Atomic absorption, atomic emission, and flame emission spectrometry

Jackson, Kenneth W.; Qiao, Huancheng.

doi:10.1021/ac00036a003

Cited by 25 publications

(5 citation statements)

References 250 publications

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“…This pre-pyrolysis step was found necessary when using palladium as chemical modifier with citric acid as a reducing agent. It ensures the presence of reduced palladium at the very early stages of the temperature program [ 33 , 34 ]. It was also reported that the introduction of a pre-pyrolysis step in the temperature program helps the removal of smoke, especially when analysing matrices rich in organic matter [ 30 ].…”

Section: Resultsmentioning

confidence: 99%

Graphite furnace atomic absorption spectrometry as a routine method for the quantification of beryllium in blood and serum

Stephan

Fournier

Brousseau

et al. 2008

Chemistry Central Journal

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Background: A routine method for the quantification of beryllium in biological fluids is essential for the development of a chelation therapy for Chronic Beryllium Disease (CBD). We describe a procedure for the direct determination of beryllium in undigested micro quantities of human blood and serum using graphite furnace atomic absorption spectrometry. Blood and serum samples are prepared respectively by a simple 8-fold and 5-fold dilution with a Nash Reagent. Three experimental setups are compared: using no modifier, using magnesium nitrate and using palladium/ citric acid as chemical modifiers.

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Section: Resultsmentioning

confidence: 99%

Graphite furnace atomic absorption spectrometry as a routine method for the quantification of beryllium in blood and serum

Stephan

Fournier

Brousseau

et al. 2008

Chemistry Central Journal

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“…The effect of [Fe(CN) 6 ] 4-concentration on Ag(I) catalyzed abstraction of cyanide ion by phenylhydrazine was studied in the range of 2.0 9 10 -4 -1.5 9 10 -2 mol dm -3 , keeping concentration of phenylhydrazine and Ag + fixed at 2.0 9 10 -3 mol dm -3 and 1.0 9 10 -5 mol dm -3 , respectively. The plot of log (initial rate) versus log [Fe(CN) 6 4-] is linear initially and further tends towards zero order at lower concentration of [Fe(CN) 6 ] 4- (Fig. 3).…”

Section: Effect Of Phmentioning

confidence: 95%

“…Extremely low concentrations of Ag(I) are present in various complex samples like drinking water (5 lg cm -3 ), soil, rock, coal fly ash, cigarette smoke, alloys, plants, sea water, etc. [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].…”

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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“…Therefore, in view of analytical-viewpoint, an economical method development having high precision, sensitivity and selectivity is extremely important for the quantitative determination of silver when it is available at trace amounts on the complex matrices. Although this determination is generally carried out with cost effective-analytical methods such as ICP-AES [5,6], ICP-MS [7][8][9] and ET-AAS [10], these methods are suffered from the interferences at different types and several complex analysis and data-processing steps [11,12]. It can partly be avoided from these drawbacks by using the pre-concentration processes like liquid-liquid and solid phase extraction [13,14].…”

Section: Introductionmentioning

confidence: 99%

Development of a New Analytical Methodology Based on the Catalytic Effect of Ag(i) in a New Fuchsin-Peroxodisulfate-1,10-Phenantroline System: Application to the Determination of Trace Amounts of Silver

Gürkan

Ulusoy

2014

J. Chil. Chem. Soc.

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A simple, rapid and sensitive kinetic spectrophotometric method is proposed for the determination of trace amounts of silver ion in the concentration ranges of 2-20 and 20-50 µg L -1 . The proposed method is based on the catalytic effect of Ag(I) on the oxidation reaction of new fuchsin by potassium peroxodisulfate in the presence of 1,10-phenantroline as an activator at pH:5.0. The reaction is followed spectrophotometrically by measuring the change in absorbance at 547 nm using the initial rate method during the indicator reaction of 5 minute. The reaction rate variables like pH, reagent and activator concentrations and effect of reaction time and temperature were optimized in order to achieve the maximum analytical sensitivity. The experimental and theoretical detection limits of the developed method were found as 0.475 µg L -1 and 1.50 µg L -1 , respectively. The relative standard deviations for five replicate measurements of 15 and 35 µg L -1 of Ag(I) were 5.27% and 3.32%, respectively. The effect of different diverse ions on the determination of silver was studied and found to be free from most interference. The method was successfully applied to the determination of silver in photographic solutions and different real water samples such as tap water, pond water and natural spring waters.

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Atomic absorption, atomic emission, and flame emission spectrometry

Cited by 25 publications

References 250 publications

Graphite furnace atomic absorption spectrometry as a routine method for the quantification of beryllium in blood and serum

Graphite furnace atomic absorption spectrometry as a routine method for the quantification of beryllium in blood and serum

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

Development of a New Analytical Methodology Based on the Catalytic Effect of Ag(i) in a New Fuchsin-Peroxodisulfate-1,10-Phenantroline System: Application to the Determination of Trace Amounts of Silver

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