Separation and Preconcentration of the Trace Amounts of Several Metals in Sodium Perchlorate, Using Activated Carbon as a Collector

Masaru Kimura, Kazuko Kawanami

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4 Citations (Scopus)

Abstract

Amethod is described for the preconcentration and determination of the traceof Ag, Bi, Co, Cd, Cu, Fe, In, Mn, Ni, Pb, and Hg in sodiu血 perchlorate. The samples of 100 g of NaCIO4。H20 were dissolved in 200mJ water and the solution was丘 1tered through a small 舳er paper coated with 50 mg of activated carbon, after the adlustment of pH to 6.0(the pH was n◎t adjusted for the Hg preconcentration). The trace metals of the concentration ranging from O.3to 200ppb and O.012 to 2.Oppb of Hg were quantitatively adsorbed◎n the activated carbon. The activated carbon(with exception for the procedure of Hg)was treated with l mZ of the concentrated nitric acid to liberate the adsorbed traces and the solution was evap◎rated to dryness. Then the residue was diss◎1ved in 3ml of 20%nitric acid and the trace metals were determined by the翌 ame atornic absorption spectrometry(AAS). The concentrations of Hg adsorbed on the activated carbon were deterrnined by the丑 ameless AAS, the activated carbon and the創 ter paper being together heated at 500◎C for 5 min and the mercury being atomized・The detection limits for the analysis of 100 g of NaCIO4。H20 were O.012 pPb for Hg, 44ppb for Fe, and 0.3∼7 ppb for the other elements. When 0.016μ of mercury (II) chloride was dissolved into 200 ml of the distilled water in a beaker and stood for 24 h at 17°C, about 30% mercury was adsorbed on the glass wall. However, the adsorbed amounts of mercury decreased by the addition of sodium perchlorate and no appreciable adsorptions occurred in the sodium perchlorate solutions of the concentrations more than 0.14 mol-dm-3.

Original languageEnglish
Pages (from-to)1-6
Number of pages6
JournalNippon Kagaku Kaishi
Volume1981
Issue number1
DOIs
Publication statusPublished - 1981
Externally publishedYes

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Activated carbon
Mercury
Metals
Sodium
Nitric Acid
Nitric acid
Spectrometry
Water
Chlorides
sodium perchlorate
Adsorption
Glass
Trace metals

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

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title = "Separation and Preconcentration of the Trace Amounts of Several Metals in Sodium Perchlorate, Using Activated Carbon as a Collector",
abstract = "Amethod is described for the preconcentration and determination of the traceof Ag, Bi, Co, Cd, Cu, Fe, In, Mn, Ni, Pb, and Hg in sodiu血 perchlorate. The samples of 100 g of NaCIO4。H20 were dissolved in 200mJ water and the solution was丘 1tered through a small 舳er paper coated with 50 mg of activated carbon, after the adlustment of pH to 6.0(the pH was n◎t adjusted for the Hg preconcentration). The trace metals of the concentration ranging from O.3to 200ppb and O.012 to 2.Oppb of Hg were quantitatively adsorbed◎n the activated carbon. The activated carbon(with exception for the procedure of Hg)was treated with l mZ of the concentrated nitric acid to liberate the adsorbed traces and the solution was evap◎rated to dryness. Then the residue was diss◎1ved in 3ml of 20{\%}nitric acid and the trace metals were determined by the翌 ame atornic absorption spectrometry(AAS). The concentrations of Hg adsorbed on the activated carbon were deterrnined by the丑 ameless AAS, the activated carbon and the創 ter paper being together heated at 500◎C for 5 min and the mercury being atomized・The detection limits for the analysis of 100 g of NaCIO4。H20 were O.012 pPb for Hg, 44ppb for Fe, and 0.3∼7 ppb for the other elements. When 0.016μ of mercury (II) chloride was dissolved into 200 ml of the distilled water in a beaker and stood for 24 h at 17°C, about 30{\%} mercury was adsorbed on the glass wall. However, the adsorbed amounts of mercury decreased by the addition of sodium perchlorate and no appreciable adsorptions occurred in the sodium perchlorate solutions of the concentrations more than 0.14 mol-dm-3.",
author = "Masaru Kimura and Kazuko Kawanami",
year = "1981",
doi = "10.1246/nikkashi.1981.1",
language = "English",
volume = "1981",
pages = "1--6",
journal = "Nippon Kagaku Kaishi / Chemical Society of Japan - Chemistry and Industrial Chemistry Journal",
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TY - JOUR

T1 - Separation and Preconcentration of the Trace Amounts of Several Metals in Sodium Perchlorate, Using Activated Carbon as a Collector

AU - Kimura, Masaru

AU - Kawanami, Kazuko

PY - 1981

Y1 - 1981

N2 - Amethod is described for the preconcentration and determination of the traceof Ag, Bi, Co, Cd, Cu, Fe, In, Mn, Ni, Pb, and Hg in sodiu血 perchlorate. The samples of 100 g of NaCIO4。H20 were dissolved in 200mJ water and the solution was丘 1tered through a small 舳er paper coated with 50 mg of activated carbon, after the adlustment of pH to 6.0(the pH was n◎t adjusted for the Hg preconcentration). The trace metals of the concentration ranging from O.3to 200ppb and O.012 to 2.Oppb of Hg were quantitatively adsorbed◎n the activated carbon. The activated carbon(with exception for the procedure of Hg)was treated with l mZ of the concentrated nitric acid to liberate the adsorbed traces and the solution was evap◎rated to dryness. Then the residue was diss◎1ved in 3ml of 20%nitric acid and the trace metals were determined by the翌 ame atornic absorption spectrometry(AAS). The concentrations of Hg adsorbed on the activated carbon were deterrnined by the丑 ameless AAS, the activated carbon and the創 ter paper being together heated at 500◎C for 5 min and the mercury being atomized・The detection limits for the analysis of 100 g of NaCIO4。H20 were O.012 pPb for Hg, 44ppb for Fe, and 0.3∼7 ppb for the other elements. When 0.016μ of mercury (II) chloride was dissolved into 200 ml of the distilled water in a beaker and stood for 24 h at 17°C, about 30% mercury was adsorbed on the glass wall. However, the adsorbed amounts of mercury decreased by the addition of sodium perchlorate and no appreciable adsorptions occurred in the sodium perchlorate solutions of the concentrations more than 0.14 mol-dm-3.

AB - Amethod is described for the preconcentration and determination of the traceof Ag, Bi, Co, Cd, Cu, Fe, In, Mn, Ni, Pb, and Hg in sodiu血 perchlorate. The samples of 100 g of NaCIO4。H20 were dissolved in 200mJ water and the solution was丘 1tered through a small 舳er paper coated with 50 mg of activated carbon, after the adlustment of pH to 6.0(the pH was n◎t adjusted for the Hg preconcentration). The trace metals of the concentration ranging from O.3to 200ppb and O.012 to 2.Oppb of Hg were quantitatively adsorbed◎n the activated carbon. The activated carbon(with exception for the procedure of Hg)was treated with l mZ of the concentrated nitric acid to liberate the adsorbed traces and the solution was evap◎rated to dryness. Then the residue was diss◎1ved in 3ml of 20%nitric acid and the trace metals were determined by the翌 ame atornic absorption spectrometry(AAS). The concentrations of Hg adsorbed on the activated carbon were deterrnined by the丑 ameless AAS, the activated carbon and the創 ter paper being together heated at 500◎C for 5 min and the mercury being atomized・The detection limits for the analysis of 100 g of NaCIO4。H20 were O.012 pPb for Hg, 44ppb for Fe, and 0.3∼7 ppb for the other elements. When 0.016μ of mercury (II) chloride was dissolved into 200 ml of the distilled water in a beaker and stood for 24 h at 17°C, about 30% mercury was adsorbed on the glass wall. However, the adsorbed amounts of mercury decreased by the addition of sodium perchlorate and no appreciable adsorptions occurred in the sodium perchlorate solutions of the concentrations more than 0.14 mol-dm-3.

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U2 - 10.1246/nikkashi.1981.1

DO - 10.1246/nikkashi.1981.1

M3 - Article

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VL - 1981

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JO - Nippon Kagaku Kaishi / Chemical Society of Japan - Chemistry and Industrial Chemistry Journal

JF - Nippon Kagaku Kaishi / Chemical Society of Japan - Chemistry and Industrial Chemistry Journal

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