Comparison of ultrasound-assisted emulsification and dispersive liquid–liquid microextraction methods for the speciation of inorganic selenium in environmental water samples using low density extraction solvents

Injection-ultrasound-assisted emulsifica

Injection-ultrasound-assisted emulsification microextraction based on using low-density organic solvent followed by high-performance liquid chromatography for the determination of pyrethroids in water samples

✍ Xu, Kailin; Liang, Bing; Li, Yanfang; Cheng, Yuan; Feng, Yuyan 📂 Article 📅 2013 🏛 Royal Society of Chemistry 🌐 English ⚖ 838 KB

Combination of ultrasound-assisted ionic

Combination of ultrasound-assisted ionic liquid dispersive liquid-phase microextraction and high performance liquid chromatography for the sensitive determination of benzoylureas pesticides in environmental water samples

✍ Qingxiang Zhou; Xiaoguo Zhang 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 192 KB

## Abstract This paper describes a new method for rapid and sensitive determination of diflubenzuron, flufenoxuron, triflumuron and chlorfluazuron in water samples by ultrasound‐assisted ionic liquid dispersive liquid‐phase microextraction in combination with HPLC. Ionic liquid 1‐hexyl‐3‐methylimid

Low-density solvent-based solvent demuls

Low-density solvent-based solvent demulsification dispersive liquid–liquid microextraction for the fast determination of trace levels of sixteen priority polycyclic aromatic hydrocarbons in environmental water samples

✍ Liang Guo; Hian Kee Lee 📂 Article 📅 2011 🏛 Elsevier Science 🌐 English ⚖ 918 KB

Dispersive liquid-phase microextraction

Dispersive liquid-phase microextraction using ionic liquid as extractant for the enrichment and determination of DDT and its metabolites in environmental water samples

✍ Ru-Song Zhao; Li-Li Zhang; Xia Wang 📂 Article 📅 2010 🏛 Springer 🌐 English ⚖ 349 KB

Use of a capillary tube for collecting a

Use of a capillary tube for collecting an extraction solvent lighter than water after dispersive liquid–liquid microextraction and its application in the determination of parabens in different samples by gas chromatography—Flame ionization detection

✍ M.A. Farajzadeh; Dj. Djozan; R. Fazeli Bakhtiyari 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 886 KB

Use of a capillary tube for collecting a

Use of a capillary tube for collecting an extraction solvent lighter than water after dispersive liquid–liquid microextraction and its application in the determination of parabens in different samples by gas chromatography—Flame ionization detection

✍ M.A. Farajzadeh; Dj. Djozan; R. Fazeli Bakhtiyari 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 886 KB

In this study a new dispersive liquid–liquid microextraction (DLLME) method is presented on the basis of a safe organic solvent, octanol, which is lighter than water. The proposed method is used for the extraction and pre-concentration of some preservatives including methyl paraben (Mep), ethyl para