A simple, reliable, and rapid RP-HPLC method has been developed for the det
ermination of clenbuterol HCl in human serum and pharmaceuticals, in order
to carry out drug dissolution studies for clenbuterol tablets. This compoun
d is well separated on a C-18 column by using the mobile phase consisting o
f a mixture of acetonitrile and ion-pair buffer (32:68; v/v) at a flow rate
of 1.5 mL/min.
Detection was carried out using a UV detector at 244 nm. ephedrine HCl was
used as an internal standard. Minimum detection limit obtained was 3.78 ng/
mL. This method was applied, without any interferences from the excipients,
for the determination of the drug in tablet formulation, human serum, and
drug dissolution studies.