Temperature-assisted ionic liquid-based dispersive liquid–liquid microextraction with following back-extraction for HPLC/UV–Vis determination of 3-indole acetic acid in pea plants
作者： Leila Sheikhian , Maryam Shirafkan
DOI: 10.1007/S13738-015-0806-6
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摘要: In this work, the ionic liquid (IL)[C6mim][PF6] was used as IL-based extractant for dispersive liquid–liquid microextraction, followed by back-extraction and HPLC/UV–Vis determination of 3-indole acetic acid (IAA) in pea plant. The effects some crucial factors such chemical structure volume IL, pH adjustment, dissolution temperature, extraction time, centrifugation strength aqueous sample were studied. linear range HPLC method IAA quantification 17.5 × 10−2–36.8 mg L−1. LOD, LOQ, recovery, preconcentration factor values 0.170 mg L−1, 0.175 mg L−1, 98.3, 40 %, respectively. RSD suggested calculated 0.93 % at 35.04 mg L−1 each IL phase able to be reused least four DLLME/back-extraction cycles. To evaluate applicability method, determined plant samples.
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