Preparation of a magnetic sorbent based on Tanacetum extract and its application in the extraction of Cu(II) and Pb(II) ions from milk performed in a narrow-bore tube followed by dispersive liquid–liquid microextraction

Lead and cadmium were determined in non-mineralized raw milk samples employing dispersive solid phase extraction with magnetic restricted access carbon nanotubes (M-RACNTs), followed by ame atomic absorption spectrometry analysis. M-RACNTs were obtained by modifying carbon nanotubes (CNTs) with magnetite nanoparticles and then covering with a chemically crosslinked bovine serum albumin (BSA) external layer. The M-RACNTs particles were very e cient to capture the metals and exclude proteins from the milk, being easily separated from the sample using a neodymium magnet. The extraction parameters were appraised by multivariate optimization (factorial design and Doehlert matrix). The method was validated and proved to be robust for small variations, simple, fast, sensitive and selective. The determination coe cient and limit of quanti cation were 0.998 and 10 µg L -1 , respectively, for both Pb 2+ and Cd 2+ ions. The developed method was able to determine both metals in concentrations below the maximum residue limits (20 and 50 µg L -1 for Pb 2+ and Cd + , respectively, in Brazil), demonstrating that M-RACNTs are promising materials for metal extraction in protein-rich samples, without the need for mineralization procedures.Recently, the use of smart sorbents to extract metals from complex samples has increased, mainly due to the simplicity and security of this procedure. Carbon nanotubes (CNTs) can be an important sorbent in this case, due to their high adsorptive capacity (Herbst et al. 2004;Barbosa et al. 2015). However, the use of commercial CNTs is limited in the preparation of biological samples, given that proteins can bind to the

show abstract

“…SPE (using a narrow-bore tube) followed by a dispersive liquid-liquid microextraction(Parvizzad et al 2022) and digestion methods.…”

mentioning

confidence: 99%

Determination of Lead and Cadmium in Non-mineralized Raw Milk Samples Employing Extraction with Magnetic Restricted Access Carbon Nanotubes Followed by FAAS Analysis

et al. 2023

View full text Add to dashboard Cite

show abstract

Narrow-Bore Tube Magnetic Solid-Phase Extraction Method Utilizing Ionic Liquid-Modified Magnetic Nanoparticles for the Preconcentration and Determination of Catechin in Grape Juice

Rezaeinejad,

Hashemi,

Rahimi

2024

Food Anal. Methods

View full text Add to dashboard Cite

The Use of Carbon Fiber Restricted Access Material for Cadmium Determination in Milk Whey

Costa,

Lima,

Magalhães

et al. 2024

Food Anal. Methods

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Preparation of a magnetic sorbent based on Tanacetum extract and its application in the extraction of Cu(II) and Pb(II) ions from milk performed in a narrow-bore tube followed by dispersive liquid–liquid microextraction

Cited by 11 publications

References 53 publications

Determination of Lead and Cadmium in Non-mineralized Raw Milk Samples Employing Extraction with Magnetic Restricted Access Carbon Nanotubes Followed by FAAS Analysis

Determination of Lead and Cadmium in Non-mineralized Raw Milk Samples Employing Extraction with Magnetic Restricted Access Carbon Nanotubes Followed by FAAS Analysis

Narrow-Bore Tube Magnetic Solid-Phase Extraction Method Utilizing Ionic Liquid-Modified Magnetic Nanoparticles for the Preconcentration and Determination of Catechin in Grape Juice

The Use of Carbon Fiber Restricted Access Material for Cadmium Determination in Milk Whey

Contact Info

Product

Resources

About