The Determination of Silver in Photographic Emulsionsby Discontinuous Flow Analysis

Dole, A. J.; Cardwell, Terence J.; Cattrall, Robert W.; Giacomo, R. Di; Rodrigue, C. G.; Scollary, Geoffrey R.

doi:10.1002/(sici)1521-4109(199801)10:1<21::aid-elan21>3.0.co;2-9

Cited by 13 publications

(5 citation statements)

References 17 publications

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“…This mode of flow analysis has been reviewed [145] with an emphasis on flow titrations, standard addition methods and atomic absorption spectrometric detection applied to industrial process control. Another application was the determination of silver in photographic emulsions, involving complexation of the silver bromide with cyanide followed by titration with sulphide [146].…”

Section: The Discontinuous Flow Analysermentioning

confidence: 99%

Flow Analysers

Zagatto

2012

Flow Analysis With Spectrophotometric and Luminometric Detection

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Section: The Discontinuous Flow Analysermentioning

confidence: 99%

Flow Analysers

Zagatto

2012

Flow Analysis With Spectrophotometric and Luminometric Detection

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“…[6]. The traces of Ag(I) in different media can be determined by various analytical methods, such as atomic absorption spectrometry [7,8], fluorometry [9], flow injection analysis [10], and electro-analysis [11]. These instruments are highly expensive and their day-to-day maintenance cost is high.…”

Section: Introductionmentioning

confidence: 99%

Kinetic determination of silver at trace level based on its catalytic effect on a ligand substitution reaction

Naik

Tiwari

Singh

et al. 2008

Transition Met Chem

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It is observed that Ag(I) catalyzes the rate of substitution of phenylhydrazine (PhNHNH 2 ) into hexacyanoferrate(II), producing a cherry red colored complex, [Fe(CN) 5 PhNHNH 2 ] 3-. The reaction was monitored at 488 nm leading to the formation of the complex under the conditions: [Fe(CN) 6 ] 4-(5.0 9 10 -3 mol dm -3 ), PhNHNH 2 (2.0 9 10 -3 mol dm -3 ), temperature (25 ± 0.1°C), pH (2.8 ± 0.02), and ionic strength, I (0.02 mol dm -3 ), (KNO 3 ). Under optimum conditions, absorbance at fixed times (A t ) is linearly related to Ag(I) in the concentration range 10.79-97.08 ng cm -3 , in the presence of several diverse ions. The highest percentage error and relative standard deviations in the entire range of Ag(I) determination are found to be 2.5% and 0.16, with a detection limit of 8.75 ng cm -3 of silver(I). The experimental accuracies expressed in terms of percentage recoveries are in the range of 97.87-102.50. The method was successfully applied for the determination of Ag(I) in a few synthetic samples and found to be in good agreement with those obtained from atomic absorption spectrophotometry (AAS). The validity of the proposed method has also been tested for Ag(I) determination in spiked drinking water samples. The present catalytic kinetic method (CKM) is highly sensitive, selective, reproducible, and inexpensive. A review of recently published catalytic spectrophotometric methods for determination of Ag(I) has also been presented for comparison.

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“…Various methods for the determination of silver at trace quantities have been proposed. They include spectrophotometry, [3][4][5] atomic absorption spectrometry, [6][7][8][9][10] inductively coupled plasma-mass spectrometry, 11 fluorometry, 12 stripping voltammetry, 13 flowinjection analysis, 14 electroanalysis 15,16 and radioisotope dilution. 17 Most of these methods, in spite of their good sensitivities, are very expensive and time consuming in practice; however, potentiometric methods, by using well-tailored ionselective electrodes, have the advantages of selectivity, cheapness and ease of operation.…”

Section: Introductionmentioning

confidence: 99%

Wire-Coated Silver(I) Ion-Selective Electrode Based on 2-Mercaptobenzothiazole (MBT) Ionophore: Application to the Determination of Silver in Real Samples

Golabi

Mohammadi

2003

ANAL. SCI.

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A new wire-coated silver ion-selective electrode with a wider concentration range (10 -7 M -10 -1 M) was developed using 2-mercaptobenzothiazole (MBT) as a neutral ionophore. An optimum mixture of PVC, ionophore, dioctylphtalate (DOP) as a plasticizer and sodium tetraphenylborate (NaTPB) as an ion-pairing agent was used in preparing the coatings. The effect of various parameters, such as the electrode bed nature, coating composition and solution pH, on the efficiency of the electrode is described. It has been shown that platinum acts as a more suitable bed for electrode preparation, and exhibits a slope of 59.5 ± 1 mV over the whole range of studied concentrations. The selectivity coefficient of the electrode towards various interfering cations as well as its reproducibility, response time and lifetime of the electrode were estimated. The developed electrode was successfully used for the determination of trace amounts of silver in human hair and photographic waste as real samples and in the potentiometric titration of halides as an indicator electrode.

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The Determination of Silver in Photographic Emulsionsby Discontinuous Flow Analysis

Cited by 13 publications

References 17 publications

Flow Analysers

Flow Analysers

Kinetic determination of silver at trace level based on its catalytic effect on a ligand substitution reaction

Wire-Coated Silver(I) Ion-Selective Electrode Based on 2-Mercaptobenzothiazole (MBT) Ionophore: Application to the Determination of Silver in Real Samples

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