Journal of Chemistry / 2020 / Article / Tab 4

Research Article

Activity Concentrations of Sr-90 and Cs-137 in Seawater and Sediment in the Gulf of Tonkin, Vietnam

Table 4

Results of reference materials for QC of soil and seawater sample.

SampleIsotopeLab value ± uncertainty (Bq/kg)Certified/reference value ± uncertainty (Bq/kg)Bias (%)

IAEA-RML 2017–01
(seawater)
Sr-900.31 ± 0.040.2472 ± 0.001925.4
Cs-1340.207 ± 0.0150.1937 ± 0.00086.8
Cs-1370.304 ± 0.0220.3070 ± 0.0019−1.0

IAEA-375
(Russian soil)
Sr-90103 ± 13108−4.6

IAEA-447
(Moss soil)
Cs-137422 ± 13425 ± 10−0.7

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