Solid-Phase Extraction of Trace Amounts of Uranium(VI) in Environmental Water Samples Using an Extractant-Impregnated Resin Followed by Detection with UV-Vis Spectrophotometry

Table 5

Results of the accuracy test of proposed method for U(VI) determination in two geological standard reference materials.

Samples	U(VI) content (μg g^−1)	Found (μg g^−1)	Recovery (%)
JG-1a^a	4.7	4.63 (3.1)^b	98.6
JR-1^a	8.9	8.81 (3.0)^b	99.0

^aThe treatments were carried out on 0.5 g of the sample.
^b RSD of five replicate measurements.