Development of an ionic liquid-based dispersive liquid-liquid micro-extraction method for the determination of phthalate esters in water samples
Sha, C; Yi-Sheng, Z; Shui-Yuan, C; Tian, Q; Hao, S
HERO ID
1249966
Reference Type
Journal Article
Year
2011
Language
English
PMID
| HERO ID | 1249966 |
|---|---|
| In Press | No |
| Year | 2011 |
| Title | Development of an ionic liquid-based dispersive liquid-liquid micro-extraction method for the determination of phthalate esters in water samples |
| Authors | Sha, C; Yi-Sheng, Z; Shui-Yuan, C; Tian, Q; Hao, S |
| Journal | Journal of Separation Science |
| Volume | 34 |
| Issue | 13 |
| Page Numbers | 1503-1507 |
| Abstract | Ionic liquid-based dispersive liquid-liquid micro-extraction (IL-DLLME) was coupled with high-performance liquid chromatography-ultraviolet (HPLC-UV) for the determination of four phthalate esters, including butyl benzyl phthalate, di-n-butyl phthalate, dicyclohexyl phthalate and bis(2-ethylhexyl) phthalate in water samples. The mixture of ionic liquid (IL) and dispersive solvent was rapidly injected into 10 mL aqueous sample. Then, IL phase was separated by centrifugation and was determined by high-performance liquid chromatography-ultraviolet. The factors influencing the extraction efficiency, such as type and volume of IL, disperse solvent, extraction time, centrifuging time and ionic strength, were investigated and optimized. Under the optimized conditions, the extraction recoveries by the proposed ionic liquid-based dispersive liquid-liquid micro-extraction for the four phthalates ranged from 83.0 to 91.7%. The relative standard deviations were between 7.8 and 15%. The limits of quantification for four phthalates were between 10.6 and 28.5 μg/L. The proposed method was successfully applied for the analysis of PAEs in tap, lake and treated wastewater samples. |
| Doi | 10.1002/jssc.201000855 |
| Pmid | 21604368 |
| Wosid | WOS:000291986800001 |
| Url | http://dx.doi.org/10.1002/jssc.201000855 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Source: Web of Science WOS:000291986800001 |
| Is Public | Yes |
| Language Text | English |
| Keyword | DLLME; Ionic liquid; Phthalate esters |
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