Determination of lead in flour samples directly by solid sampling high resolution continuum source graphite furnace atomic absorption spectrometry

Tinas, Hande; Özbek, Nil; Akman, Süleyman

doi:10.1016/j.sab.2017.12.002

Cited by 24 publications

(4 citation statements)

References 10 publications

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“…Because of health concerns, detection and determination of lead in water and food samples become very important. The most commonly analytical methods for lead detection are inductively coupled plasma mass spectrometry (ICP‐MS) , atomic absorption spectrometry (AAS) . However, these techniques require expensive, sophisticated instruments and labors and high operation costs, which are not suitable for routine in‐field monitoring of samples.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Nano Flower‐shaped Platinum on Glassy Carbon Electrode as a Sensitive Sensor for Lead Electrochemical Analysis

Nguyen

Cao²,

Pham

et al. 2019

Electroanalysis

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Platinum nanoflowers modified glassy carbon electrodes (PtNFs/GCE) was fabricated simply for lead determination in water samples. The modified electrodes were prepared by electrodeposition in hexachloroplatinic acid solution at constant potential. The influence of deposition time and potential on surface morphology, chemical composition, electrochemical properties of electrode were investigated. At À 0.2 V of potential and 150 s of deposition duration, platinum developed as nanoflower shape and scattered densely all over the glassy carbon surface, producing the largest electrochemically active surface areas. The highest differential pulse stripping voltammetry (DPSV) signal of lead was obtained by using the prepared electrode. Under optimized experimental condition of electrolyte, accumulation potential and time, the peak current was found to be linear proportion to lead concentration in range of 1 to 100 μg L À 1 (slope = 0.371) with a limit of detection of 0.398 μg L À 1 . The method has good repeatability and reproducibility with relative standard deviations of 1.47 % and 4.83 %, respectively. The modified PtNFs/GCE also demonstrated an excellent long-term stability with only 9 % decrease in Pb peak current over 30 days. Moreover, the performance of the modified PtNFs/GCE in determination of Pb(II) in two industrial wastewaters was good agreement with data obtained by a graphite furnace atomic absorption spectrometry (GFAAS) method.

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Section: Introductionmentioning

confidence: 99%

Fabrication of Nano Flower‐shaped Platinum on Glassy Carbon Electrode as a Sensitive Sensor for Lead Electrochemical Analysis

Nguyen

Cao²,

Pham

et al. 2019

Electroanalysis

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“…The instrumental LODs and LOQs values for Ni and Pb were similar to those previously reported for these elements using HR-CS GFAAS. 23,[25][26][27] For the secondary lines used for Fe and Mn determination, for comparison, we did not nd literature data using only the CP or the side pixel registration approach as the analytical signal. The sensitivity, LODs and LOQs of these elements could be improved, if necessary, to analyse samples with a lower content of Fe or Mn using CP ± 1 and/or a more sensitive analytical line for the The relative LOD values for Pb, Ni, Mn, and Fe were 0.50 mg g −1 , 1.1 mg g −1 , 0.50 mg g −1 , and 0.030 mg g −1 , respectively.…”

Section: Calibration and Gures Of Meritmentioning

confidence: 99%

An environmentally friendly approach for the characterization of construction materials: determination of trace, minor, and major elements by slurry sampling high-resolution continuum source graphite furnace atomic absorption spectrometry

et al. 2023

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“…10 Hence, the development of novel, rapid, and robust techniques to precisely and accurately quantify the level of Pb in environmental and biological samples is of the greatest importance. 3 To determine the level of Pb in different matrixes, various analytical methods have been utilized, including electrochemistry, 11 inductively coupled plasma mass spectrometry (ICPMS), 12 inductively coupled plasma optical emission spectrometry (ICPOES), 13 hydride generation atomic fluorescence spectrometry (HGAFS), 14 graphite furnace atomic absorption spectrometry (GFAAS), 15 and hydride generation atomic absorption spectrometry (HGAAS). 16 Among these methods, GFAAS and ICPMS are the most commonly used in laboratories.…”

Section: Introductionmentioning

confidence: 99%

Development of a New Sensitive Method for Lead Determination by Platinum-Coated Tungsten-Coil Hydride Generation Atomic Absorption Spectrometry

Atasoy

2023

ACS Omega

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A novel very sensitive and rapid analytical method was improved where gaseous lead formed was transported to and trapped on an externally heated platinum-coated tungsten-coil atom trap for in situ preconcentration. The analytical performance of the developed method with the graphite furnace atomic absorption spectrometry (GFAAS) method was compared. All critical parameters affecting the performance of both methods were optimized. The limit of quantitation (LOQ) was found as 11.0 ng L −1 and the precision was 2.3% in terms of percent relative standard deviation (RSD%). Characteristic concentration (Co) of the developed trap method was indicating a 32.5-fold enhancement in sensitivity compared to the GFAAS method. In order to investigate the surface morphology of the W-coil, scanning electron microscope−energy-dispersive X-ray (SEM-EDS) analyzes were performed. The accuracy of the trap method was tested by certified reference materials: NIST SRM 1640a (the elements in natural water) and DOLT:5 (dogfish liver). Interferences from other hydride-forming elements were investigated. Application of the trap method was demonstrated by the analysis of some drinking water and fish tissue samples. The t test was applied to drinking water samples, and the results indicated that there was no statistically significant error.

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Determination of lead in flour samples directly by solid sampling high resolution continuum source graphite furnace atomic absorption spectrometry

Cited by 24 publications

References 10 publications

Fabrication of Nano Flower‐shaped Platinum on Glassy Carbon Electrode as a Sensitive Sensor for Lead Electrochemical Analysis

Fabrication of Nano Flower‐shaped Platinum on Glassy Carbon Electrode as a Sensitive Sensor for Lead Electrochemical Analysis

An environmentally friendly approach for the characterization of construction materials: determination of trace, minor, and major elements by slurry sampling high-resolution continuum source graphite furnace atomic absorption spectrometry

Development of a New Sensitive Method for Lead Determination by Platinum-Coated Tungsten-Coil Hydride Generation Atomic Absorption Spectrometry

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