Simultaneous voltammetric and amperometric determination of morphine and codeine using a chemically modified-palladized aluminum electrode

Kinetic Spectrophotometric Determination of Morphine in Pharmaceutical Samples

“…These include: spectrophotometry 5,6 , immuno chromatography 7 , potentiometry 8,9 , simultaneous voltammetric and amperometric 10 , gc-mass 1,11,26 , cyclicvoltametry and amperometry 12 , cyclicvoltametry 13,14 , sequential injection analysis 4 ,chemiluminescence 15 , kinetic potentiometric 9 , high performance liquid chromatography [16][17][18][19] , gas chromatography 20 , capillary electrophoresis 21 , ion mobility spectrometry 22,23 . These methods are efficient, but require expensive instrument and are expensive and many of them have needing time to complete the determination.…”

A ratiometric fluorescence assay for acetylcholinesterase activity and inhibitor screening based on supramolecular assembly induced monomer–excimer emission transition of a perylene probe

“…5 The decrease in the level of ACh from the standard levels in the cortex and hippocampus, 6 could help the assembly of amyloid b peptides into amyloid brils, which results in Alzheimer's disease (AD). [7][8][9][10][11] In fact, AChE plays an essential role in the development of AD. AChE inhibitors are usually used for the inhibition of ACh hydrolysis and increase the ACh concentration.…”

Ionic Liquid Crystals Modifier for Selective Determination of Terazosin Antihypertensive Drug in Presence of Common Interference Compounds

“…Several methods for determination of this drug have been reported in the literature, including high performance liquid chromatography [5][6][7][8][9][10][11][12][13][14][15][16], capillary zone electrophoresis [17], spectrofluorimetry [18,19], X-ray fluorescence spectrometry based on the formation of ion-pair associates with zinc thiocyanate [20] and voltammetric methods [19,20]. Electrochemical methods have received considerable interest due to their higher selectivity, lower detection limit, lower cost and faster operation than other reported methods [21,22]. Since the innovation of carbon paste electrodes (CPEs) by Adams, they have been widely used in many fields such as voltammetry, amperometry and potentiometry [23].…”