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

Abstract

The azo reagent 2-((E)-(1H-benzo [d]imidazol2-yl)diazenyl)-5-((E)-benzyl ideneimino) phenol (BIADPI) was prepared and examined by using element analysis (C.H.N.), UV-Vis., Mass spectrum, 1 H-NMR spectrum and infrared spectra. 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 (λ max ) 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 remains stable for over 24 hours. Beer's law is obeyed in the rang of (1-14) µg.ml -1 and (1-21) µg.ml -1 with molar absorptivity (Є) = (7.768x10 5 , 9.3575x10 5 ) L.mol -1.cm -1 and a detection limit of (0.275-0.14) µg.ml -1 obtained respectively. The precision and accuracy were obtained to be R.S.D%=(0.9-0.467)%,Re%=(99.1-98.2-)% and E rel %= (-1.8 -0.9)%.The method is successfully employed for the determination of iron(III) in Pharmaceutical preparations (Anemia drugs). The most important interferences were due to Ni(II), Zn(II), Co(II), Cd(II), Cu(II) and Hg(II) and suitable masking agents were used.

Analytical and Biological Evaluation of Chromium Complex with Organic Detector NTADBrP: Stability, Calibration, and Inhibition Studies

“…The absorbance was plotted against the concentration of chromium ion in units of ppm to find the calibration curve for the ternary chromium ion under optimal conditions. It is clear from the results and through Table 1 that this method used has high sensitivity and can be used to estimate the triple chromium ion within low concentrations [35]. Figure 10 shows the linearity of the calibration curve.…”

Spectrophotometric Determination of Cobalt(II) and Lead(II) Using (1,5-Dimethyl-2-Phenyl-4-((2,3,4-Trihydroxy Phenyl) Diazenyl)-1H-Pyrazol-3(2H)-One) as Organic Reagent: Using It as Antimicrobial and Antioxidants

“…In this study, the heterocyclic azo dyes were synthesized and proposed as a highly sensitive chromogenic reagent for the determination of several metal ions [3,4]. The chemical compound (1,5-dimethyl-2-phenyl-4-((2,3,4-trihydroxy phenyl) diazenyl)-1H-pyrazol-3(2H)-one) was prepared [5] and used as organic reagent and antioxidant compound in this study.…”

Synthesis, Spectral, Thermal and Biological Studies of Some Metal Complexes Derived from Heterocyclic Mono Azo Dye Ligand 2'[(2'-Hydroxy-4-methyl phenyl)azo]imidazole

“…Azo imidazole dyes have enormous applications in different fields such as polymerization [1], textile [2], leather paper, paint, wood, silk, rubber, plastics, cosmetics operations and coating industries as a dyeing agent [3][4][5][6]. It is also used in the pharmaceutical and food industries as a colouring agent [7].…”