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flotation spectrophotometric determination

Flotation-spectrophotometric determination of mercury

DOI: 10.2116/analsci.20.1449 Abstract This paper describes a simple and highly selective method for separation, preconcentration and spectrophotometric determination of trace amounts of

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Floatation-spectrophotometric Determination of Thorium,

Jan 24, 2011  A novel and sensitive floatation-spectrophotometric method is presented for determination of trace amounts of thorium in water samples. The method is based on the

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Flotation-Spectrophotometric Determination of

Dec 23, 1988  The separated and washed compound readily dissolves in acetone, giving an intensely coloured solution which forms the basis for a sensitive spectrophotometric

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[Flotation spectrophotometric determination of platinum

The flotation spectrophotometric method for the determination of platinum with isochromatic dye ion-pair is described. Rhodamine 6G (R6G) was produced and entered into aqueous

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Flotation-Spectrophotometric Determination of Trace

Feb 19, 1995  A flotation-spectrophotometric method for the separation and determination of Fe (III) in fresh and natural water samples has been developed. The method is based on the

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Flotation-spectrophotometric determination of mercury in water

This paper describes a simple and highly selective method for separation, preconcentration and spectrophotometric determination of trace amounts of mercury. The method is based on

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Flotation-Spectrophotometric Determination of Traces of

Jan 01, 2010  PDF A simple, fast, reproducible and sensitive method for the flotation- spectrophotometric determination of Pb2+ is reported. The method is based on... Find,

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Flotation-Spectrophotometric Method for the Determination

Abstract: A simple, fast, reproducible and sensitive method for the flotation- spectrophotometric determination of Al 3+ is reported. The apparent molar absorptivity ( ε) of the ion associate

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Flotation Spectrophotometric Determination of Aluminium with

Feb 27, 2008  Aluminium was determined in a weakly alkaline medium by reaction with alizarin at trace level. Flotation of the complex was carried out with heptane, followed by dissolution in

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Flotation-spectrophotometric determination of osmium

Dec 01, 1981  A sensitive flotation-spectrophotometric method for the determination of osmium, based on the ion associate formed by the anionic thiocyanate osmium c

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Flotation-Spectrophotometric Determination of Trace Iron(III)

Feb 19, 1995  A flotation-spectrophotometric method for the separation and determination of Fe(III) in fresh and natural water samples has been developed. The method is based on the colored complex which is formed between Fe(III) and 2-carboethoxy-l,3-indandione sodium salt (CEIDNa). The colored 1:3 (Fe: reagent) complex is quantitatively floated with oleic acid (HOL)

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[Flotation spectrophotometric determination of platinum on

The flotation spectrophotometric method for the determination of platinum with isochromatic dye ion-pair is described. Rhodamine 6G (R6G) was produced and entered into aqueous phase when pH = 5.5 buffer solution was added to the Pt (SnCl3)5 (R6G)3 by isopropyl ether flotation. And then R6G. TBF was

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Flotation-Spectrophotometric Determination of Traces of Lead

Jan 01, 2010  PDF A simple, fast, reproducible and sensitive method for the flotation- spectrophotometric determination of Pb2+ is reported. The method is based on... Find, read and cite all the research ...

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Flotation-spectrophotometric determination of mercury in

This paper describes a simple and highly selective method for separation, preconcentration and spectrophotometric determination of trace amounts of mercury. The method is based on the flotation of an ion-associate of HgI4(2-) and ferroin between aqueous and n-heptane interface at pH 5. The ion-associate was then separated and dissolved in acetonitrile to measure its

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Flotation-spectrophotometric determination of ruthenium in

Flotation-Spectrophotometric Determination of Ruthenium in the Ru(lV)-Chloride-Rhodamine 6G-Toluene System. The reduction of RuO 4 in hydrochloric acid has been examined. A sensitive flotation-spectrophotometric method of the determination of ruthenium based on the ion associate formed by the anionic chloride complex of ruthenium RuCl 6 2− with the basic dye

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[PDF] Flotation and Enhanced Spectrophotometric Determination

A green and simple technique for the separation via flotation and spectrophotometric detection of U(VI) in water and real ore samples is presented in this research study in which the heterocyclic azo dye 4-(2pyridyl azo) resorcinol (NaPAR) is used to preconcentrate the uranyl(VI) ions to form a reddish complex in the aqueous solution in the pH range 5.0.-6.0. The oleic acid (HOL)

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[Flotation spectrophotometric determination of copper on

The flotation was dissolved in ethanol [Flotation spectrophotometric determination of copper on isochromatic dye ion pair with crystal violet and bromopnenol blue] Guang Pu Xue Yu Guang Pu Fen Xi. 1999 Feb;19(1):102-3. [Article in Chinese] Authors B Liu 1 ...

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(PDF) Flotation and enhanced Spectrophotometric Determination

Flotation and enhanced Spectrophotometric Determination of uranium (VI) in environmental samples

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Flotation-Spectrophotometric Method for the

Different preconcentration-spectrophotometric 10-16 and electrochemical 17 methods are used for trace quantitative determination of Al 3+. Present paper shows a flotation-spectrophotometric method for (Al 3+-XO)-CTA + ternary ion-associate in to the interface between aqueous and n-hexane phase by flotation method. The effect of standing time,

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A Selective Flotation-Spectrophotometric Method for the Determination

The quantitative flotation of the complex was possible in the pH range of 9-12. The method is simple and free from the interference of all cations and anions and has a wide linear range. The procedure was successfully applied to the determination of trace amounts of nickel in well water and waste water in coating plant.

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1,1-SPECTROPHOTOMETRIC DETERMINATION OF TRACE

The method allowed the determination of 1,1-DIMETHYLHYDRAZINE at concentration between 0.40 - 6.0 mg.mL-1 with detection Limit (DL) of 0.1 mg.mL-1 and relative standard deviation of 1.45%, respectively. Under working conditions, the proposed method was successfully applied to the determination of 1,1-DIMETHYLHYDRAZINE in water samples.

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Flotation Spectrophotometric Determination of Aluminium with

Feb 27, 2008  Aluminium was determined in a weakly alkaline medium by reaction with alizarin at trace level. Flotation of the complex was carried out with heptane, followed by dissolution in N, N-dimethylformamide (DMF) for subsequent spectrophotometric determination. The molar absorptivity was 2.92×10 5 mol − cm − at 518 run. Beer's law was obeyed in ...

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Selective Flotation-Spectrophotometric Determination of Trace

Jun 01, 2001  Request PDF Selective Flotation-Spectrophotometric Determination of Trace Copper(II) in Natural Waters, Human Blood and Drug Samples Using Phenanthraquinone Monophenylthiosemicarbazone. Copper ...

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Flow injection spectrophotometric determination total

12 小时前  And then, an automated flow injection spectrophotometric system for the determination of TAC based on the peroxidase catalytic performance of Co/N-CDs. The proposed strategy accurately controls the Co/N-CDs/GA/H 2 O 2 catalytic reaction process to improve analysis accuracy compared with manual operation ( Scheme 1 ).

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Flotation-Spectrophotometric Determination of Trace Iron(III)

Feb 19, 1995  A flotation-spectrophotometric method for the separation and determination of Fe(III) in fresh and natural water samples has been developed. The method is based on the colored complex which is formed between Fe(III) and 2-carboethoxy-l,3-indandione sodium salt (CEIDNa). The colored 1:3 (Fe: reagent) complex is quantitatively floated with oleic acid (HOL)

get price

[Flotation spectrophotometric determination of platinum on

The flotation spectrophotometric method for the determination of platinum with isochromatic dye ion-pair is described. Rhodamine 6G (R6G) was produced and entered into aqueous phase when pH = 5.5 buffer solution was added to the Pt (SnCl3)5 (R6G)3 by isopropyl ether flotation. And then R6G. TBF was

get price

Flotation-Spectrophotometric Determination of Traces of Lead

Jan 01, 2010  PDF A simple, fast, reproducible and sensitive method for the flotation- spectrophotometric determination of Pb2+ is reported. The method is based on... Find, read and cite all the research ...

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Flotation-spectrophotometric determination of mercury in

This paper describes a simple and highly selective method for separation, preconcentration and spectrophotometric determination of trace amounts of mercury. The method is based on the flotation of an ion-associate of HgI4(2-) and ferroin between aqueous and n-heptane interface at pH 5. The ion-associate was then separated and dissolved in acetonitrile to measure its

get price

Flotation-spectrophotometric determination of ruthenium in

Flotation-Spectrophotometric Determination of Ruthenium in the Ru(lV)-Chloride-Rhodamine 6G-Toluene System. The reduction of RuO 4 in hydrochloric acid has been examined. A sensitive flotation-spectrophotometric method of the determination of ruthenium based on the ion associate formed by the anionic chloride complex of ruthenium RuCl 6 2− with the basic dye

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Flotation-Spectrophotometric Method for Separation and Determination

Dec 31, 2012  Summary: A flotation-spectrophotometric method for the determination of Cu2+ has been developed. The flotation process is based on the formation of a ternary ion-associate between Cu2+, methylthymol blue (MTB) and cetyltrimethylammonium bromide (CTAB) which is floated at the interface of aqueous phase and n-hexane by shaking in a separating

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[PDF] Flotation and Enhanced Spectrophotometric Determination

A green and simple technique for the separation via flotation and spectrophotometric detection of U(VI) in water and real ore samples is presented in this research study in which the heterocyclic azo dye 4-(2pyridyl azo) resorcinol (NaPAR) is used to preconcentrate the uranyl(VI) ions to form a reddish complex in the aqueous solution in the pH range 5.0.-6.0. The oleic acid (HOL)

get price

Flotation-Spectrophotometric Method for the

Different preconcentration-spectrophotometric 10-16 and electrochemical 17 methods are used for trace quantitative determination of Al 3+. Present paper shows a flotation-spectrophotometric method for (Al 3+-XO)-CTA + ternary ion-associate in to the interface between aqueous and n-hexane phase by flotation method. The effect of standing time,

get price

A Selective Flotation-Spectrophotometric Method for the Determination

The quantitative flotation of the complex was possible in the pH range of 9-12. The method is simple and free from the interference of all cations and anions and has a wide linear range. The procedure was successfully applied to the determination of trace amounts of nickel in well water and waste water in coating plant.

get price

1,1-SPECTROPHOTOMETRIC DETERMINATION OF TRACE

The method allowed the determination of 1,1-DIMETHYLHYDRAZINE at concentration between 0.40 - 6.0 mg.mL-1 with detection Limit (DL) of 0.1 mg.mL-1 and relative standard deviation of 1.45%, respectively. Under working conditions, the proposed method was successfully applied to the determination of 1,1-DIMETHYLHYDRAZINE in water samples.

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Selective flotation-separation and spectrophotometric determination

A simple, selective and sensitive procedure is described for the preconcentration by flotation followed by spectrophotometric determination of trace amounts of Cd(II). Cadmium forms an intense red 1:2 complex with phenanthraquinone monophenylthiosemicarbazone (PPT) at pH > or = 6. The colored Cd-

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Flotation Spectrophotometric Determination of Aluminium with

Feb 27, 2008  Aluminium was determined in a weakly alkaline medium by reaction with alizarin at trace level. Flotation of the complex was carried out with heptane, followed by dissolution in N, N-dimethylformamide (DMF) for subsequent spectrophotometric determination. The molar absorptivity was 2.92×10 5 mol − cm − at 518 run. Beer's law was obeyed in ...

get price

Selective Flotation-Spectrophotometric Determination of Trace

Jun 01, 2001  Request PDF Selective Flotation-Spectrophotometric Determination of Trace Copper(II) in Natural Waters, Human Blood and Drug Samples Using Phenanthraquinone Monophenylthiosemicarbazone. Copper ...

get price

Flow injection spectrophotometric determination total

12 小时前  And then, an automated flow injection spectrophotometric system for the determination of TAC based on the peroxidase catalytic performance of Co/N-CDs. The proposed strategy accurately controls the Co/N-CDs/GA/H 2 O 2 catalytic reaction process to improve analysis accuracy compared with manual operation ( Scheme 1 ).

get price