LLNL National Resource for Biomedical Accelerator Mass Spectrometry
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Resource Analytical Equipment

LLNL is a National laboratory organized to facilitate multidisciplinary sharing of facilities and equipment among its staff. This environment provides libraries at LLNL and access to University of California libraries. Resource facilities at LLNL include laboratories for sample preparation, chemical separations, physical analysis, and cell culture. These laboratories are equipped with fume hoods, a Nanopure water system, refrigerators, freezers, water baths, centrifuges, balances, vacuum dryers, incubators for cell culture. An AAALAC-certified animal care facility is available. In addition, the following equipment is used by the Resource:

1. The1 MV accelerator mass spectrometer was (see photo below) developed partially under the Resource funding. 14C and tritium analyses of biomedical samples submitted by Resource users are conducted using this 1 MV system. The AMS spectrometer consists of a cesium sputter source, low-energy injection beam line, the high voltage collision cell (accelerator), a high-energy mass spectrometer and a particle detector for energy measurements (proceeding clockwise from lower left in the photograph).

Accelerator Mass Spectrometer - 1  mv System

Another spectrometer is available to the Resource through CAMS: a 10-MV FN tandem accelerator capable of terminal voltages up to 10 MV with AMS measurement capabilities developed for 3H, 10Be, 14C, 26Al, 36Cl, 41Ca, 63, 59Ni, 99Tc, 129I and 239Pu. A 1.7 MV tandem proton accelerator for nuclear microscopy that can measure the masses of ?g to pg quantities of materials is also situated at CAMS.

2. Micromass Isoprime isotope ratio mass spectrometer.

3. Exeter 440 CHN Analyzer

4. Pharmacia Biotech Wallac 1410 liquid scintillation counter.

5. Branson Sonifier 450 equipped with a cup-horn.

6. Agilent HPLC, which includes, fluorescent and diode array detectors, thermostated column guard, auto sampler, binary pump, degasser, ALS thermostat, and HP laser jet printer. Another HPLC is used for radiolabeled materials and is also linked to an online Inus radioanalytic beta-detector for on-line analysis of radiolabeled compounds.

7. A Shimadzu UV/VIS spectrophotometer.

8. Biorad isoelectric focusing, rotofor, tubegel and elution equipment. Two dimensional gel electrophoresis equipment, including a Lauda water bath for cooling.

One laboratory is dedicated to the conversion of samples to uniform solids for AMS measurement: filamentous graphite for 14C and titanium hydride for 3H. This laboratory contains three ovens for sample oxidation and reductions, two tabletop vacuum pumping systems and an oxygen:acetylene torch for the sealing of quartz and Pyrex tubes under vacuum.


For information about this page contact:
Karolyn Burkhart-Schultz, burkhartschultz1@llnl.gov
UCRL-MI-140299