Authors:
K. Swain Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085 India

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Nicy Ajith Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085 India

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R. Acharya Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085 India

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R. Verma Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085 India

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A. Reddy Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085 India

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Abstract  

Large sample neutron activation analysis of dross from India Government Mint, Mumbai was carried out for quantification of gold (Au) and silver (Ag) using graphite reflector position of Advanced Heavy Water Reactor critical facility at Bhabha Atomic Research Centre, Mumbai. The k0-based internal monostandard NAA was used to calculate concentration ratios of Au and Ag with respect to sodium (Na), which was used as an internal monostandard. The concentration ratio values of Au to Na of varying mass of dross showed that mass ≥2 g was the representative sample size for analysis. Concentrations of gold and silver were found to be in the range of 200–400 and 1200–1700 mg kg−1, respectively in three different samples.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)