Ion-exchange separation and spectrophotometric determination of traces of gold

Kuroda, Rokurô; Yoshikuni, Nobutaka

doi:10.1007/bf01218202

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Crc Critical Reviews In Analytical Chemistry1

Racheva Et Al1

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2017

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Cited by 15 publications

(4 citation statements)

References 8 publications

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“…method is more sensitive than other methods [39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56][57][58], that based on spectrophotometry (Table 2).…”

Section: Tablementioning

confidence: 99%

Utility of solid phase extraction for spectrophotometric determination of gold in water, jewel and ore samples

Amin

2010

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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“…method is more sensitive than other methods [39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56][57][58], that based on spectrophotometry (Table 2).…”

Section: Tablementioning

confidence: 99%

Utility of solid phase extraction for spectrophotometric determination of gold in water, jewel and ore samples

Amin

2010

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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“…Au 3t is stripped by elution with 40 me of 1 M hydrochloric acid. 70 If acetic acid is mixed in the sample solution, an initial concentration of 0.5 M HC1 can be tolerated. Such a mixture of acetic acid/0.5 M hydrochloric acid (9:1) was used in the analysis of anode slime for gold.…”

Section: Crc Critical Reviews In Analytical Chemistrymentioning

confidence: 99%

Preparation of Chemically Modified Cellulose Exchangers and their use for the Preconcentration of Trace Elements

Wegscheider¹,

Knapp²,

Leyden³

1981

C R C Critical Reviews in Analytical Chemistry

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“…[27][28][29][30] Nitron is an important reagent for the determination of nitrates, perchlorates, borates, or traces of gold. [31][32][33][34] The liquid-liquid extraction is a part of the chemistry of the solutions and the coordination compounds. It is applied to study the processes of complex formation and the extraction equilibria.…”

Section: Racheva Et Almentioning

confidence: 99%

Study on the Equilibria of the Complex Formation of the Ion-pair of Germanium(IV) with 4-Nitrocatechol and 1,4-Diphenyl-3-(phenylamino)-1H-1,2,4-triazole

Racheva

Stojnova

Divarova

et al. 2017

ACSi

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The complex formation of the ion-pair formed between the anionic chelate of Ge(IV)-4-nitrocatechol (4-NC) and the cation of 1,4-diphenyl-3-(phenylamino)-1H-1,2,4-triazole (Nitron, Nt) in the liquid-liquid extraction system Ge(IV)-4-NC-Nt-H 2 O-CHCl 3 was studied by spectrophotometry. The optimum extraction-spectrophotometric conditions for the complex formation were established. The validity of Beer's law was checked and some analytical characteristics of the system were calculated. The effect of co-existing ions and reagents on the process of complex formation was investigated. The association process in aqueous phase and the extraction equilibria were studied and quantitatively characterized. The following key constants of the processes were calculated: association constant, distribution constant, extraction constant and recovery factor. The molar ratio of the reagents was determined by independent methods. A reaction scheme and a general formula of the complex were suggested.

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Ion-exchange separation and spectrophotometric determination of traces of gold

Cited by 15 publications

References 8 publications

Utility of solid phase extraction for spectrophotometric determination of gold in water, jewel and ore samples

Utility of solid phase extraction for spectrophotometric determination of gold in water, jewel and ore samples

Preparation of Chemically Modified Cellulose Exchangers and their use for the Preconcentration of Trace Elements

Study on the Equilibria of the Complex Formation of the Ion-pair of Germanium(IV) with 4-Nitrocatechol and 1,4-Diphenyl-3-(phenylamino)-1H-1,2,4-triazole

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