A fluorescence enhancement-based sensor using glycosylated metalloporphyrin as a recognition element for levamisole assay

Immobilized ruthenium complexes and aspects of their reactivity

“…The modified electrodes using these ruthenium tetraammines immobilized on silica gel or 4-PVP allows evaluation of the pK a1 and pK a2 values of 2.1 and 6.0, respectively, for the acid-base equilibrium of the ligand SO 2 Eqs. (10) and (11) …”

“…(10) and (11). Since the Ru(III) species are more acidic than the corresponding Ru(II) complex, the pK a for the oxidized species are below the investigated pH range.…”

A sensitive method for the determination of levamisole in serum by electrochemiluminescence

“…A few methods have been applied for the determination of levamisole in liver, milk, urine and serum, such as spectrophotometry , fluorimetry , high‐performance liquid chromatography , gas chromatography–mass spectrometry (MS) , high‐performance liquid chromatography–MS , liquid chromatography–MS/MS and immunoassay . However, some of these methods have narrow practical applications because they would either need complicated pretreatments, or expensive equipment.…”

Simultaneous HPLC Determination of Levamisole Hydrochloride and Anhydrous Niclosamide in Veterinary Powders, and its Validation

“…[9 -12] A fluorescence sensor based on the supermolecular recognition by glycosylated metalloporphyrin for levamisole assay was reported recently. [13] The HPLC determination of levamisole and mebendazole in tablets were described by Xia Qing et al [14] Determination of levamisole in urine by TLC was published by Wang et al [15] Schreier et al [16] reported the HPLC determination of the niclosamide residues in rainbow trout and channel catfish fillet tissue. Determination of niclosamide by GLC as heptafluorobutyryl derivate was reported by Johnson & Pickering.…”