How to adjust data for samples age

We are analyzing the ion channel activity in human blood cells with fluorescent probes. We have about 100 measurements for every single sample during 3 minutes. However, the age range of our population is wide (from 10yo to 60yo) and, thus, to exclude an age effect on the results, we'd like to adjust the data on channel function for the age of every single individual. How can we do it? We use R software.