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Table 2 Final concentrations of test chemicals in the obtained soil sample

From: Assessment of the effects of phenanthrene and its nitrogen heterocyclic analogues on microbial activity in soil

Compound Initial concentration (mg kg−1) Final concentration (mg kg−1) Recoveries (%)
Phenanthrene 10 6.70 67.00
  100 78.00 78.00
  250 241.00 96.40
  500 494.50 98.90
1,7-Phenanthroline 10 4.90 49.00
  100 59.30 59.30
  250 238.00 95.20
  500 523.60 104.70
Benzo[h]quinoline 10 7.00 70.00
  100 59.20 59.20
  250 227.10 90.80
  500 504.50 100.90
4,7-Phenanthroline 10 7.80 78.00
  100 91.90 91.90
  250 235.80 94.30
  500 408.60 81.70