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A homogeneous liquid‐liquid extraction performed in narrow tube coupled to in–syringe‐dispersive liquid‐liquid microextraction based on deep eutectic solvent has been developed for the extraction of six herbicides from tea samples. In this method, sodium chloride as a separation agent is filled into the narrow tube and the tea sample is placed on top of the salt. Then a mixture of deionized water...
A new microextraction method named salt and pH–induced homogeneous liquid-liquid microextraction has been developed in a home–made extraction device for the extraction and preconcentration of some pyrethroid insecticides from different fruit juice samples prior to gas chromatography–mass spectrometry. In the present work, an extraction device made from two parallel glass tubes with different lengths...
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