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Table 2 Quantification limits for endosulfan

From: Contamination of rural surface and ground water by endosulfan in farming areas of the Western Cape, South Africa

Isomer

Concentration of Standard Used (μg/L)

Empirical Mean Value (μg/L)

Empirically Derived Limit (μg/L)

EPA Limit (μg/L) [21]

Alpha-endosulfan

0.171

0.103

0.11

0.030

Beta-endosulfan

0.182

0.206

0.13

0.030

Endosulfan sulphate

0.266

0.290

0.13

0.030

  1. * Empirically-derived quantification limit = 2 x Std Deviation of 7 samples of low concentration of respective standard