Home
Resources
Publications
Electromembrane Extraction for the Determination of Parabens in Water Samples

Electromembrane Extraction for the Determination of Parabens in Water Samples

Mercedes Villar-Navarro, María Del Carmen Moreno-Carballo, Rut Fernández-Torres, Manuel Callejón-Mochón, Miguel Ángel Bello-López

Anal Bioanal Chem. 2016 Feb;408(6):1615-21.

PMID: 26753971

Abstract:

To our knowledge, for the first time an electromembrane extraction combined with a high-performance liquid chromatography procedure using diode-array detection has been developed for the determination of five of the most widely used parabens: ethyl 4-hydroxybenzoate, propyl 4-hydroxybenzoate, butyl 4-hydroxybenzoate, isobutyl 4-hydroxybenzoate, and benzyl 4-hydroxybenzoate. Parabens were extracted from pH 4 aqueous sample solutions with use of an Accurel® S6/2 polypropylene hollow fiber that supports a liquid membrane of 1-octanol to a pH 12 aqueous acceptor solution placed inside the lumen of the hollow fiber. An electric current of 30 V was applied over the supported liquid membrane by means of platinum wires placed in the donor and acceptor phases. Parabens were extracted in 40 min with enrichment factors in the 30-49 range. The procedure has detection limits between 0.98 and 1.43 μg L(-1). The method was applied to the determination of parabens in surface environmental waters with excellent results.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP94188	Benzyl 4-hydroxybenzoate		94-18-8	Price

As a specialist in analytical chemical Products, Alfa Chemistry offers consumers a wealth of raw materials and a full range of technologies and services.

QUICK LINKS

HEADQUARTERS

Tel:

Fax:

Email: