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 Invenio | Gas cell; thin film and pellet capability | Silica & breathing air analysis |
| GC | Agilent 7890A | 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 | Agilent 7900 | SPS4 autosampler; capable Agilent 1260 HPLC (metals speciation) | Elemental analysis; metal speciation |
| HPLC – Ion Chromatography | Metrohm | 889 autosampler; 887 UV/VIS & 881 conductivity IP Pro; post-column derivatization | Cr(VI); ion chromatography |
| Ion-Chromatography | Dionex Aquion DG CM7-SE | conductivity detector; AS-DV autosampler | Ion chromatography |
| XRD | D2 Phaser Benchtop | 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