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. 2019 Jul 28;19(15):3315. doi: 10.3390/s19153315

Table 3.

Detection of difenidol hydrochloride in real samples and their recoveries.

Sample
(×10−6 mol·L−1)
Added
(×10−6 mol·L−1)
Actual
(×10−6 mol·L−1)
Founded
(×10−6 mol·L−1)
Recovery
(%)
R.S.D.
(%, n = 3)
0 - - - - -
1.5 1.5 0.75 0.74 ± 0.03 99.10 3.91
3 1.125 1.15 ± 0.02 102.28 1.77
6 1.875 1.86 ± 0.02 99.51 1.02
15 4.125 4.12 ± 0.20 101.10 4.41
30 7.875 7.83 ± 0.20 98.99 1.97

R.S.D.: relative standard deviation.