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Table 2

Measured results for standard sulfur-containing samples

Standard sulfur content (mg)Mean values and standard deviation (SD) (mg)Relative standard deviation (RSD) (%, n = 3)Recovery rate (%)
200 191.15 ± 1.20 0.63 95.29 
150 149.25 ± 0.32 0.21 99.37 
100 96.79 ± 0.48 0.50 96.60 
75 75.37 ± 0.68 0.90 100.57 
50 47.95 ± 0.09 0.18 95.14 
25 26.54 ± 0.23 0.87 104.51 
10 13.98 ± 0.02 0.11 138.43 
8.23 ± 0.08 0.99 158.36 
Standard sulfur content (mg)Mean values and standard deviation (SD) (mg)Relative standard deviation (RSD) (%, n = 3)Recovery rate (%)
200 191.15 ± 1.20 0.63 95.29 
150 149.25 ± 0.32 0.21 99.37 
100 96.79 ± 0.48 0.50 96.60 
75 75.37 ± 0.68 0.90 100.57 
50 47.95 ± 0.09 0.18 95.14 
25 26.54 ± 0.23 0.87 104.51 
10 13.98 ± 0.02 0.11 138.43 
8.23 ± 0.08 0.99 158.36 
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