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Table 3 Limits of detection (LOD) in ng L−1 obtained for all water matrices tested

From: Analysis of steroid hormones and their conjugated forms in water and urine by on-line solid-phase extraction coupled to liquid chromatography tandem mass spectrometry

Estrogens LOD (in ng L−1)a
HPLC 1 mLb DW 1 mLb RW 1 mLb WW 1 mLb HPLC 5 mLb RW 5 mLb
E3-3S 7.1 13 7.1 41 9.2 6.3
E2-17G 27 21 48 42 14 21
E2-17S 6.9 17 8.2 28 4.7 3.3
E1-3S 25 63 74 76 4.6 27
E2-3S 8.9 14 5.0 13 3.4 5.3
E3 37 59 26 52 3.6 10
E2 19 14 9.7 14 6.1 9.5
E1 32 20 5.0 26 13 9.7
EE2 31 46 49 62 7.2 25
  1. DW drinking water, RW river water, WW wastewater
  2. aLOD—limit of detection, determined using the most abundant product ion
  3. bSample volume