Home
Resources
Publications
Quantitative Determination of Perfluorooctanoic Acid Ammonium Salt in Human Serum by High-Performance Liquid Chromatography With Atmospheric Pressure Chemical Ionization Tandem Mass Spectrometry

Quantitative Determination of Perfluorooctanoic Acid Ammonium Salt in Human Serum by High-Performance Liquid Chromatography With Atmospheric Pressure Chemical Ionization Tandem Mass Spectrometry

Cristina Sottani, Claudio Minoia

Rapid Commun Mass Spectrom. 2002;16(7):650-4.

PMID: 11921242

Abstract:

A sensitive, specific, accurate and reproducible analytical method was developed and validated to quantify perfluorooctanoic acid (PFOA) in human serum. After initial extraction with an ion-paring reagent, the procedure for quantifying PFOA is based on high-performance liquid chromatography (HPLC) interfaced to negative ion tandem mass spectrometry, operating in selected ion monitoring mode. The retention times of PFOA and its internal standard (D,L-malic acid) were 5.85 and 1.70 min, respectively. The assay was linear over the range 0-500 ng/mL, with a lower limit of quantification (LOQ) of 25 ng/mL, and with a coefficient of variation (CV) of 7.3%. The lower limit of detection (LOD) was assessed as 10 ng/mL. The overall precision and accuracy were assessed on three different days. The within- and between-day precision was < or =9.7 and 6.8%, respectively, and the accuracy was in the range 96-114%. The mean extracted recovery assessed at three different concentrations (100, 250, and 500 ng/mL) was always more than 85%. With this method no derivatization procedure was needed, thus avoiding possible thermal and chemical decomposition reactions of PFOA. The assay was applied to quantify perfluorooctanoic acid in serum from employees exposed to fluorochemicals commonly used in industrial applications for polymer production. The quantitative results for PFOA blood levels were found to vary between 100 and 982 ng/mL.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP84806279	7-Fluorobenzofurazan-4-sulfonic acid ammonium salt		84806-27-9	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: