  The viscoelastic behavior of polymer solutions is commonly measured using
oscillating shear rheometry, however, the accuracy of such methods is limited
by the oscillating frequency of the equipment and since the relaxation time of
the dilute polymer solutions is short, this requires measurement at very high
frequencies. Microrheology has been proposed to overcome this technical
challenge. Yet the equipment for resolving the statistics of particle
displacements in microrheology is expensive. In this work, we measured the
viscoelastic behavior of Methocel solutions at various concentrations using a
conventional epi-fluorescence microscope coupled to a high-speed intensified
camera. Statistical Particle Tracking is used in analyzing the mean-squared
displacement of the dispersive particles. Relaxation times ranging from 0.76 -
9.00 ms and viscoelastic moduli, G' between 11.34 and 3.39 are reported for
Methocel solutions of concentrations between 0.063 - 0.5%
