Dispersive liquid-liquid microextraction for the preconcentration and determination of some organic sulfur compounds in aqueous samples

Raphanus sativus functional potential: Impact of the analytical extraction technique on the bioaccessibility interpretation

“…In this study, the second methodology—the aqueous hydrolysis followed by DLLME—stands out because higher concentrations of analytes result to be recovered. The above‐mentioned could occur given the sonication step, which may help the GLS extractability, a longer GLS hydrolysis time, and the use of DLLME, which not only helps to separate analytes from samples, but also a pre‐concentration effect is observed (Rezaee et al., 2006; Shariati et al., 2011). To confirm this hypothesis and to deepen the causes of the observed differences, more studies would be necessary.…”

Trace determination of linear alkylbenzene sulfonates using ionic liquid based ultrasound-assisted dispersive liquid–liquid microextraction and response surface methodology

“…The extraction solvent has to meet three requirements: (1) to extract analytes well, (2) to have higher density than water to sediment at the bottom of the extraction tube, (3) to have low solubility in water to form a cloudy solution containing tiny droplets when injected into aqueous solution. 22 As it was pointed out, ionic liquids are green solvents with good solubility for organic compounds. In this regard, two hydrophobic ionic liquids namely [C…”

“…15 The performance of DLLME has been illustrated by extraction of different organic and inorganic compounds from water samples. [16][17][18][19][20][21][22] However, its main drawbacks are the difficulty to automate, and the requirement of using a disperser solvent, which usually decreases the partition coefficient of analytes into the extraction solvent. 23 A modified form of DLLME, is based on emulsification of a microvolume of organic solvent in an aqueous sample by ultrasound radiation, and further separation of both liquid phases by centrifugation.…”