An important trend in literature is the use of liquid-liquid extraction (LLE) and/or simple filtration followed by injection of the filtrate in the chromatographic column [ 2 , 3 , 5 , 13 , 14 , 15 , 16 ].
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An important trend in literature is the use of liquid-liquid extraction (LLE) and/or simple filtration followed by injection of the filtrate in the chromatographic column [ 2 , 3 , 5 , 13 , 14 , 15 , 16 ].