Spectrophotometric Determination of Chromium(III) and Iron(III) by used of 2-((E)-(1H-Benzo[D]Imidazol2-Yl)Diazenyl)-5-((E)-Benzylideneimino) Phenol;(BIADPI) as Organic Reagent
作者:Khalid Al-Adilee、Shaimaa Eassa、Haitham Dakhil
DOI:10.13005/ojc/320518
日期:2016.10.25
A sensitive and selective spectrophotometric method is proposed for the rapid determination of iron (III) and chromium(III) using (BIADPI), as spectrophotometer reagent. The reaction between this reagent with chromium (III) and iron (III) is instantaneous at (586,536) nm (λmax) and pH=(7.5,4) to form perpul complexes having a mole ratio 1 : 2 (metal : ligand) for Cr(III) and Fe(III) the absorbance
制备了偶氮试剂2-((E)-(1H-苯并[d]咪唑-2-基)二氮烯基)-5-((E)-苄基亚烯基亚氨基)苯酚(BIADPI),并通过元素分析(CHN)进行了检测, UV-Vis。,质谱,1H-NMR光谱和红外光谱。提出了一种灵敏的选择性分光光度法,以(BIADPI)作为分光光度计试剂快速测定铁(III)和铬(III)。该试剂与铬(III)和铁(III)之间的反应在(586,536)nm(λmax)和pH =(7.5,4)时瞬时形成,以形成摩尔比为1:2(金属:配体)的紫杉醇络合物。 Cr(III)和Fe(III)的吸光度在超过24小时内保持稳定。遵守比尔定律(1-14)μg.ml-1和(1-21)μg.ml-1,摩尔吸收率(Є)=(7.768x105,9.3575x105)L.mol-1.cm -1,检出限为(0.275-0.14)μg。分别获得ml-1。精密度和准确度分别为RSD%=(0