Possibility of rapid determination of low-level 90Sr activity by combination of extraction chromatography separation and Cherenkov counting

Grahek, Željko; Zečević, Nenad; Lulić, Stipe

doi:10.1016/s0003-2670(99)00469-9

Cited by 34 publications

(9 citation statements)

References 19 publications

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“…Separation of strontium is particularly important in the determination of the radioactive isotopes of strontium 89,90 Sr in natural samples. Isotope 89,90 Sr are pure -emitters and cannot be determinate without separating strontium from all natural and artificial radioactive isotopes present as well as from the elements contained in large quantities of natural samples such as potassium, sodium, calcium and iron [4].…”

Section: Introductionmentioning

confidence: 99%

Adsorption Characterization of Strontium on PAN/Zeolite Composite Adsorbent

Yuşan

Erenturk

2011

WJNST

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This work reports the adsorption of strontium from aqueous solutions onto PAN/zeolite composite. The strontium adsorption on the composite adsorbent was studied as a function of initial strontium concentration, pH of the solution, contact time and temperature. Adsorption isotherms like Langmuir, Freundlich,Dubinin–Radushkevich (D–R) and Temkin were used to analyze the equilibrium data at the different concentrations.Adsorption process well fitted to Temkin isotherm model. Thermodynamic parameters such as the changes in enthalpy, entropy and Gibbs’ free energy were determined, showing adsorption to be an exothermic and spontaneous process

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Section: Introductionmentioning

confidence: 99%

Adsorption Characterization of Strontium on PAN/Zeolite Composite Adsorbent

Yuşan

Erenturk

2011

WJNST

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“…90 Sr ions are then beta counted using a low background gas flow proportional counter or Cherenkov counting of 90 Y as previously discussed (Grahek et al 1999;Torres et al 2000Torres et al , 2002. One disadvantage with this technique is some ions interfere with the strontium separation.…”

Section: Laboratory Analysis Of Environmental Samplesmentioning

confidence: 99%

Immune System Modifications Induced in a Mouse Model of Chronic Exposure to⁹⁰Sr

Synhaeve¹,

Musilli²,

Stéfani³

et al. 2016

Radiation Research

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“…The samples must be radiochemically pretreated in order to isolate 90 Sr or its daughter 90 Y. Some investigators have used Cherenkov counting to measure 90 Sr/ 90 Y in water samples [1,[4][5][6]. The intervention levels established by the European Union for 90 Sr contamination are 125 Bq/L for water and 75-125 Bq/L for milk, depending on age.…”

Section: Introductionmentioning

confidence: 99%

A rapid method for screening 90Sr activity in water and milk samples using Cherenkov radiation

Stamoulis

Ioannides

Karamanis

et al. 2019

hnps

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Strontium-90 is one of the most dangerous fission products that enter the food chain. Because of its similar chemistry to calcium, it is deposited to bones posing a high risk for human health. 90Sr is a pure ^-emitter and decays to 90Y also a /3-emitter. The fast moving electrons emitted by the 90Y decay, produce Cherenkov radiation, which can be detected by a Liquid Scintillation Counter (LSC). Water and milk samples spiked with various concentrations of 9 0Sr/90Y in equilibrium were measured in a LSC (Tricarb 3170 TR/SL). The derived efficiencies were 50% for water samples and 13 % for milk samples. The minimum detectable activities (MDA) for measuring 90Sr in water and milk samples, without any pretreatment were calculated 240 mBq/L and 1 Bq/L respectively. The intervention levels for 90Sr contamination in water and milk samples, established by the European Union are 125 Bq/L and 75-125 Bq/L depending on age, respectively. The interference of 40K, which is present in milk due to its natural potassium content,was also investigated.

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Possibility of rapid determination of low-level 90Sr activity by combination of extraction chromatography separation and Cherenkov counting

Cited by 34 publications

References 19 publications

Adsorption Characterization of Strontium on PAN/Zeolite Composite Adsorbent

Adsorption Characterization of Strontium on PAN/Zeolite Composite Adsorbent

Immune System Modifications Induced in a Mouse Model of Chronic Exposure to⁹⁰Sr

A rapid method for screening 90Sr activity in water and milk samples using Cherenkov radiation

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Possibility of rapid determination of low-level 90Sr activity by combination of extraction chromatography separation and Cherenkov counting

Cited by 34 publications

References 19 publications

Adsorption Characterization of Strontium on PAN/Zeolite Composite Adsorbent

Adsorption Characterization of Strontium on PAN/Zeolite Composite Adsorbent

Immune System Modifications Induced in a Mouse Model of Chronic Exposure to90Sr

A rapid method for screening 90Sr activity in water and milk samples using Cherenkov radiation

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Product

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Immune System Modifications Induced in a Mouse Model of Chronic Exposure to⁹⁰Sr