Separation and preconcentration of trace substances - III. Flotation as a preconcentration technique

Mizuike, Atsushi; Hiraide, Masataka

doi:10.1351/pac198254081555

Cited by 64 publications

(25 citation statements)

References 5 publications

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“…In fact, a surfactant which is of opposite charge to the desired ions or their complex ions is satisfactory. 40 Among the various kinds of anionic surfactants, the highest recovery was achieved by using SDS for all the metal ions. In addition to this effective flotation separation, SDS was chosen for its low toxicological properties and commercial availability in a high pure form and low cost.…”

Section: Influences Of Type and Amount Of Surfactantmentioning

confidence: 98%

Ion‐flotation Separation of Cd(II), Co(II) and Pb(II) Traces Using a New Ligand before Their Flame Atomic Absorption Spectrometric Determinations in Colored Hair and Dryer Agents of Paint

Tavallali

Lalehparvar

Nekoei

et al. 2011

J Chinese Chemical Soc

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A simple, rapid and inexpensive method for separation and preconcentration of some traces of hazardous elements is presented prior to their flame atomic absorption spectrometric determinations. At pH 6.5; cadmium(II), cobalt(II) and lead(II) were separated simultaneously with 1,2-bis((1H-benzo[d]imidazol-2-yl)methoxy)benzene (BBIMB) as a new complexing agent and floated after adding sodium dodecyl sulfate (SDS) as a foaming reagent. The floated layer was then eluted by concentrated nitric acid in methanol and introduced to the flame atomic absorption spectrometer (FAAS). The effects of pH, concentration of BBIMB, type and amount of surfactant as the floating agent, type and amount of eluting agent and influence of foreign ions on the recoveries of the analyte ions were investigated. Also, by using a non-linear curve fitting method the formation constants of Cd(II), Co(II) and Pb(II) complexes were obtained 1.02 × 10 6 , 1.17 × 10 6 and 1.46 × 10 6 , respectively. The detection limits of Cd(II), Co(II) and Pb(II) ions were 1.2, 0.7 and 0.5 mg/L, respectively. The enrichment factors were 45.0, 42.0 and 39.0 for Cd(II), Co(II) and Pb(II) ions, respectively. The proposed procedure was then successfully applied for determination of those heavy metals in colored human hair and dryer agents of paint samples.

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Section: Influences Of Type and Amount Of Surfactantmentioning

confidence: 98%

Ion‐flotation Separation of Cd(II), Co(II) and Pb(II) Traces Using a New Ligand before Their Flame Atomic Absorption Spectrometric Determinations in Colored Hair and Dryer Agents of Paint

Tavallali

Lalehparvar

Nekoei

et al. 2011

J Chinese Chemical Soc

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“…Since the amount of complexing agent is expected to largely affect the flotation separation process, [12][13][14][15][16] the influence of ACDA concentration on the floatability of 2.0 × 10 -6 M of Co 2+ , Cd 2+ , Ni 2+ and Cu 2+ ions was investigated, after adding 6 ml of saturated KNO3 solution and 1 ml of 0.5 wt% alcoholic solution of SDS at pH 6.5. The results are shown in Fig.…”

Section: Effect Of Acda Concentration On Flotation Efficiencymentioning

confidence: 99%

“…The major advantages of the flotation preconcentration method are the rapidity of the procedure and the excellent recoveries of the trace elements investigated. 1,[12][13][14][15][16] The equipment necessary for flotation preconcentration is simple and inexpensive. The small amount of a surfactant and the tiny air bubbles necessary to perform the proper flotation prevent serious contamination risks, which could be manifested by the high blank values.…”

Section: Introductionmentioning

confidence: 99%

Flotation-Separation and ICP-AES Determination of Ultra Trace Amounts of Copper, Cadmium, Nickel and Cobalt Using 2-Aminocyclopentene-1-dithiocarboxylic Acid

2005

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A rapid flotation method for separation and enrichment of ultra trace amounts of copper(II), cadmium(II), nickel(II) and cobalt(II) ions from water samples is established. At pH 6.5 and with sodium dodecylsulfate used as a foaming reagent, Cu, Ni 2+ and Co 2+ were separated simultaneously with 2-aminocyclopentene-1-dithiocarboxylic acid (ACDA) added to 1 l of aqueous solution. The proposed procedure of preconcentration is applied prior to the determination of these four analytes using inductivity coupled plasma-atomic emission spectrometry (ICP-AES). The effects of pH, concentration of ACDA, applicability of different surfactants and foreign ions on the separation efficiency were investigated. The preconcentration factor of the method is 1000 and the detection limits of copper(II), cadmium(II), nickel(II) and cobalt(II) ions are 0.078, 0.075, 0.072 and 0.080 ng ml -1 , respectively.

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“…12,13 They allow handling of large volumes of samples and considerable savings in reagents and time. [14][15][16] Concerning the various applicable analytical techniques of flotation, which are described in Ref. 16, flotationspectrophotometry probably provides the most sensitive, relatively simple and fast approach to trace metal analysis.…”

Section: Introductionmentioning

confidence: 99%

Determination of Thallium(I) by Flotation-Spectrophotometric Method Using Iodide and Rhodamine B

Hosseini

Naseri

2003

ANAL. SCI.

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Separation and preconcentration of trace substances - III. Flotation as a preconcentration technique

Abstract: Abstract

Cited by 64 publications

References 5 publications

Ion‐flotation Separation of Cd(II), Co(II) and Pb(II) Traces Using a New Ligand before Their Flame Atomic Absorption Spectrometric Determinations in Colored Hair and Dryer Agents of Paint

Ion‐flotation Separation of Cd(II), Co(II) and Pb(II) Traces Using a New Ligand before Their Flame Atomic Absorption Spectrometric Determinations in Colored Hair and Dryer Agents of Paint

Flotation-Separation and ICP-AES Determination of Ultra Trace Amounts of Copper, Cadmium, Nickel and Cobalt Using 2-Aminocyclopentene-1-dithiocarboxylic Acid

Determination of Thallium(I) by Flotation-Spectrophotometric Method Using Iodide and Rhodamine B

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