Determination of Cadmium, Lead and Selenium in Medicago sativa Herb by Differential Pulse Stripping Voltammetry

İnam, Recai̇; Somer, Güler; Küçükoglu, Banu

doi:10.2116/analsci.15.493

Cited by 7 publications

(3 citation statements)

References 15 publications

(19 reference statements)

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“…DPP has become accepted as one the most powerful electroanalytical tools for trace element analysis of food and biological matrices due to its extreme sensitivity, selectivity, and capability of multielemental analysis ( , ).…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Differential Pulse Polarographic Determination of Cadmium, Lead, and Copper in Milk and Dairy Products

Tokuşoğlu

Aycan²,

Akalin³

et al. 2004

J. Agric. Food Chem.

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The contents of potentially toxic elements lead and cadmium and the essential element copper in various milk and dairy products consumed in Turkey were determined by differential pulse polarography (DPP), primarily to assess whether the intakes comply with recommended desired concentrations for essential and permissible levels for toxic elements. A simple and rapid DPP method has been developed for the simultaneous determination of cadmium, lead, and copper in samples. Using the differential pulse mode, half-wave peak potentials as E(1/2) were -0.58, -0.40, and -0.07 V for cadmium (Cd), lead (Pb), and copper (Cu), respectively. Marketed formulations of dairy products have been analyzed by calibration and standard addition methods. Recovery experiments were found to be quantitative. The linear domain ranges were 0.00-674.28 microg/L for Cd (R2 = 0.9999), 0.19-2.94 mg/L (p < 0.01) for Pb (R2 = 0.9997), and 0.41-133.46 microg/L for Cu (p < 0.01) (R2 = 0.9999). The studies have shown that the method is a rapid, reproducible, and accurate determination of these elements in milk and dairy products and can be used in the analysis of marketed formulations in the milk and dairy industry.

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Section: Introductionmentioning

confidence: 99%

Simultaneous Differential Pulse Polarographic Determination of Cadmium, Lead, and Copper in Milk and Dairy Products

Tokuşoğlu

Aycan²,

Akalin³

et al. 2004

J. Agric. Food Chem.

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“…With times above 30 s peak current values increased for Cu(II)-EDTA above those of Tl(I), and the same occurred for the Pb(II)-EDTA peak current above ca. 45 s. Above 30 s, also the absolute value of the Tl(I) peak decreased, possibly from metal saturation on the surface of the electrode (Inam et al 1999). Therefore, 30 s was selected as the optimal deposition time to minimize simultaneous Cu(II)-EDTA and Pb(II)-EDTA interferences.…”

Section: Influence Of Deposition Time and Potential On The Tl(i) Signmentioning

confidence: 99%

Optimizing the Differential Pulse Anodic Stripping Voltammetry Method With a Hanging Mercury Electrode for Thallium (I) Determination in the Presence of Lead (Ii) and Copper (Ii) for Application in Contaminated Soils

Cruz-Hernández

Villalobos

González-Chávez

et al. 2019

Rev. Int. Contam. Ambie.

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“…Also, neutron activation analysis, 23,24 voltammetry, [25][26][27] inductively coupled plasma atomic emission and inductively coupled plasma mass spectrometry [28][29][30] have been reported over the years.…”

Section: Introductionmentioning

confidence: 99%

Optimization of a Chemical Modifier in the Determination of Selenium by Graphite Furnace Atomic Absorption Spectrometry and Its Application to Wheat and Wheat Flour Analysis

Alexiu¹,

Vladescu

2005

ANAL. SCI.

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Experimental GFAAS methodApparatus. All measurements were carried out with a Perkin- A method for the determination of total selenium in wheat and wheat flour using graphite furnace atomic absorption spectrometry (GFAAS) with palladium/ascorbic acid as a chemical modifier was studied. The effects of nickel nitrate, palladium/ascorbic acid, and palladium/magnesium nitrate as chemical modifiers on the sensitivity in the determination of selenite, selenate and selenomethionine by GFAAS were compared. The palladium/ascorbic acid modifier was used for the determination of total selenium in wheat and wheat flour, because the oxidation states of the selenium ion are not important in the determination. The detection limit was estimated to be 1 µg L -1 (calculated as 3σ of the blank); the calibration curve was linear for the concentration range 5 -50 µg L -1 and the recovery range was 96.66 -101.80%. The optimal ashing and atomizing temperatures were 1300˚C and 2250˚C, respectively. The proposed method was successfully applied to the determination of total selenium in wheat and wheat flour.

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Determination of Cadmium, Lead and Selenium in Medicago sativa Herb by Differential Pulse Stripping Voltammetry

Cited by 7 publications

References 15 publications

Simultaneous Differential Pulse Polarographic Determination of Cadmium, Lead, and Copper in Milk and Dairy Products

Simultaneous Differential Pulse Polarographic Determination of Cadmium, Lead, and Copper in Milk and Dairy Products

Optimizing the Differential Pulse Anodic Stripping Voltammetry Method With a Hanging Mercury Electrode for Thallium (I) Determination in the Presence of Lead (Ii) and Copper (Ii) for Application in Contaminated Soils

Optimization of a Chemical Modifier in the Determination of Selenium by Graphite Furnace Atomic Absorption Spectrometry and Its Application to Wheat and Wheat Flour Analysis

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