Synergistic liquid–liquid extractive spectrophotometric determination of gold(III) using 1-(2′,4′-dinitro aminophenyl)-4,4,6-trimethyl-1,4-dihydropyrimidine-2-thiol

Kamble, Ganesh S.; Kolekar, Sanjay S.; Han, Sang Woo; Anuse, Mansing A.

doi:10.1016/j.talanta.2010.02.002

Cited by 37 publications

(23 citation statements)

References 19 publications

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“…The results of analysis are given in Table. www.wjpps.com volume. The metal ions were determined by reported standard methods [24][25][26][27][28] (Table 8).…”

Section: Determination Of Bismuth(iii) In Alloy Samplesmentioning

confidence: 99%

A Novel Simple, Rapid, Cost Effective and Selective Extractive Spectrophotometric Method for the Determination of Bismuth(iii) From Environmental, Pharmaceutical Samples and Synthetic Mixtures.

Barache¹

2017

WJPPS

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In the present investigation, simple, rapid, selective and sensitive extractive spectrophotometric method has been developed for the and short analytical time.KEYWORDS: Alloy samples, bismuth(III), CBIMMT, Extractive spectrophotometric determination, pharmaceutical samples. INTRODUCTIONBismuth is a one of the most common element in the environment due to its consumption for a variety of purposes. It has two main oxidation states as bismuth(III) and bismuth(V).[1] Out of these, pentavalent state of bismuth is thermodynamically unstable while trivalent state of bismuth is stable. [2] In the earth crust, the existence of bismuth is about 8.0µg kg -1 and 0.2 µg L -1 in the sea. Bismuth has many applications in variety of fields including pharmaceuticals such as antacids, antiseptic, antibacterial, anti-ulcer, anti-HIV and radio therapeutic agents and ulcer. [3] It is widely used in cosmetics such as hair dyes and topical dermatological creams [4][5] as a reagent for purification of sugar [6] , as an additive in metallurgical operations, in alloys of some semiconductors and in the preparation and recycling of uranium nuclear fuels. [7] In recent days, Bi 2 Te 3 is widely used as a cooling substance and for low temperature thermoelectrical power generation. Bismuth containing pharmaceuticals have long been used for the healing some microbial infections, gastro-intestinal track disorder as indigestion, nausea and heartburn. Bismuth in the form of its sub carbonates and sub galletes are also useful for the cure of diarrhea, dysentery. [8][9] In addition to these useful applications, a number of toxic effects are also observed due to bismuth and its compounds like neurotoxic, nephrotoxic, osteoarthrapathy, kindey damhage symptoms, nephropth and hepatitis. Thus nowadays, enormous attention has been focused towards the quantitative determination of bismuth species in some matrices such as sea water samples, pharmaceuticals, ores, soils.Literature survey revealed that there are several analytical reagents has been synthesized for spectrophotometric determination of bismuth(III) on the basis of complexation reaction. World Journal of Pharmacy and Pharmaceutical SciencesHowever, these reagents have been criticized demerits like few showed maximum absorbance in UV region, some requires heating for complexation, some requires use of surfactants, more equilibration time, prolonged standing time to develop a maximum absorptivity of the species, low sensitivity and also lack of selectivity (Table 1). [10][11][12][13][14][15][16][17] Regarding to solvent extraction technique, new methods are developed for the determination of traces of bismuth(III) like solid phase extraction (SPE) [18] , dispersive liquid-liquid micro extraction (DLLME) [19] , cloud point extraction (CPE) [20] , solidified floating organic drop microextraction (SFODME).[21] However these methods also suffer from several demerits.SPE and DLLME microextraction methods are more complex, time consuming and requires multi-step for preconcentration of analytes...

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“…The results of analysis are given in Table. www.wjpps.com volume. The metal ions were determined by reported standard methods [24][25][26][27][28] (Table 8).…”

Section: Determination Of Bismuth(iii) In Alloy Samplesmentioning

confidence: 99%

A Novel Simple, Rapid, Cost Effective and Selective Extractive Spectrophotometric Method for the Determination of Bismuth(iii) From Environmental, Pharmaceutical Samples and Synthetic Mixtures.

Barache¹

2017

WJPPS

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“…Orange-red colored complex [37] (Measured at λ max 445 nm) (Recovery, 99.9 %) Scheme 1. Sequential separation of copper(II) from gold(III).…”

Section: Organic Phase Au(iii)-2'4'-dinitro Aptpt-pyridinementioning

confidence: 99%

“…Pyrimidine-2-thiols are also known as cyclic-thio-ureas which constitute a remarkably versatile class of analytically useful reagents which can readily be synthesized from inexpensive starting materials. The mercaptopyrimidines act as chelating agents for metal ions by binding through 'S' atoms [34], sometimes 'N' [35] or possibly both jointly [36,37]. In most of the cases they behave as unidentate ligand by complexation through 'S' atoms of the thiol groups.…”

Section: Introductionmentioning

confidence: 99%

“…In most of the cases they behave as unidentate ligand by complexation through 'S' atoms of the thiol groups. We have reported from this laboratory, the derivatives of pyrimidine-2-thiol have been successfully employed for the extractive spectrophotometric determination of platinum group metals [38], gold(III) [37,39,40], tellurium(IV) [41,42], bismuth(III) [43], selenium(IV) [44]. A major feature of these reagents was their high selectivity for transition and non transition metal ions.…”

Section: Introductionmentioning

confidence: 99%

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Synergistic extraction and spectrophotometric determination of copper(II) using 1-(2′,4′-dinitro aminophenyl)-4,4,6-trimethyl-1,4-dihydropyrimidine-2-thiol: Analysis of alloys, pharmaceuticals and biological samples

Kamble¹,

Kolekar²,

Anuse³

2011

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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“…(Bulut et al, 2011) are the most commonly used techniques in the determination of gold at low levels. UV-Vis spectrophotometric methods ( (Chen et al, 2006), (Kamble et al, 2010)) are remarkable for their simplicity and versatility. Other sensitive techniques such as neutron activation analysis (NAA) (Nat et al, 2004) or total reflection X-ray fluorescence spectrometry (TXRF) (Messerschmidt et al, 2000) are less often applied in gold determination due to the complexity and cost of the required instrumentation.…”

Section: Introductionmentioning

confidence: 99%

Kinetic determination of gold (III) based on its inhibitory effect in oxidizing homogenous reaction system

Micić¹,

Mitić²,

Simonović³

et al. 2016

Univ Thought

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Synergistic liquid–liquid extractive spectrophotometric determination of gold(III) using 1-(2′,4′-dinitro aminophenyl)-4,4,6-trimethyl-1,4-dihydropyrimidine-2-thiol

Cited by 37 publications

References 19 publications

A Novel Simple, Rapid, Cost Effective and Selective Extractive Spectrophotometric Method for the Determination of Bismuth(iii) From Environmental, Pharmaceutical Samples and Synthetic Mixtures.

A Novel Simple, Rapid, Cost Effective and Selective Extractive Spectrophotometric Method for the Determination of Bismuth(iii) From Environmental, Pharmaceutical Samples and Synthetic Mixtures.

Synergistic extraction and spectrophotometric determination of copper(II) using 1-(2′,4′-dinitro aminophenyl)-4,4,6-trimethyl-1,4-dihydropyrimidine-2-thiol: Analysis of alloys, pharmaceuticals and biological samples

Kinetic determination of gold (III) based on its inhibitory effect in oxidizing homogenous reaction system

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