Published online 2 February 2006
Published in Soil Sci Soc Am J 70:378-381 (2006)
DOI: 10.2136/sssaj2005.0156N
© 2006 Soil Science Society of America
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Automated Robotic Assay of Phosphomonoesterase Activity in Soils
M. J. Sadowskya,*,
W. C. Koskinenb,
J. Seebingerc,
B. L. Barberc and
E. Kandelerd
a Dep. of Soil, Water, & Climate, and BioTechnology Institute, Univ. of Minnesota, St. Paul, MN 55108, USA
b USDA-ARS, Soil and Water Management Research Unit, St. Paul, MN 55108, USA
c Dep. of Soil, Water, & Climate, Univ. of Minnesota, St. Paul, MN 55108, USA
d Institute of Soil Science and Land Evaluation, Univ. of Hohenheim, 70599 Stuttgart, Germany

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Fig. 1. Schematic diagram of the automated robotic soil analysis system: (1) Zymate II core system; consisting of arm, computer, and controller; (2) 16 by 100 mm tube rack (initial soil samples); (3) Filling station (buffer, substrate, distilled water, calcium chloride, and color reagent); (4) Vortex station; (5) Water bath for incubation with 16 by 100 test tube rack inside; (6) Zymark custom hand; (7) Filtering station and column holder; (8) column disposal slide; (9) 16 by 100 mm filtrate test tube rack; (10) custom hand; (11) 50-mL test tube rack; (12) Zymark pipetting hand and pipette tip rack; (13) Microtiter plate rack.
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Copyright © 2006 by the Soil Science Society of America.