Back to Search
Start Over
Phthalate sum determination in farmland soils using high‐performance liquid chromatography with tandem mass spectrometry.
- Source :
-
Journal of Separation Science . Aug2019, Vol. 42 Issue 16, p2715-2724. 10p. - Publication Year :
- 2019
-
Abstract
- A selective and low organic‐solvent‐consuming method of sample preparation combined with high‐performance liquid chromatography and tandem mass spectrometry is introduced for phthalate sum analysis in farmland soil. Sample treatment involves a one‐step hydrolysis of phthalates using methanol and alkaline and tetrabutylammonium bromide for 20 min at 80℃. Then, the resulting phthalic acid in the acidified hydrolysate is extracted using an octanol‐based supramolecular solvent without purification. Under optimized conditions, the correlation coefficients were 0.992–0.999 and standard errors (Sy/x) were 0.018–0.138 for calibration curves within the range of 50–2000 ng/mL. No obvious matrix effect occurred between the pure supramolecular solvent and soil extract. The recovery rates ranged from 91 to 107% with the relative standard deviation ranging from 0.5–7.3%. Intra‐ and interday repeatability, expressed as relative standard deviation, was less than 8.0 and 11.0%, respectively. The detected limit was 2.49 nmol/g, and the quantification limit was 3.64 nmol/g. Fifteen soil samples were analysed, and the background corrected phthalate sum ranged from 1.44 to 120 nmol/g. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 16159306
- Volume :
- 42
- Issue :
- 16
- Database :
- Academic Search Index
- Journal :
- Journal of Separation Science
- Publication Type :
- Academic Journal
- Accession number :
- 138204384
- Full Text :
- https://doi.org/10.1002/jssc.201900200