The EHL/TOAC laboratories are at 4225 Roosevelt Ave NE, Seattle, WA 98105.
Operations are organized by functional purpose and to allow instrumental analyses without co-location of sample preparation. This is particularly important when working with low concentrations of analytes.
We have five class A general purpose hoods, two acid digestion hoods, and one for bio-hazardous material sample preparation.
Selected Instrumentation:
| Instrument | Model | Features | Uses |
|---|---|---|---|
|
FTIR |
Bruker Tensor 27 |
Gas cell; thin film and pellet capability |
Silica & breathing air analysis |
|
GC |
7693 autosampler; FID; split/splitless inlet |
Organic analysis |
|
|
GC-MS |
Agilent 7890A; Agilent 5973MSD |
multimode inlet (cryo); EI & CI sources; 7693 autosampler |
Organic analysis |
|
GC-MS/MS |
Agilent 7890B; Agilent 7000 Triple Quad |
7673 auto; EI & CI; hexapole collision cell |
Organic analysis |
|
HPLC |
Agilent 1200 Binary PMP |
UV & FL detectors |
Polar & non-volatile organics |
|
HPLC-MS/MS |
Agilent 1290 Infinity II HPLC; Agilent 6460; Agilent 6495 MS-MS |
Jet Stream & ESI Sources |
Polar & non-volatile organics |
|
ICP-MS |
SPS4 autosampler; capable Agilent 1260 HPLC (metals speciation) |
Elemental analysis; metal speciation |
|
|
HPLC – Ion Chromatography |
889 autosampler; 887 UV/VIS & 881 conductivity IP Pro; post-column derivatization |
Cr(VI); ion chromatography |
|
|
Ion-Chromatography |
conductivity detector; AS-DV autosampler |
Ion chromatography |
|
|
XRD |
LynxEye 1-dim detector with axial Soller slit 2.3° and Air-Scatter-Screen |
Silica analysis |
Additional Equipment
| Instrument | Vendor | Features | Uses |
|---|---|---|---|
|
Centrifuge |
Beckman Coulter |
Sample preparation |
|
|
Microbalance |
Mettler UMX-2 |
0.1 µg precision |
Gravimetry |
|
Microwave Digestion Oven |
CEM MARS |
HTV & Xpress vessels |
Microwave-assisted digestion |
|
Muffle furnace |
Thermolyne |
>1000oC; w/eController |
Ashing |
|
Barnstead GenPure xCAD |
Thermo Scientific |
18.2 megohm-cm DI water |
Trace Analyses |
|
TurboVap LV |
Biotage, Zymark |
200 & 50 ml tube sizes; various |
Solvent evaporation |
|
Vacuum ovens |
Fisher/VWR |
Up to 4.5 CF |
Sample preparation |
|
XRF |
Bruker S1 Titan 800 Handheld |
Rh X-ray tube, 5mm spot size, graphene detector window, w/lead in paint software |
Elemental analysis |
Abbreviations
APCI, Atmospheric Pressure Chemical Ionization
ES, Electrospray
ICP, Inductively Coupled Plasma
CI, Chemical Ionization
FID, Flame Ionization Detector
MS, Mass Spectrometer
CF, Cubic Feet
FL, Fluorescence
UV, Ultra-violet
COC, Cold-On-Column
FTIR, Fourier-Transform Spectrophotometer
VIS, Visable
GC, Gas Chromatograph
AFS, Atomic Fluorescence Spectrophotometer
EI, Electron Impact
HPLC, High-Pressure Liquid Chromatograph