Environmental Chemistry Laboratory
Chemical analysis has long been an integral component of complete water and sediment quality
assessments. At GLEC we have the experienced staff, equipment, and resources necessary to
conduct environmental chemistry evaluations, either in support of other programs or as standalone
projects. GLEC has completed numerous integrated surveys of large and small water
bodies involving the collection and chemical analysis of water and effluent samples, biological
tissues, and sediment samples for both organic and inorganic constituents. GLEC’s chemistry
lab is equipped to conduct low-level nutrient chemistry and a wide array of organic chemistry
analyses. Stringent Quality Assurance/Quality Control (QA/QC) procedures are routinely applied
and Good Laboratory Practices (GLP) are implemented when necessary. All laboratory
practices follow written Standard Operating Procedures.
Inorganic/Nutrient Chemistry Analysis Examples
| PARAMETER |
REPORTING LIMIT |
| Alkalinity |
2 mg/L |
| Biochemical Oxygen Demand |
0.2 mg/L |
| Chloride (Cl-) |
1 mg/L |
| Chlorine, Total Residual |
0.3 mg/L |
| Chlorophyll a |
0.2 μg/L |
| Hardness as CaCO3 |
1 mg/L |
Nitrogen:
Ammonia (NH3-N)
Kjeldahl, Total (TKN)
Nitrate/Nitrite (NO3/NO2-N)
Nitrate (NO3-N)
Nitrite (NO2-N)
Total Nitrogen
|
0.1 mg/L
0.1 mg/L
0.005 mg/L
0.01 mg/L
0.01 mg/L
0.1 mg/L
|
Phosphorus:
Total (TP)
Soluble Reactive (SRP)
|
3 μg/L
3 μg/L
|
| Solids: |
|
Dissolved (TDS )
Suspended (TSS)
|
1 mg/L
1 mg/L |
Analytical Equipment
- Gas Chromatograph/Mass Spectral Detector (GC/MS)
- Gas Chromatograph/Electron Capture Detector (GC/ECD)
- High Performance Liquid Chromatograph (HPLC)
- Gel Permeation Chromatograph (GPC)
- Technicon Autoanalyzer
- Spectrophotometer
- Various Meters with Ion-Selective Electrodes
Contact: Robin Silva-Wilkinson, Principal Research Scientist
Click to Email 231-941-2230
