Multielement preconcentration of trace heavy metals in water by coprecipitation and flotation with indium hydroxide for inductively coupled plasma-atomic emission spectrometry

Hiraide, Masataka; Ito, Tetsumasa; Baba, Masafumi.; Kawaguchi, Hiroshi; Mizuike, Atsushi

doi:10.1021/ac50056a008

Cited by 117 publications

(26 citation statements)

References 15 publications

(4 reference statements)

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“…Although some work has been carried out for the flotation of Hg 2+ [8,10,14,[22][23][24][25][26][27][28]; Cd 2+ [8,10,[29][30][31][32][33][34][35][36][37] and Mn 2+ [17,32,[38][39][40][41][42][43] from aqueous solutions, wastes and natural waters, no attention has been paid towards the use of thiosemicarbazide derivatives in this respect. Therefore, the objective of the present work was to extend the application of flotation technique to separate Hg 2+ , Cd 2+ and Mn 2+ ions from aqueous solutions using (H2PPS), (H2PBO), (H2APO), (H2PPY) and oleic acid surfactant (HOL) under the recommended conditions.…”

Section: Introductionmentioning

confidence: 99%

Flotation-separation of toxic metal ions from aqueous solutions using thiosemicarbazide derivatives as chelating agents and oleic acid as a surfactant

et al. 2010

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Section: Introductionmentioning

confidence: 99%

Flotation-separation of toxic metal ions from aqueous solutions using thiosemicarbazide derivatives as chelating agents and oleic acid as a surfactant

et al. 2010

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“…[24][25][26] We also examined the fundamental conditions for coprecipitation, and obtained almost the same results as previously:24-26 1) lead was almost completely collected with indium hydroxide over a wide pH range of 7 -11; 2) the necessary amount of indium for a quantitative coprecipitation of lead was 10 mg for 1000 cm3 of water sample; and 3) the recovery of lead reached almost 100% within a few minutes after the formation of indium hydroxide, which remained unchanged upon standing for at least 5 h.…”

Section: Resultsmentioning

confidence: 99%

Differential Pulse Polarographic Determination of Lead Using a Rapid Coprecipitation Technique with Indium Hydroxide

1994

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An analytical method involving lead in water was studied using differential pulse polarography (DPP) after being concentrated by the rapid coprecipitation technique with indium hydroxide. Indium hydroxide coprecipitates quantitatively 1-1500 µg of lead from up to 1000 cm3 of sample solution at a pH of about 9. The presence of indium does not affect the polarogram of lead. Since the concentration of indium is also measurable by DPP, the rapid coprecipitation technique, which does not require a complete collection of the collector precipitate, becomes possible using a known amount of indium and measuring the concentrations of both lead and indium in the final sample solution by DPP. The calibration curve is linear over the 0.04 -60 µg cm-3 range of lead. Of the 39 diverse ions tested, tin(IV) and selenium(IV) interfered with the determination. The effect of tin(IV), however, could be eliminated by the addition of phosphoric acid. The proposed method is rapid and applicable to the determination of lead in water samples.

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“…According to the USA Environmental Protection Agency, the standards for the maximum allowable levels of Zn 2+ and Hg 2+ in drinking water are 7.7×10 -8 M and 1.0×10 -8 M, respectively. Thus developing a sensing method for such low concentrations of Zn 2+ and Hg 2+ in aqueous solution is of great importance.Traditional laboratory techniques for the detection of metal ions include atomic absorption spectrometry [9], inductively coupled plasma-atomic emission spectrometry [10], and inductively coupled plasma-mass spectrometry [11], which are generally costly and time-consuming because of their tedious and complex sample pre-treatments. It is therefore exigent to develop simple, rapid and inexpensive methods for detection of heavy metal ions.…”

mentioning

confidence: 99%

“…Traditional laboratory techniques for the detection of metal ions include atomic absorption spectrometry [9], inductively coupled plasma-atomic emission spectrometry [10], and inductively coupled plasma-mass spectrometry [11], which are generally costly and time-consuming because of their tedious and complex sample pre-treatments. It is therefore exigent to develop simple, rapid and inexpensive methods for detection of heavy metal ions.…”

mentioning

confidence: 99%

R6G/8-AQ co-functionalized Fe3O4@SiO2 nanoparticles for fluorescence detection of trace Hg2+ and Zn2+ in aqueous solution

Meng

Wang

et al. 2015

Sci. China Mater.

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usage of mercury and its compounds in industry and the steadily increased use of fossil fuels. Moreover, bacteria in the natural environment can convert inorganic mercury to neurotoxic methylmercury, which can be bio-accumulated through the food chains [7,8]. Therefore, mercury and its compounds are potential threats to the public health. According to the USA Environmental Protection Agency, the standards for the maximum allowable levels of Zn 2+ and Hg 2+ in drinking water are 7.7×10 -8 M and 1.0×10 -8 M, respectively. Thus developing a sensing method for such low concentrations of Zn 2+ and Hg 2+ in aqueous solution is of great importance.Traditional laboratory techniques for the detection of metal ions include atomic absorption spectrometry [9], inductively coupled plasma-atomic emission spectrometry [10], and inductively coupled plasma-mass spectrometry [11], which are generally costly and time-consuming because of their tedious and complex sample pre-treatments. It is therefore exigent to develop simple, rapid and inexpensive methods for detection of heavy metal ions.Fluorescence sensor has advantages of low cost, simplicity and high sensitivity. Indeed, designing fluorophore-based chemo-sensors for heavy metal ions has gained special attention [12]. Up to now, several fluorescence sensors for Zn 2+ and Hg 2+ have been developed [13][14][15][16]. However, for these fluorescence-based sensors, both external environment and the instrument itself can readily affect the test results. To solve this problem, ratiometric fluorescent sensors have been favourably devised [17][18][19][20][21][22][23][24]. Furthermore, to improve the detection sensitivity, a new trend is to apply nanoparticles (NPs) in sensor designs [25,26]. It has been reported that the solubility of small organic molecules (fluorophores) in water solution can be improved by M, respectively. The R6G/8-AQ co-functionalized core/shell Fe3O4@SiO2 NPs showed good selectivity to Hg 2+ and Zn 2+ over other common metal ions examined in neutral aqueous solutions. Moreover, the R6G/8-AQ co-functionalized core/shell Fe3O4@SiO2 NPs could be recycled from the detected samples using a magnet. This work has thus showed not only a practical sensing method for Zn 2+ and Hg 2+, but also a promising guide to the design of fluorimetric/colorimetric sensors for other targets.

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Multielement preconcentration of trace heavy metals in water by coprecipitation and flotation with indium hydroxide for inductively coupled plasma-atomic emission spectrometry

Cited by 117 publications

References 15 publications

Flotation-separation of toxic metal ions from aqueous solutions using thiosemicarbazide derivatives as chelating agents and oleic acid as a surfactant

Flotation-separation of toxic metal ions from aqueous solutions using thiosemicarbazide derivatives as chelating agents and oleic acid as a surfactant

Differential Pulse Polarographic Determination of Lead Using a Rapid Coprecipitation Technique with Indium Hydroxide

R6G/8-AQ co-functionalized Fe3O4@SiO2 nanoparticles for fluorescence detection of trace Hg2+ and Zn2+ in aqueous solution

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