A Highly Selective and Simple Spectrophotometric Method for the Determination of Zinc at Nano-trace Levels in Some Environmental, Biological, Food, and Pharmaceutical Samples Using 2-hydroxynaphthaldehydebenzoylhydrazone

Ahmed, M. Jamaluddin; Hossain, Faisal; Mahmood, Esham

doi:10.5155/eurjchem.11.2.160-167.1987

Cited by 3 publications

(4 citation statements)

References 15 publications

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“…To date, for the spectrophotometric detection and quantification of gallium, 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol (5-Br-PADAP) [41] ,1-(2-benzothiazolylazo)-2hydroxy-3-naphthoic acid (BTAHN) [42], Chrome Azurol S (CAS) [43], 2-Hydroxynaphthaldehydebenzoylhydrazone (OHNABH) [44], Bipyridylglyoxal bis(4phenyl-3-thiosemicarbazone (BGPT) [45], 2-hydroxy-3-methoxy benzaldehyde isonicotinoylhydrazone (HMBAINH) [46], rutine [47] and so on have been reported as chromogenic reagents for the determination of Ga(III). A comparison of this suggested work with those of other Ga(III) assay protocols introduced in previous literature is exhibited in Table 2.…”

Section: Comparison With Other Colorimetric Methodsmentioning

confidence: 99%

Spectrophotometric and colorimetric determination of gallium (III) with p-aminohippu- ric acid-functionalized citrate capped gold nanoparticles

Avan¹

2021

Turk J Chem

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A new technique for sensing Ga(III) concentration based on polyvinyl alcohol-citrate capped gold nanoparticle-p-aminohippuric acid hybrid (or three-layer core-shell configurations) have been demonstrated. The p-aminohippuric acid capped citrate-gold nanoparticles were comfortably agglomerated in the presence of Ga(III) and the color of the reaction quickly turned from red to violet or blue. Under the detection conditions, a good linear relationship was ideally obtained between the ratio of the absorbance intensity at 620 nm to that at 520 nm (A 620 /A 520 ). The linear response range, the detection and quantification limit was 34.9-418.3 µg/L and 7.6 µg/L and 25 µg/L, respectively. To reflect the accuracy, the developed sensing approach was evaluated 2 against certified reference materials (TMDA 51.3 fortified water and TMDA 28.3 fortified water). This colorimetric strategy was displayed excellent selectivity for Ga(III) over other examined ions. Additionally, the colorimetric method was properly used to detect the concentrations of Ga in tap water and certified reference material samples with recoveries ranging from 95.4 to 102.0%, displaying that the colorimetric procedure could be safely used for a realistic application.

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Section: Comparison With Other Colorimetric Methodsmentioning

confidence: 99%

Spectrophotometric and colorimetric determination of gallium (III) with p-aminohippu- ric acid-functionalized citrate capped gold nanoparticles

Avan¹

2021

Turk J Chem

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“…Ten tablets and capsules were weighed accurately and ground into a fine powder. Tablet and capsule powder equivalent to 200 mg was accurately weighted and taken to a beaker and digested according to Ahmed method (Ahmed, et al, 2010).10 mL of concentrated nitric acid was added and to dryness, 10 ml of 20% (v/v) of sulfuric acid solution added. The volume was became 2.5 mL by heating on a hotplate and cooled to room temperature.…”

Section: Procedures For Commercial Samplesmentioning

confidence: 99%

“…The solution was neutralized with diluted ammonium solution, the resulting solution filtrated and transferred quantitatively to 50 mL volumetric flask and filled with deionized water to the mark. Humulin N Vial (5 mL, 100 IU/ml) of Lilly Pharmaceuticals, shaken well insulin vial, 5.0 mL taken, digested according to Ahmed method (Ahmed, et al, 2010), the resulting solution transferred quantitatively to 25 mL volumetric flask and filled with deionized water to the mark.…”

Section: Procedures For Commercial Samplesmentioning

confidence: 99%

Spectrophotometric Determination of Zinc in Pharmaceutical Medication Samples Using 8-Hydroxyquinoline Reagent

Najim¹,

Hameed²,

Al-Shakban³

et al. 2019

IJC

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Simple, rapid, cheap and sensitive spectrophotometric method has been described for the determination of zinc in pharmaceutical samples. The method is based on the formation of zinc- 8-Hydroxy quinoline chelate, the maximum absorption (lmax) at 384 nm. The method obeyed Beer's law in the range 1-5 mg/mL and the corresponding molar absorptivity value is 0.01578 ´ 103 L.mol-1.cm-1. The Sandell sensitivity values of limits of detection (LOD) and quantification (LOQ) was 0.381mg/mL and 1.156 mg/mL respectively. The recovery percentage of zinc was found 98.00 %, 98.96 %,99.91%, 97.50%, 98.5% and 99.30 % for (Capsule-13 mg), (Tablet-20 mg), (Tablet-40 mg),(Capsule-50 mg), (Capsule-50 mg) and (insulin vial-0.025 mg) respectively. All variable parameters has been optimized according to ICH guidelines. The limiting concentrations of some cations for interference by Mn(II), Fe(II), Co(II), Ni(II), Cu(II), Cd(II),Sn(II) ,Pb(II), Mg(II), Ca(II) and Ba(II) are reported. The method accuracy was established by comparison with conventional flame atomic absorption spectrometric method by using t-test, ttab.= 2.571, tcal. =0.3231 at 95% confidence level, indicating the absence of systematic errors.

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“…Ahmed et al 16 has recently reported a method for the determination of iron in various samples including some environmental water samples.…”

Section: N C C Nmentioning

confidence: 99%

Determination of Trace Amount of Iron with as-Triazine Containing Ferroin- Functional Group

Hossain¹,

Islam

Begum

et al. 2019

Dhaka Univ. J. Sci.

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The as-triazines containing iron(II) methine chromophoric group; 3-(2-pyridyl)-5,6-diphenyl-as-triazine (PDT), and 3-(2- pyridyl)-5,6-bis(p-methoxyphenyl)-as-triazine (PBMPT) have been prepared from commercially available relatively cheaper reagents. The absorptiometric characteristics of the iron(II) complexes with PDT and PBMPT have been re-evaluated. The interference of copper ion on the determination of iron with these selective reagents and its masking has also been studied. The application of these spectrophotometric reagents for determination of iron in water samples based on the formation of extractable PDT-iron(II) and PBMPT-iron(II) complexes in chloroform medium has been described. Standard addition technique was used to verify the reliability of the method. Repeated determinations gave results with a very small standard deviation. Dhaka Univ. J. Sci. 67(2): 145-150, 2019 (July)

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A Highly Selective and Simple Spectrophotometric Method for the Determination of Zinc at Nano-trace Levels in Some Environmental, Biological, Food, and Pharmaceutical Samples Using 2-hydroxynaphthaldehydebenzoylhydrazone

Cited by 3 publications

References 15 publications

Spectrophotometric and colorimetric determination of gallium (III) with p-aminohippu- ric acid-functionalized citrate capped gold nanoparticles

Spectrophotometric and colorimetric determination of gallium (III) with p-aminohippu- ric acid-functionalized citrate capped gold nanoparticles

Spectrophotometric Determination of Zinc in Pharmaceutical Medication Samples Using 8-Hydroxyquinoline Reagent

Determination of Trace Amount of Iron with as-Triazine Containing Ferroin- Functional Group

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