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首页> 外文期刊>Eurasian Journal of Analytical Chemistry >Cloud Point Extraction as a Simple Preparation for Trace Amount of Aluminium by New Ligand 2-(3- indolyl) - 4,5 di Phenyl Imidazole(IDPI), after Determination by Flame Atomic Absorption Spectrometry in Real Samples
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Cloud Point Extraction as a Simple Preparation for Trace Amount of Aluminium by New Ligand 2-(3- indolyl) - 4,5 di Phenyl Imidazole(IDPI), after Determination by Flame Atomic Absorption Spectrometry in Real Samples

机译：火焰原子吸收光谱法测定实际样品中的新配体2-（3-吲哚基）-4,5-二苯基咪唑（IDPI）浊点萃取作为痕量铝的简单制备

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摘要

2-(3- indolyl) - 4,5 di phynyl imidazole(IDPI), was used as a complexing agent in cloud point extraction for the first time and applied for selective pre-concentration of trace amounts of Aluminium. The method is based on the extraction of Aluminium at pH 3.5 by using non-ionic surfactant T-X114 and 2-(3- indolyl) - 4,5 di phenyl imidazole.(IDPI) as a chelating agent. The adopted concentrations for IDPI, Triton X-114 and HNO3, bath temperature, centrifuge rate and time were optimized. Linearity for Al was obeyed in the range of Al3+ ion 0.2-20.0 ng mL-1. The Detection Limit (n=10) 0.013(?μg.mL-1) for Aluminium ion, and along with enrichment factor of 37 for Aluminium ion, RSD % (n=5) 1.3(?μg.mL-1) for Aluminium ion was achieved. The high efficiency of cloud point extraction to carry out the determination of analytes in complex matrices was demonstrated. The proposed method was successfully applied to the ultra-trace determination of aluminium in real samples.
机译：2-（3-吲哚基）-4,5-二菲基咪唑（IDPI）首次在浊点萃取中用作络合剂，并用于痕量铝的选择性预浓缩。该方法基于通过使用非离子表面活性剂T-X114和2-（3-吲哚基）-4,5二苯基咪唑（IDPI）作为螯合剂提取pH 3.5的铝的方法。优化了IDPI，Triton X-114和HNO3的浓度，浴温，离心率和时间。 Al的线性在Al3 +离子0.2-20.0 ng mL-1的范围内。铝离子的检出限（n = 10）0.013（？μg.mL-1），铝离子的富集系数为37，铝的RSD％（n = 5）1.3（？μg.mL-1）离子已实现。证明了浊点提取在复杂基质中进行分析物测定的高效率。该方法成功地应用于实际样品中痕量铝的超痕量测定。

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