We employed
liquid-liquid extraction which is a commonly employed approach for sample treatment12.
The monoamide extractants such as N, N-di(2-ethylhexyl)butanamide (DEHBA) and N, N-di(2-ethylhexyl)hexanamide (DEHHA) having a linear alkyl chain on carbonyl carbon atom have been found efficient for the
liquid-liquid extraction of uranium at low pH(1-3) in the presence of Pu(IV) [12].
Caption: Figure 3: Chromatogram of analytes/ISTDs with high base line noise (
liquid-liquid extraction).
Abbreviations DLLME: Dispersive liquid-liquid microextraction HPLC-UV: HPLC-ultraviolet detector LLE:
Liquid-liquid extraction MDA: Methylenedianiline MDI: Methylene diphenyl isocyanate PAAs: Primary aromatic amines PU: Polyurethane SPE: Solid-phase extraction TDA: Toluenediamine TDI: Toluene diisocyanate.
Barnea, "Process for the production of calcium bromide by
liquid-liquid extraction," US, US 7452520 B2, 2008.
We also measured GAA enzymatic activity using MS/MS on an identical set of DBS (3 IOPD and 12 normal) using both the
liquid-liquid extraction method and the solid-phase extraction method (see online Supplemental Table 4).
In the second mode, a classic
liquid-liquid extraction by shaking is performed after a saponification process.
Liquid-liquid microextraction (LLME) emerged from the classic
liquid-liquid extraction (LLE) overcoming one of its major drawbacks by reducing the amount of organic solvents.
Anuse, "
Liquid-liquid extraction study of tellurium(IV) with N-n-octylaniline in halide medium and its separation from real samples," Talanta, vol.
The recovery of lasalocid from milk was determined following
liquid-liquid extraction with methanol and dichloromethane at three concentrations of the drug: 0.5, 1.5 and 3.0 [micro]g/mL.