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The Scientific World Journal
/
2012
/
Article
/
Tab 3
/
Research Article
Ultrasound-Assisted Emulsification Microextraction Based on Solidification Floating Organic Drop Trace Amounts of Manganese Prior to Graphite Furnace Atomic Absorption Spectrometry Determination
Table 3
Determination of manganese in the water samples.
Sample
Spiked (ng mL
−1
)
Found
a
(ng mL
−1
)
Recovery (%)
Sea water (Persian gulf)
0.00
0.20
7
.
6
0
±
0
.
3
2
7
.
7
9
±
0
.
2
8
—
95.0
Rain water (Kerman)
0.00
0.70
No detect
0
.
7
4
±
0
.
0
3
—
105.7
Tap water (Tehran)
0.00
0.20
5
.
2
4
±
0
.
2
1
5
.
4
5
±
0
.
2
4
—
105.0
Tap water (Kerman)
0.00
0.30
1
.
9
4
±
0
.
0
7
2
.
2
3
±
0
.
0
8
—
96.6
River water (Esfahan)
0.00
0.60
3.28
3.90
—
103.3
a
Mean ± Standard deviation (
𝑛
=
3
).