Fig. 3From: Analysis of steroid hormones and their conjugated forms in water and urine by on-line solid-phase extraction coupled to liquid chromatography tandem mass spectrometryEffect of loading speed. Percentage recovery for all analytes tested using 1500 µl min−1, 2000 μL min−1 and 2500 µL min−1 flow rates. A flow of 1000 μl min−1 was considered as 100 % (n = 3, C = 500 ng L−1)Back to article page