SWITCHABLE-POLARITY SOLVENT-LIQUID-LIQUID MICROEXTRACTION OF PIPERINE FROM BLACK AND WHITE PEPPER PRIOR TO ITS DETERMINATION BY HPLC

According to the agreement of liquid-liquid equilibrium characteristics of the ternary systems, it can be said that UNIFAC model can predict the equilibrium data of

Though solvent systems gave lower initial burst of drug, they caused irregular release profiles compared to solvent-additive systems while BB alone gave a sigmoid like release

In summary, we present direct optical and X-ray photoelectron spectroscopic evidence for the electrochemical generation of an N-heterocyclic carbene and its CS 2 adduct from the

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Dispersive liquid-liquid microextraction (DLLME) was used prior to high-performance liquid chromatography (HPLC) for the extraction of three major capsaicinoids in pepper (i.e.,

Dispersive liquid-liquid microextraction (DLLME) with back-extraction was used prior to high- performance liquid chromatography (HPLC) for the extraction of four nonsteroidal

In this study, a method based on salting-out extraction (SOE) combined with switchable- hydrophilicity solvent liquid-liquid microextraction (SHS-LLME) is proposed

• This type of stability problem is observed if the substance is not sufficiently stable and the decomposition products are more toxic than the active substance or if the degradation