|   Sample  |       Vanadium/µg∙L−1  |       Recovery ± s (%)  |       
 (%)  |    ||
|   Added  |       Found  |    ||||
|   Tap water  |       0 10 50  |       2.5 12.5 53.0  |       
 100 ± 0.00 106 ± 0.8  |       
 0.00 0.35  |    |
|   Rain water  |       0 10 50  |       1.5 10.5 52.5  |       
 100 ± 0.00 105 ± 0.5  |       
 0.00 0.19  |    |
|   Well water  |       0 10 50  |       6.5 16.0 58.0  |       
 97 ±0.8 102.6 ± 1.0  |       
 0.33 0.39  |    |
|   River Water  |       Karnaphully (upper)  |       0 10 50  |       35.0 45.0 88.0  |       
 100 ± 0.00 103.5 ± 0.8  |       
 0.00 0.29  |    
|   Karnaphully (lower)  |       0 10 50  |       38.5 48.0 88.5  |       
 99 ± 0.5 100 ± 0.00  |       
 0.25 0.00  |    |
|   Sea Water  |       Bay of Bengal (upper)  |       0 10 50  |       5.0 15.0 58.0  |       
 100 ± 0.00 105 ± 0.8  |       
 0.00 0.24  |    
|   Bay of Bengal (lower)  |       0 10 50  |       7.5 18.0 57.5  |       
 102.8 ± 0.6 100 ± 0.00  |       
 0.27 0.00  |    |
|   Drain water  |       Eastern refineryc  |       0 10 50  |       95.0 105.0 145.8  |       
 100.0 ± 0.0 100.5 ±0.8  |       
 0.00 0.25  |    
|   PHP glassd  |       0 10 50  |       75.6 87.0 126.0  |       
 98.4 ± 0.5 99.7 ± 0.3  |       
 0.65 0.45  |    |
|   BSRM steele  |       0 10 50  |       85.0 95.0 140.0  |       
 100.0 ± 0.0 96.4 ± 1.0  |       
 0.00 0.29  |    |
|   KPMf  |       0 10 50  |       55.0 65.0 108.0  |       
 100.0 ± 0.0 97.2 ± 0.8  |       
 0.00 0.48  |    |
|   Eastern cables Ltd.g  |       0 10 50  |       78.0 88.0 129.0  |       
 100.0 ± 0.0 99.2 ± 1.0  |       
 0.00 0.26  |    |
|   Berzerpainth  |       0 10 50  |       85.30 95.0 138.0  |       
 100.0 ± 0.0 97.8 ± 0.8  |       
 0.00 0.27  |    |