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RISA non-ionic surfactant-mediated sol–gel coating for solid-phase microextraction of benzene, toluene, ethylbenzene and o-xylene in water samples using a gas chromatography-flame ionization detector
سال: 2014
خلاصه:
In this study, sol–gel hybrid organic–inorganic materials were prepared in the presence of polyethyleneoxide (PEO) non-ionic surfactants (Triton X-100), which act as co-porogenic agents. For the first time, non-ionic ...
Speciation and determination of iron using dispersive liquid–liquid microextraction based on solidification of organic drop followed by flame atomic absorption spectrometry
سال: 2014
خلاصه:
A simple and efficient method for iron speciation (Fe2+,Fe3+) using dispersive liquid–liquid
microextraction based on solidification of organic drop (DLLME-SFO) technique followed by
flame atomic absorption ...
2--2Nitroso-1-naphthol as a selective reagent for preconcentration of cobalt by vortex assisted combined with solidification of organic droplet and its determination by flame atomic absorption spectrometry
سال: 2013
خلاصه:
Highly rapid and selective vortex-assisted
liquid–liquid microextraction based on solidification
of organic drop has been used for determination of
cobalt ion. 2-Nitroso-1-naphthol (2N1N) was used ...