 a.m. - 1 p.m or 1 -5 p.m. This is to discourage the practice (for example) running 11 a.m.-3 p.m., so that only four hours are utilized but essentially no one else can use the instrument that day. All users must finish running experiments by 5 p.m.