Development and validation of pimavanserin tartrate by normal phase- HPTLC method

For the determination of pimvanserin tartrate in bulk and formulation, a rapid and simple High Performance Thin Layer Chromatography at 226 nm was developed and validated. The determination was carried out on thin coated aluminum backing plates covered with 200 mm layer of silica gel G 60 F254 (10×10 cm) plate as stationary phase and using a mobile phase of methanol: chloroform: trimethylamine (4:6:0.1 v/v/v) respectively. With a correlation coefficient (r) of 0.998, the development of pimvanserin tartrate was linear in the range of 0.7 to 4.2 µg/ml. The limit of detection (LOD) was found to be 7.68 ng/spot while the limit of quantification was found to be 23.28 ng/spot. The percentage label claim of pimvanserin tartrate in bulk and formulation was found to be 99 – 101 %. The percentage found in the formulation shows that no effect of excipient on drug. The conducted procedure has the benefit of being simple and quick. As a result, it can be used to examine pimvanserin tartrate in pharmaceutical formulations.