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Soil Chemistry Sub-Cluster Laboratory

The Soil Chemistry Sub-Cluster Laboratory provides support to faculty, staff, and graduate students of The Pennsylvania State University in the areas of chemical analyses of plant tissues, soil extracts, water mixtures, biosolids, and geologic materials. Available procedures and equipment include:

  • Halides (Br-, Cl- and F-), oxyanions (NO2-, NO3-, PO43-, SO32- and SO42-), alkali and alkaline earth cations using a Dionex™ 500 can be expanded to include the determination of additional inorganic anions and organic analytes such as carboxylic, sulfonic, and phosphonic acids; and primary, secondary, tertiary, and quaternary amines).
  • Silicon, silicate, iron, aluminum, nitrate, nitrite, ammonia, total Kjehldahl nitrogen (TKN), total dissolved nitrogen, ortho-phosphate, and total dissolved phosphorus and molybdenum using the principle of flow injection analysis (FIA) colorimetric system: Lachat QuikChem® FIA + 8000 with an XYZ autosampler. (Application of QuickChem® 8000 can be expanded to include pH, acidity, alkalinity, boron, bromide, fluoride, iodide, calcium, potassium, copper, chlorate, chlorite, chromium — hexavalent, magnesium, manganese, sulfate, sulfide, sulfite, uranium, zinc and many others).
  • Dissolved organic and inorganic carbon (DOC & DIC), Non- purgeable organic C (NPOC), total dissolved carbon, and elemental carbon using Shimadzu™ Total Organic Carbon Analyzer TOC-5000A with solution and solid sample modules and equipped with an infrared detector to measure CO2.
  • Elemental carbon, hydrogen, nitrogen, sulfur, and oxygen (CHNS-O) using a CEInstruments (Thermo Electron Corp) Elemental Analyzer EA 1110 with thermal conductivity detector (TCD).