The Wan-Tokunaga Lab

Facilities

Facilities & Resources

Laboratories operated by Jiamin Wan and Tetsu Tokunaga support experiments on colloid transport, multiphase fluid flow, surface chemistry, geochemistry, and reactive transport, at ambient and elevated pressures and temperatures.

In our own labs:

Analytical:

  • Organic carbon analyzer:  Shimadzu TOC-V
  • Liquid scintillation analyzer:  Perkin Elmer Tricarb 2900TR
  • Kinetic phosphorescence analyzer (uranium), KPA-11 (Chemchek)
  • X-ray fluorescence analyzer:  Orbis (EDAX)
  • UV-Vis spectrophotometer
  • Titrator:  Metrohm 848 Titrino Plus
  • pH/mV meters

Particles and Surfaces:

  • Particle-size and zeta potential:  Zeta Plus, Brookhaven Instruments
  • Particle-sizer:  CPS disc centrifuge
  • Tubidimeter:  Hach
  • Interfacial tension:  Kruss K10ST tensiometer
  • Contact angle goniometer:  Rame-Hart

Microscopes: (all with Digital Image Capturing)

  • Zeiss Axioskop
  • Zeiss Axio, inverted
  • Zeiss Stemi-2000C

Matric and Water Potential:

  • Tensiometers: Soil Measurement Systems,  Soilmoisture Equipment Corp.
  • Pressure cells:  Soilmoisture Equipment Corp. (0.5, 1, 5, 15 atm)
  • Psychrometer: Decagon CX2,

Pressure Vessels

  • High pressure cells (350 atm, Temco)
  • Low pressure cells (0.5, 1, 5, 15 atm, Soilmoisture Equipment)

Pressure and Flow, Control and Measurement:

  • Validyne DP transducers and signal processors
  • Quizix high-pressure pump
  • Isco high-pressure syringe pumps
  • Harvard syringe pumps

Temperature Control:

  • Incubators
  • Water baths
  • Ovens and Furnace (Sentro Tech)

High Pressure Core Flooding Facility:

highpressurefacility

High Pressure Microscopy-Micromodel Facility:

microscopy

High Pressure Capillary-Saturation Facility:

capillary_sat

High Pressure Contact Angle and Interfacial Tension:

high_press_contact

Access to User Facility Resources:

  • Atomic force microscope (AFM)
  • X-ray Photoelectron Spectroscopy (XPS)
  • SEM and TEM
  • Electron energy loss spectroscopy (EELS)

These tools are in LBNL’s User Facilities, the Molecular Foundry: (http://foundry.lbl.gov/facilities/imaging_and_manipulation_of_nanostructures/expertise.html)

  • Synchrotron facilities we use: Advanced Photon Source (Argonne National Laboratory), Advanced Light Source (LBNL), Stanford Synchrotron Radiation Lightsource, National Synchrotron Light Source II (Brookhaven National Laboratory)
  • X-ray CT: Earth Sciences Division facility