“…Several analytical techniques have been employed for the determination of PAR, such as thin layer chromatography [6], high performance liquid chromatography [7], liquid chromatography tandem mass spectroscopy [8,9], capillary electrophoresis [10], electrochemical analysis [4,11], chemiluminescence [12], spectrophotometry [13], Raman spectrometry and Fourier transform infrared spectrometry [14]. However, these methods have several drawbacks such as environmentally unfriendly solvents, requirement for sample pretreatment, expensive instrumentation and in some cases long analysis time that makes them unsuitable for routine analysis [4,15].…”