Escsis-Earth Systems Center for Stable Isotopic Studies

Samples: C as CO₂ and N as N₂, occasionally S as SO₂
    Plant and Animal material
    Filter samples (use extra insert)
    Sediment samples (use extra insert)
    Natural Abundance or Enriched
    Whatever burns

Sizes: ~2umole gas
    For C and N analysis: 0.5-1.5 mg animals
                                      1.5-3 mg plant
       with N the limiting factor
    For C only, no dilution: ~200 ug
    Test filters and sediments--amounts may vary greatly

Stuff: Costech ECS 4010 with Costech ZeroBlank Autosampler
    CHN combustion/reduction tubes
    CHNS tube available (usually set up twice a year)
    Conflo III--dilution available
    Microbalance to weigh out samples

Availability: For standard plant and animal runs, sign up
Prepared samples easy to ship
Sulfur runs as scheduled

contact: escsis<at>geology.yale<dot>edu

YALE INSTITUTE FOR BIOSPHERIC STUDIES
DIRECTOR, JEFFREY PARK
Rose Rita Riccitelli, Administrator
Daniele Dugre-Martin, Senior Administrative Assistant
Environmental Science Center, 21 Sachem St.
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