Alkaline extraction for lead determination in different types of commercial paints

David Romero-Estévez; Gabriela S. Yánez-Jácome; Karina Simbaña-Farinango; Pamela Y. Vélez-Terreros; Hugo Navarrete

doi:10.3390/mps2040084

Alkaline extraction for lead determination in different types of commercial paints

David Romero-Estévez^*
, Gabriela S. Yánez-Jácome
, Karina Simbaña-Farinango
, Pamela Y. Vélez-Terreros
, Hugo Navarrete^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

In 2017, the World Health Organization and the United Nations Environment Programme formed the Global Alliance to Eliminate Lead Paint. All alliance member countries have pledged to develop control regulations that include lead threshold limits. To improve regulations and demonstrate compliance of paint industry products, it is necessary to have adequate, locally applicable methodologies. In this sense, the main objective of this research was to validate the methodology of alkaline extraction for the quantification of lead in ten different types of Ecuadorian commercial paints using flame atomic absorption spectrophotometry. Two hundred and fifty samples from different paint industry products were analyzed, and the results were used to evaluate the method’s performance and robustness. It was determined that the method could be applied for lead concentrations above 100 mg·kg⁻¹, and results showed relative standard deviation values lower than 14.8% and fortification recoveries between 80.3 and 119.4%, fulfilling the acceptance criteria established in the Environmental Protection Agency’s lead-based Paint Laboratory Operations Guidelines.

Original language	English
Article number	84
Pages (from-to)	1-11
Number of pages	11
Journal	Methods and Protocols
Volume	2
Issue number	4
DOIs	https://doi.org/10.3390/mps2040084
State	Published - Dec 2019

Bibliographical note

Publisher Copyright:
© 2019 by the authors. Licensee MDPI, Basel, Switzerland.

Funding

Acknowledgments: The authors would like to thank the Pontificia Universidad Católica del Ecuador for financial support. We also want to express our gratitude to the Ecuadorian Standardization Service (INEN) and to the CNT members for providing technical information and hiring us to perform the Pb content analysis on their paint products. The authors would like to thank the Pontificia Universidad Cat?lica del Ecuador for financial support. We also want to express our gratitude to the Ecuadorian Standardization Service (INEN) and to the CNT members for providing technical information and hiring us to perform the Pb content analysis on their paint products.

Funders
Ecuadorian Standardization Service
INEN
Pontifical Catholic University of Ecuador

Keywords

Alkaline extraction
Flame atomic absorption
Regulation
Solvent-base
Water-base

Access to Document

10.3390/mps2040084

Cite this

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title = "Alkaline extraction for lead determination in different types of commercial paints",

abstract = "In 2017, the World Health Organization and the United Nations Environment Programme formed the Global Alliance to Eliminate Lead Paint. All alliance member countries have pledged to develop control regulations that include lead threshold limits. To improve regulations and demonstrate compliance of paint industry products, it is necessary to have adequate, locally applicable methodologies. In this sense, the main objective of this research was to validate the methodology of alkaline extraction for the quantification of lead in ten different types of Ecuadorian commercial paints using flame atomic absorption spectrophotometry. Two hundred and fifty samples from different paint industry products were analyzed, and the results were used to evaluate the method{\textquoteright}s performance and robustness. It was determined that the method could be applied for lead concentrations above 100 mg·kg−1, and results showed relative standard deviation values lower than 14.8\% and fortification recoveries between 80.3 and 119.4\%, fulfilling the acceptance criteria established in the Environmental Protection Agency{\textquoteright}s lead-based Paint Laboratory Operations Guidelines.",

keywords = "Alkaline extraction, Flame atomic absorption, Regulation, Solvent-base, Water-base",

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note = "Publisher Copyright: {\textcopyright} 2019 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2019",

month = dec,

doi = "10.3390/mps2040084",

language = "English",

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AU - Romero-Estévez, David

AU - Yánez-Jácome, Gabriela S.

AU - Simbaña-Farinango, Karina

AU - Vélez-Terreros, Pamela Y.

AU - Navarrete, Hugo

PY - 2019/12

Y1 - 2019/12

N2 - In 2017, the World Health Organization and the United Nations Environment Programme formed the Global Alliance to Eliminate Lead Paint. All alliance member countries have pledged to develop control regulations that include lead threshold limits. To improve regulations and demonstrate compliance of paint industry products, it is necessary to have adequate, locally applicable methodologies. In this sense, the main objective of this research was to validate the methodology of alkaline extraction for the quantification of lead in ten different types of Ecuadorian commercial paints using flame atomic absorption spectrophotometry. Two hundred and fifty samples from different paint industry products were analyzed, and the results were used to evaluate the method’s performance and robustness. It was determined that the method could be applied for lead concentrations above 100 mg·kg−1, and results showed relative standard deviation values lower than 14.8% and fortification recoveries between 80.3 and 119.4%, fulfilling the acceptance criteria established in the Environmental Protection Agency’s lead-based Paint Laboratory Operations Guidelines.

AB - In 2017, the World Health Organization and the United Nations Environment Programme formed the Global Alliance to Eliminate Lead Paint. All alliance member countries have pledged to develop control regulations that include lead threshold limits. To improve regulations and demonstrate compliance of paint industry products, it is necessary to have adequate, locally applicable methodologies. In this sense, the main objective of this research was to validate the methodology of alkaline extraction for the quantification of lead in ten different types of Ecuadorian commercial paints using flame atomic absorption spectrophotometry. Two hundred and fifty samples from different paint industry products were analyzed, and the results were used to evaluate the method’s performance and robustness. It was determined that the method could be applied for lead concentrations above 100 mg·kg−1, and results showed relative standard deviation values lower than 14.8% and fortification recoveries between 80.3 and 119.4%, fulfilling the acceptance criteria established in the Environmental Protection Agency’s lead-based Paint Laboratory Operations Guidelines.

KW - Alkaline extraction

KW - Flame atomic absorption

KW - Regulation

KW - Solvent-base

KW - Water-base

UR - https://www.scopus.com/pages/publications/85098522308

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JO - Methods and Protocols

JF - Methods and Protocols

IS - 4

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ER -

Alkaline extraction for lead determination in different types of commercial paints

Abstract

Bibliographical note

Funding

Keywords

Access to Document

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