Süt ve süt ürünlerinin radyoaktivite konsantrasyonları

Abstract

Beyaz peynir, peynir altı suyu tozu, süt tozu, labne, kaşar peyniri ve sütün doğal ve yapay radyoaktivite konsantrasyonları gama spektrometrik metot ile belirlendi. Bu amaçla, p-tipi %110 rölatif verimli eş eksenli HPGe dedektör kullanıldı. Beyaz peynir, peynir altı suyu tozu, süt tozu, labne, kaşar peyniri ve sütün  ⁴⁰K  ortalama radyoaktivite konsantrasyonları sırasıyla 63.1 ± 7.1, 392.6 ± 40.2, 482.1 ±38.6, 152.0 ±12.1, 48.7 ± 5.8 ve 52.2 ± 4.2 Bq/kg dir. ¹³⁷Cs radyoaktivite konsantrasyonları MDA altında bulunmuştur. Süt tozu dışında ²³²Th radyoaktivite konsantrasyonları MDA altında bulunmuştur. Süt tozu ²³²Th radyoaktivite konsantrasyonu 3.2 ± 0.3 - 9.8 ± 0.8 Bq/kg aralığında bulunmuştur. ²²⁶Ra  radyoaktivite konsantrasyonları peynir altı suyu tozu için 5.9 ± 0.5 - 8.3 ± 0.7 Bq/kg, süt için 5.1 ± 0.5 – 9.8 ± 0.8  Bq/kg, beyaz peynir için 4.6 ± 0.5 - 9.9 ± 1.9 Bq/kg, süttozu için 3.5 ± 0.3 - 16.0 ± 1.5 Bq/kg,  labne için 4.2 ± 0.3 - 11.1 ± 1.0 Bq/kg aralığında bulunmuştur.

Keywords

• Gama spectrometri,radyoaktivite konsantrasyonu,süt,süt ürünleri

Radioactivity concentrations of the milk and dairy products

Abstract

 

Natural and artificial radioactivity concentrations of the white cheese, whey powder, milk powder, labaneh, kaskhaval cheese and milk were determined via gamma spectrometric method. For this purpose, p-type 110% relative efficiency coaxial HPGe detector was used. Average ⁴⁰K radioactivity concentrations of the white cheese, whey powder, milk powder, labaneh, kaskhaval cheese and milk were found to be 63.1 ± 7.1, 392.6 ± 40.2, 482.1 ±38.6, 152.0 ±12.1, 48.7 ± 5.8 and 52.2 ± 4.2 Bq/kg respectively. ¹³⁷Cs radioactivity concentrations were found to be below MDA. Except the milk powder ²³²Th  radioactivity concentrations were found to be below MDA. ²³²Th  radioactivity concentrations of the milk powder samples were found to be ranged  from 3.2 ± 0.3 - 9.8 ± 0.8 Bq/kg. ²²⁶Ra  radioactivity concentrations were ranged from 5.9 ± 0.5 - 8.3 ± 0.7 Bq/kg for whey powder, 5.1 ± 0.5 – 9.8 ± 0.8  Bq/kg for milk, 4.6 ± 0.5 -  9.9 ± 1.9 Bq/kg for white cheese, 3.5 ± 0.3 - 16.0 ± 1.5 Bq/kg for milk powder,  4.2 ± 0.3 - 11.1 ± 1.0 Bq/kg for labaneh.

Keywords

• Gamma spectrometry,radioactivity concentration,milk,dairy products

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