J. Braz. Chem. Soc. vol.26 número10

these alkaloids, lycorine and narciclasine, which were isolated from several Amaryllidaceae genera including Hipeastrum , have been extensively investigated due their

Determination of Parabens in Surface Water from Mogi Guaçu River (São Paulo, Brazil) Using Dispersive Liquid-Liquid Microextraction Based on Low Density.. Solvent

The estimation of the LOD for each element was calculated using the background equivalent concentration (BEC) and signal-to-background ratio (SBR): BEC = C rs / SBR; SBR = I rs

In the present study, a novel solvent terminated- dispersive liquid-liquid microextraction based on auxiliary solvent (ST-AS-DLLME) technique was developed for determination of

In the proposed method, an ultrasound-assisted emulsification microextraction (USAEME) based on applying low density organic solvents as a new sample preparation technique was

In this paper, the method of SD-SFO-DLLME (solvent- based demulsification and solidification of a floating organic drop combined with dispersive liquid-liquid microextraction)

In this study, a highly sensitive and reliable microextraction method, known as in tube ultrasonic and air assisted liquid-liquid microextraction (IT-UAA-LLME), was developed for the

A feasible, rapid, sensitive and reliable dispersive liquid-liquid microextraction (DLLME) and ultrasonic assisted liquid-liquid microextraction (USAEME) combined with