Determination of 210Pb, 210Bi and 210Po in natural waters and other materials by electrochemical separation

Narita, Hisashi; Harada, Koh; Burnett, W. C.; Tsunogai, Shizuo; McCabe, W.J.

doi:10.1016/0039-9140(89)80031-1

Cited by 28 publications

(6 citation statements)

References 10 publications

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“…3,17 But, for a large amount of a sample (>2 L), this method is time consuming. Therefore, to reduce the volume of a water sample, coprecipitation methods using ferric hydroxide 1,8 and manganese 9,10 have usually been used. When ferric hydroxide is used as a precipitation method in a sample preparation, it is necessary to remove Fe from a sample solution with a solvent extraction like di-isopropyl ether 1 before a radiochemical separation.…”

Section: Resultsmentioning

confidence: 99%

“…Polonium-210 enters the environment through wet and dry atmospheric deposition processes, so 210 Po is useful as a tracer for a study of the processes occurring in environmental systems. [1][2][3] From the point of view of the total radiation dose received by human beings, 210 Po contributes more to the human body than the environmental levels of anthropogenic radionuclides, such as 137 Cs and 239,240 Pu. Monitoring 210 Po in effluent and natural waters requires a method which is reliable, rapid and sensitive.…”

Section: Introductionmentioning

confidence: 99%

“…The presence of interference ions makes this procedure less reliable both by reducing the deposition yield of Po and increasing the thickness of the deposited layer. Therefore, it is necessary to purify the Po from the interference elements and nuclides after coprecipitation of a water sample with ferric hydroxide 1,8 or manganese. 9,10 For obtaining a reliable activity concentration of 210 Po in water, highly selective chemical methods such as solvent extraction, 11 ion exchange 12 and extraction chromatography 13 are desirable.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Determination of Polonium Nuclides in a Water Sample with Solvent Extraction Method

Lee¹,

Lee²,

Song³

et al. 2010

Bulletin of the Korean Chemical Society

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A method is described for the determination of the Po nuclides in a water sample. After the Po nuclides were purified from interfering elements in a water sample using a manganese dioxide precipitation followed by a solvent extraction method, the Po nuclides were deposited onto the silver plate. A large volume of the water sample was effectively pretreated with manganese dioxide precipitation method. To determine the optimum conditions for plating Po, the effects of the pH, volume, temperature and time on the Po deposition were investigated in hydrochloric acid solution. The investigated determination method of Po nuclides with solvent extraction was applied to a tap water sample.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Determination of Polonium Nuclides in a Water Sample with Solvent Extraction Method

Lee¹,

Lee²,

Song³

et al. 2010

Bulletin of the Korean Chemical Society

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“…The samples were then digested on a hot plate to dryness at a temperature below 80°C to prevent the volatilization of polonium (Murray et al 2007). Dried samples were then re-dissolved with 0.5 M of HCl, followed by the application of a radiochemical separation procedure as published by Narita et al (1989).…”

Section: Radiochemical Analysismentioning

confidence: 99%

Impact of northern and southern air mass transport on the temporal distribution of atmospheric 210Po and 210Pb in the east coast of Johor, Malaysia

Sabuti

Mohamed

2016

Environ Sci Pollut Res

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Concentration activities of (210)Pb and (210)Po in the PM10 were determined to discuss their distribution and chemical behavior in relation to meteorological parameters especially in air mass transport during monsoon events. Marine aerosol samples were collected between January 2009 and December 2010 at the coastal region of Mersing, which is located in the southern South China Sea and is about 160 km northeast of Johor Bahru, as part of the atmosphere-ocean interaction program in Malaysia. About 47 PM10 samples were collected using the Sierra-Andersen model 1200 PM10 sampler over a 2-year sampling campaign between January 2009 and December 2010. Samples were processed using acid digestion sequential extraction techniques to analyze various fractions such as Fe and Mn oxides, organic matter, and residual fractions. While, (210)Pb and (210)Po activities were measured with the Gross Alpha/Beta Counting System model XLB-5 Tennelec® Series 5 and the Alpha Spectrometry (model Alpha Analyst Spectroscopy system with a silicon-surface barrier detector), respectively. The distribution activities of (210)Pb and (210)Po in the PM10 samples were varied from 162 to 881 μBq/m(3) with mean value of 347 ± 170 μBq/m(3) and from 85 to 1009 μBq/m(3) with mean value of 318 ± 202 μBq/m(3), respectively. The analysis showed that (210)Po activity in our samples lies in a border and higher range than global distribution values due to contributions from external sources injected to the atmosphere. The speciation of (210)Pb and (210)Po in marine aerosol corresponds to transboundary haze; e.g., biomass burning especially forest fires and long-range air mass transport of terrestrial dust has enriched concentrations of particle mass in the local atmosphere. The monsoon seems to play an important role in transporting terrestrial dust from Indo-China and northern Asia especially during the northeast monsoon, as well as biogenic pollutants originating from Sumatra and the southern ASEAN region during southwest monsoon events.

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“…This alpha emitter is considered to be highly radioactive and toxic and is dangerous to handle: even 1 μg of 210 Po is fatal to an adult. , Direct damage could occur from energy adsorption into tissues from alpha particles emitted by 210 Po. Due to the importance of 210 Po in biological effect and environmental tracing studies, numerous methods have been developed for the determination of 210 Po in environmental and biological samples such as water, food, tobacco, cigarettes, urine, soil, and sediment. − …”

mentioning

confidence: 99%

Method of Polonium Source Preparation Using Tellurium Microprecipitation for Alpha Spectrometry

Song

Wang

et al. 2017

Anal. Chem.

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A thin-layer source for the counting of polonium isotopes by alpha spectrometry can be rapidly prepared using microprecipitation with tellurium. Polonium was first coprecipitated with the reduction of tellurium by stannous chloride, followed by microfiltration onto a membrane filter for counting. This microprecipitation method is faster, cheaper, and more convenient than the traditional spontaneous deposition method, with an excellent Po recovery (>90%) under optimal conditions. The influences of several experimental parameters, including Te(IV) quantity, reaction time, and HCl molarity, were examined to determine the optimal conditions for Te microprecipitation. The decontamination factors of potential interferences from various radionuclides (Ra, Th, U, Pu, Am) for the counting of long-lived polonium isotopes (Po, Po, andPo) were also evaluated, and the results confirmed a good selectivity on polonium by this microprecipitation method. Due to its strong resistance to high acidity up to 12 M HCl, the method would be particularly suitable for rapid determination of Po in acid leaching solution of solid samples.

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Determination of 210Pb, 210Bi and 210Po in natural waters and other materials by electrochemical separation

Cited by 28 publications

References 10 publications

Determination of Polonium Nuclides in a Water Sample with Solvent Extraction Method

Determination of Polonium Nuclides in a Water Sample with Solvent Extraction Method

Impact of northern and southern air mass transport on the temporal distribution of atmospheric 210Po and 210Pb in the east coast of Johor, Malaysia

Method of Polonium Source Preparation Using Tellurium Microprecipitation for Alpha Spectrometry

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