Subsequent determination of 90Sr and 210Pb in goat bones...

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Subsequent determination of 90 Sr and 210 Pb in goat bones samples from Island of Mljet, Croatia Marijana Nodilo, Silvia Dulanská, Ľubomír Mátel, Željko

Transcript of Subsequent determination of 90Sr and 210Pb in goat bones...

Page 1: Subsequent determination of 90Sr and 210Pb in goat bones ...lsc2017.nutech.dtu.dk/wp-content/uploads/5-Nodilo-90Sr-210Pb-LSC… · from Island of Mljet, Croatia Marijana Nodilo, Silvia

Subsequent determination of 90Sr and 210Pb in goat bones samples

from Island of Mljet, Croatia

Marijana Nodilo, Silvia Dulanská, Ľubomír Mátel, Željko

Page 2: Subsequent determination of 90Sr and 210Pb in goat bones ...lsc2017.nutech.dtu.dk/wp-content/uploads/5-Nodilo-90Sr-210Pb-LSC… · from Island of Mljet, Croatia Marijana Nodilo, Silvia

Motivation

• The island of Mljet, Croatia

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Introduction

• A new method for 90Sr and 210Pb determination

• Goat bone samples

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A new method for 90Sr and 210Pb determination

• Chemical isolation: AnaLig Sr-01 and Sr Resin

• Detection: Liquid Scintillation Counter (LSC)

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90Sr i 210Pb in bone samples -methodology

• 1. Sample preparation

• Ashing• HNO3

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90Sr i 210Pb in bone samples -methodology

• 2. Separation:• Sr resin• 8 M HNO3• Sr – H2O• Pb – 9 M HCl

• 3. Detection:• 90Sr –

Cherenkovcounting

• 210Pb –classical LSC

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90Sr i 210Pb in bone samples

• Sr resin• 90Sr: MDA (2.6 Bq kg-1) – 40.5 Bq kg-1

• 210Pb (MDA 1.9 Bq kg-1): 8.4 – 93.1 Bq kg-1

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90Sr i 210Pb in bone samples

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The island of Mljet – Massic activities of radionuclides in the terra rossa soil samples

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Conclusion

• A verified newmethod

• Sr resin• Cherenkov, classical

LSC counting• Need for additional

research