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	7.60±0.32; 7.79±0.28	—; 95.0
Rain water (Kerman)	0.00; 0.70	No detect; 0.74±0.03	—; 105.7
Tap water (Tehran)	0.00; 0.20	5.24±0.21; 5.45±0.24	—; 105.0
Tap water (Kerman)	0.00; 0.30	1.94±0.07; 2.23±0.08	—; 96.6
River water (Esfahan)	0.00; 0.60	3.28; 3.90	—; 103.3

^aMean ± Standard deviation (𝑛=3).