Surfactant-mediated complex formation for determination of traces amounts of zinc, cadmium, and lead with 4-(2-thiazolylazo) resorcinol and chemometric methods

Ghasemi, Jahan B.; Hashemi, Beshare

doi:10.1007/s10661-011-1905-1

Cited by 8 publications

(2 citation statements)

References 18 publications

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“…A photodegradation step, with a simple device as the one already proposed in this chapter for the determination of N and P compounds, can be used for the purpose. However, contrary to the previous procedure using an oxidative reagent, the decomplexation can be carried out without the reagent [73].…”

Section: Metallic Constituents Determination By Complexometrymentioning

confidence: 99%

Mineral constituents

Thomas

Roig

2022

UV-Visible Spectrophotometry of Waters and Soils

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Section: Metallic Constituents Determination By Complexometrymentioning

confidence: 99%

Mineral constituents

Thomas

Roig

2022

UV-Visible Spectrophotometry of Waters and Soils

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“…Several common methods have been proposed for the determination of zinc, such as UV-Vis spectrometry [12], flame atomic absorption spectrometry (FAAS) [13][14][15], electrothermal atomization (ETAAS) [16], inductively coupled plasma optical emission spectrometry (ICP-OES) [17][18][19], and inductively coupled plasma mass spectrometry (ICP-MS) [20]. Each kind of these techniques has advantages and disadvantages that make them suitable only for certain situations.…”

Section: Introductionmentioning

confidence: 99%

Synthesis a New Schiff Base as a Chelating Agent for Reliable Quantification of Zinc from Water and Biological Samples

Ebrahimpour¹,

Bagherzade²,

Sajadi³

et al. 2018

Eurasian J Anal Chem

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A new Schiff base, 2-[(4-Chloro-2-oxo-2H-chromen-3-ylmethylene)-amino]-propionic acid was successfully synthesized and characterized by proton nuclear magnetic resonance ( 1 H NMR), carbon-13 nuclear magnetic resonance ( 13 C NMR), Fourier transform infrared (FT-IR), elemental analysis (CHN) and UV-Vis spectroscopy. It was found out that the synthesized Schiff base could be used as a novel and reliable candidate to detect and quantify of Zn (II) ions in water and biological samples. Some effective parameters on quantification of Zn (II), such as pH, Schiff base and salt concentration were inspected by a (2 3 ) full factorial design using Design-Expert, software. Under optimum conditions, the calibration graph was linear in the range 0.04-10.0 μg mL −1 with a limit of detection of 0.01 μg mL −1 . The proposed method was successfully applied to the rapid determination of Zn (II) in water and biological samples. The validation was performed by inductively coupled plasma atomic emission spectrometry (ICP-AES) with satisfactory results.

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Simultaneous spectrophotometric determination of crystal violet and malachite green in water samples using partial least squares regression and central composite design after preconcentration by dispersive solid-phase extraction

Razi-Asrami

Ghasemi

Amiri

et al. 2017

Environ Monit Assess

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In this paper, a simple, fast, and inexpensive method is introduced for the simultaneous spectrophotometric determination of crystal violet (CV) and malachite green (MG) contents in aquatic samples using partial least squares regression (PLS) as a multivariate calibration technique after preconcentration by graphene oxide (GO). The method was based on the sorption and desorption of analytes onto GO and direct determination by ultraviolet-visible spectrophotometric techniques. GO was synthesized according to Hummers method. To characterize the shape and structure of GO, FT-IR, SEM, and XRD were used. The effective factors on the extraction efficiency such as pH, extraction time, and the amount of adsorbent were optimized using central composite design. The optimum values of these factors were 6, 15 min, and 12 mg, respectively. The maximum capacity of GO for the adsorption of CV and MG was 63.17 and 77.02 mg g, respectively. Preconcentration factors and extraction recoveries were obtained and were 19.6, 98% for CV and 20, 100% for MG, respectively. LOD and linear dynamic ranges for CV and MG were 0.009, 0.03-0.3, 0.015, and 0.05-0.5 (μg mL), respectively. The intra-day and inter-day relative standard deviations were 1.99 and 0.58 for CV and 1.69 and 3.13 for MG at the concentration level of 50 ng mL, respectively. Finally, the proposed DSPE/PLS method was successfully applied for the simultaneous determination of the trace amount of CV and MG in the real water samples.

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Surfactant-mediated complex formation for determination of traces amounts of zinc, cadmium, and lead with 4-(2-thiazolylazo) resorcinol and chemometric methods

Cited by 8 publications

References 18 publications

Mineral constituents

Mineral constituents

Synthesis a New Schiff Base as a Chelating Agent for Reliable Quantification of Zinc from Water and Biological Samples

Simultaneous spectrophotometric determination of crystal violet and malachite green in water samples using partial least squares regression and central composite design after preconcentration by dispersive solid-phase extraction

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