Acrylic fibers coated with copper hexacyanoferrate to determine 137Cs activity in coastal seawater of Vietnam

• Published in: Journal of radioanalytical and nuclear chemistry Vol. 326; no. 2; pp. 919 - 924
• Main Authors: Ngo, Nguyen Trong, Thang, Le Xuan, Van Phuc, Nguyen, Sieu, Le Nhu, Trung, Phan Quang, Đao, Nguyen Minh, Lan, Nguyen Thi Huong, Tham, Vo Thi Mong, Chung, Le Ngoc
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 2020; Springer Nature B.V
• Subjects: Cartridges; Cesium 137; Cesium isotopes; Chemistry; Chemistry and Materials Science; Coastal zone; Coated fibers; Copper; Diagnostic Radiology; Hadrons; Heavy Ions; Inorganic Chemistry; Iron; Nuclear Chemistry; Nuclear Physics; Physical Chemistry; Seawater; Sorption; Vietnam; Cs; Copper hexacyanoferrate; Fe(CN); coated fibers; Cu; Seawater
• ISSN: 0236-5731; 1588-2780
• DOI: 10.1007/s10967-020-07374-4

A method employing
137
Cs sorption to copper hexacyanoferrate (Cu
2
[Fe(CN)
6
])-coated fibers for determining
137
Cs activity in seawater is presented in this paper. The Cu
2
[Fe(CN)
6
]-coated fibers were packed into a PVC cartridge and used to treat 300 L of seawater, exhibiting a
137
Cs sorption efficiency of above 99%. The Cu
2
[Fe(CN)
6
]-fiber samples containing
137
Cs were subsequently dried and placed into a 500 mL Marinelli beaker to determine the activity concentrations by gamma spectrometry. This method was applied to seawater of the Phuoc Dinh and Vinh Hai coastal areas in Ninh Thuan province, Vietnam. The activity concentrations of
137
Cs in the surveyed areas ranged from 1.14 to 1.44 Bq/m
3
. The activities of
137
Cs in the seawater samples of this work were compared with those observed in seawater on the coasts of Vietnam and other countries along the South China Sea.