Table 2.

Phosphorus fractionation in stream water samples: particle fractionation via asymmetric flow field flow fractionation coupled online to inductively couple plasma–mass spectrometry and organic C detection, and the binding percentage of P per nanoparticulate and fine colloidal fraction related to total P concentration as well as their sum across all stream points per site.

Stream pointP binding per fractionTotal PParticulate P§
FirstSecondThird
%L−1
Conventwald
11.31.533.936.740.014.7
22.62.98.013.628.03.8
31.91.81.35.114.00.7
43.33.910.117.313.62.3
52.39.920.232.310.13.3
Mitterfels
17.011.110.428.623.06.6
25.58.09.422.927.06.2
37.810.910.128.857.016.4
49.017.217.343.515.06.5
59.016.914.640.620.68.4
612.121.115.949.114.06.9
710.417.316.644.313.05.8
85.19.612.927.719.05.3
Vessertal
14.24.613.021.810.42.3
22.22.33.98.421.01.8
31.41.42.25.037.01.8
44.45.110.920.516.03.3
56.77.111.925.811.02.8
Wüstebach
15.122.444.171.710.37.4
25.438.537.681.423.018.7
314.830.336.181.29.07.3
410.031.645.787.39.07.9
526.433.133.492.919.017.6
62.85.616.725.114.13.5
78.127.548.984.56.95.8
Leirelva
118.729.242.690.51.51.4
220.228.440.388.91.31.2
319.130.239.388.51.21.1
415.433.538.487.30.90.8
  • First fraction, >1 kDa–20 nm; second fraction, >20–60 nm; third fraction, >60 nm.

  • Total sample P concentration.

  • § Sum of P concentration across all three fractions (n = 29).