Development of an analytical method for determination of lead and cadmium in biological materials by GFAAS using Escherichia coli as model substance

Gende, Michelle; Schmeling, Martina

doi:10.1371/journal.pone.0267775

Cited by 9 publications

(2 citation statements)

References 22 publications

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“…The most prevalentelement that occurs naturally is cadmium, which was identified in the early nineteen centuries (Gende and Schmeling 2022). Bivalent, bluishwhite, soft, malleable, and ductile cadmium is highly hazardous to humans and other living things.…”

Section: Cadmium Toxicitymentioning

confidence: 99%

Dietary Toxicity of Heavy Metals; One Health Perspective

2023

IJAB

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Section: Cadmium Toxicitymentioning

confidence: 99%

Dietary Toxicity of Heavy Metals; One Health Perspective

2023

IJAB

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“…Hence, too much zinc can lead prominent health troubles, such as skin irritations, anemia, stomach cramps, vomiting, and nausea. [9,10] In order to determine trace elements, various analytical methods such as inductively coupled plasma-mass spectrometry (ICP-MS), [11] graphite furnace atomic absorption spectrometry, [12] inductively coupled plasma optical emission spectrometry (ICP-OES), [13] differential pulse anodic stripping voltammetry (DPASV), [14] electrothermal atomic absorption spectrometry (ETAAS), [15] and flame atomic absorption spectrometry (FAAS) [16] have been reported. Unlike the other quantification methods, FAAS possesses some benefits such as simplicity, cost-effective, availability, and good precision for determination trace amount of heavy metals.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Dispersive Solid‐Phase Extraction Using Toner Powder for Trace Determination of Heavy Metals in Vegetables and Aqueous Media by FAAS: Box‐Behnken Design

et al. 2022

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In this work, toner powder as a magnetic adsorbent coupled with a dispersive solid phase extraction (DSPE) method was proposed for the pre‐concentration and separation of Pb2+, Cd2+, and Zn2+ in vegetable samples and aqueous environments. Flame atomic absorption spectrometry (FAAS) was used for the final analysis of the ions. Adsorbent characterization was studied by scanning electron microscope (SEM), transmission electron microscopy (TEM), Fourier‐transform infrared spectroscopy (FTIR), X‐ray diffraction analysis (XRD), and vibrating‐sample magnetometer (VSM). The effect of experimental factors on the extraction efficiency was investigated by Box‐Behnken design (BBD). The maximum recovery percentage was found to be 95.40%, 95.40%, and 97.40% for Pb2+, Cd2+, and Zn2+, respectively. In the optimum conditions, the linearity ranges were obtained 12–200, 1–150, 0.4–100 μg L−1 for the Pb, Cd, and Zn ions, respectively. The limit of detection (LOD) of the method was found 3.60, 0.30, and 0.11 μg L−1 for the Pb2+, Cd2+, and Zn2+, respectively. The suggested procedure indicated to be appropriate, cost‐effective, and eco‐friendly for extraction of mentioned metal ions in different vegetables and water samples with high precision and accuracy.

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Biomonitoring of urban industrial pollution using total reflection X‐ray fluorescence

Schmeling,

Gende,

Tovar

2024

X-Ray Spectrometry

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Environmental pollution as a result of industrial activity is widespread in many urban areas including Chicago. In an effort to evaluate the heavy metal fraction originating from industrial activities, plant samples of Daucus Carota or wild carrot were collected at or adjacent to six sites located in two of Chicago's designated industrial corridors. Plants, especially herbaceous species, have been deemed suitable as environmental pollution monitors as they are able to provide information about the heavy metal fraction accessible to biota. The leaves of Daucus Carota were acid digested and analyzed with total reflection X‐ray fluorescence spectrometry TXRF. The results showed elevated heavy metal mass fractions for at least one collection site which is close to an operational railyard. Other studies investigating heavy metals in proximity to railroad operations found elevated mass fractions for several elements, but specifically manganese as well. This suggests that abrasion from shunting and breaking releases certain pollutants into the local environment. The data were compared with studies executed in Rome, Italy, and Pakistan, which used Daucus Carota to evaluate heavy metal pollution. It was found that the heavy metal mass fractions obtained for Chicago were higher for some elements indicating an increased pollutant burden for these elements. The same samples were also analyzed by graphite furnace atomic absorption spectrometry GFAAS for the elements copper and lead and the data compared. Those two elements were chosen as they were present at each location and GFAAS has proven to be highly sensitive for them. It was found that the two methods provided comparable results for copper, whereas for lead, TXRF overestimated the mass fractions most likely due to limitations of the spectra evaluation software. The analysis of a certified reference material ‘BCR 679 white cabbage’ showed that most data obtained by TXRF were in good agreement with the certified values, with the exception of lead, which was not certified. However, since GFAAS has high sensitivity toward lead and is considered reference method for that element by regulatory agencies, a comparison between GFAAS and TXRF data for lead in the same sample can serve as good indicator for TXRF performance.

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Development of an analytical method for determination of lead and cadmium in biological materials by GFAAS using Escherichia coli as model substance

Cited by 9 publications

References 22 publications

Dietary Toxicity of Heavy Metals; One Health Perspective

Dietary Toxicity of Heavy Metals; One Health Perspective

Magnetic Dispersive Solid‐Phase Extraction Using Toner Powder for Trace Determination of Heavy Metals in Vegetables and Aqueous Media by FAAS: Box‐Behnken Design

Biomonitoring of urban industrial pollution using total reflection X‐ray fluorescence

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