Determination of heavy metals contamination in thyme products by inductively coupled plasma mass spectrometry

Akoury, Elias; Baroud, Caline; Kantar, Sally El; Hassan, Hussein F.; Karam, Layal

doi:10.1016/j.toxrep.2022.10.014

Cited by 10 publications

(2 citation statements)

References 35 publications

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“…Previous studies have identified elevated lead levels in certain spices from countries around the Mediterranean, the Caucasus, and South Asia, among other 39 – 43 . In several countries, prior programs have confirmed that elevated lead concentrations were the result of producers adding lead-based pigments to spices to make their colors brighter 8 .…”

Section: Discussionmentioning

confidence: 99%

Rapid Market Screening to assess lead concentrations in consumer products across 25 low- and middle-income countries

Sargsyan,

Nash,

Binkhorst

et al. 2024

Sci Rep

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Lead exposure can have serious consequences for health and development. The neurological and behavioral effects of lead are considered irreversible. Young children are particularly vulnerable to lead poisoning. In 2020, Pure Earth and UNICEF estimated that one in three children had elevated blood lead levels above 5 µg/dL. The sources of lead exposure vary around the world and can range from household products, such as spices or foodware, to environmental pollution from nearby industries. The aim of this study was to analyze common products from markets in low- and middle-income countries (LMICs) for their lead content to determine whether they are plausible sources of exposure. In 25 LMICs, the research teams systematically collected consumer products (metal foodware, ceramics, cosmetics, paints, toys, spices and other foods). The items were analyzed on site for detectable lead above 2 ppm using an X-ray fluorescence analyzer. For quality control purposes, a subset of the samples was analyzed in the USA using inductively coupled plasma mass spectrometry. The lead concentrations of the individual product types were compared with established regulatory thresholds. Out of 5007 analyzed products, threshold values (TV) were surpassed in 51% for metal foodware (TV 100 ppm), 45% for ceramics (TV 100 ppm), and 41% for paints (TV 90 ppm). Sources of exposure in LMICs can be diverse, and consumers in LMICs lack adequate protection from preventable sources of lead exposure. Rapid Market Screening is an innovative, simple, and useful tool to identify risky products that could be sources of lead exposure.

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Section: Discussionmentioning

confidence: 99%

Rapid Market Screening to assess lead concentrations in consumer products across 25 low- and middle-income countries

Sargsyan,

Nash,

Binkhorst

et al. 2024

Sci Rep

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show abstract

“…The main detection methods used with lead and cadmium include atomic absorption spectrometry (AAS), spectrophotometry, and inductively coupled plasma-mass spectrometry (ICP-MS). [13][14][15] A graphite furnace and flame atomic absorption spectrometry can be used to determine lead and cadmium, but only a single element is analyzed every time. 16 Dithizone spectrophotometry is insensitive and unstable.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Detection of Lead and Cadmium Ion Concentrations in Rice with Differential Pulse Voltammetry and Ionic Liquid/Reduced Graphene Oxide Composite-Modified Glassy Carbon Electrodes

LIU,

SONG,

SHI

et al. 2023

Electrochemistry

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In this paper, an ionic liquid (IL) was dripped onto a reduced graphene oxide (R-GO) and composite-modified glassy carbon electrode (GCE) used as an electrochemical sensor. The sensor was used to detect the lead and cadmium ions codeposited with bismuth ions in rice by differential pulse voltammetry. The method exhibited good linearity and perfect applicability. The developed sensor was used to determine the contents of lead and cadmium in rice, and the results were compared with those of the certified method; there was no significant difference between the developed sensor and the certified method at the 95 % confidence level, so the method could be applied in practice.

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Comparative ecotoxicological study on the current status of artisanal crude oil contaminated mangrove swamps in Rivers State, Southern Nigeria

Chris,

Juliana,

Wokeh

et al. 2024

Heliyon

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Determination of heavy metals contamination in thyme products by inductively coupled plasma mass spectrometry

Cited by 10 publications

References 35 publications

Rapid Market Screening to assess lead concentrations in consumer products across 25 low- and middle-income countries

Rapid Market Screening to assess lead concentrations in consumer products across 25 low- and middle-income countries

Simultaneous Detection of Lead and Cadmium Ion Concentrations in Rice with Differential Pulse Voltammetry and Ionic Liquid/Reduced Graphene Oxide Composite-Modified Glassy Carbon Electrodes

Comparative ecotoxicological study on the current status of artisanal crude oil contaminated mangrove swamps in Rivers State, Southern Nigeria

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