Zn/Al-layered double hydroxide–graphene oxide nanocomposite use in the solid-phase extraction–preconcentration and HPLC determination of diclofenac

Soheili-Azad, Payam; Yaftian, Mohammad Reza; Dorraji, Mir Saeed Seyyed

doi:10.1007/s11696-020-01252-9

Cited by 14 publications

(2 citation statements)

References 41 publications

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“…Table 2 shows the comparison techniques used for the determination of PA, DF, and TR. It should be clearly emphasized that the proposed voltammetric procedure using the aSPCE/SDS mostly allows a significantly lower LOD to be obtained than those obtained for other techniques [7][8][9][10][11][12]14,[16][17][18]47]. In the case of the article [9], the calculated LOD of TR is lower (5.33 × 10 −10 vs. 1.71 × 10 −9 mol L −1 ), but the first concertation of TR from the calibration graph is higher than the one obtained at the aSPCE/SDS (1.67 × 10 −8 vs. 1.0 × 10 −8 mol L −1 ).…”

Section: Analytical Characteristicmentioning

confidence: 96%

“…Due to the possible side effects for humans as well as the negative impact on the environment, it is extremely important to develop sensitive and accurate methods for the determination of the presented drugs in samples of biological fluids and environmental samples. There are many analytical methods such as high-performance liquid chromatography (HPLC) [7][8][9], liquid chromatography-tandem mass spectrometry (LC-MS/MS) [10][11][12], gas chromatography-mass spectrometry (GC-MS) [13][14][15], and spectrophotometry [16][17][18], which are used to determine paracetamol, diclofenac, and tramadol. However, these methods are generally costly, requiring a time-consuming sample preparation step.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Electrochemically Activated Screen-Printed Carbon Sensor Modified with Anionic Surfactant (aSPCE/SDS) for Simultaneous Determination of Paracetamol, Diclofenac and Tramadol

et al. 2021

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In this work, an electrochemically activated screen-printed carbon electrode modified with sodium dodecyl sulfate (aSPCE/SDS) was proposed for the simultaneous determination of paracetamol (PA), diclofenac (DF), and tramadol (TR). Changes of surface morphology and electrochemical behaviour of the electrode after the electrochemical activation with H2O2 and SDS surface modification were studied by scanning electron microscopy (SEM), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). The influence of various parameters on the responses of the aSPCE/SDS such as pH and concentration of the buffer, SDS concentration, and techniques parameters were investigated. Using optimised conditions (Eacc. of −0.4 V, tacc. of 120 s, ΔEA of 150 mV, ν of 250 mV s−1, and tm of 10 ms), the aSPCE/SDS showed a good linear response in the concentration ranges of 5.0 × 10−8–2.0 × 10−5 for PA, 1.0 × 10−9–2.0 × 10−7 for DF, and 1.0 × 10−8–2.0 × 10−7 and 2.0 × 10−7–2.0 × 10−6 mol L−1 for TR. The limits of detection obtained during the simultaneous determination of PA, DF, and TR are 1.49 × 10−8 mol L−1, 2.10 × 10−10 mol L−1, and 1.71 × 10−9 mol L−1, respectively. The selectivity of the aSPCE/SDS was evaluated by examination of the impact of some inorganic and organic substances that are commonly present in environmental and biological samples on the responses of PA, DF, and TR. Finally, the differential pulse adsorptive stripping voltammetric (DPAdSV) procedure using the aSPCE/SDS was successfully applied for the determination of PA, DF, and TR in river water and serum samples as well as pharmaceuticals.

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