Testing Services
Common Testing Packages
Gasoline Age Dating
| ANALYSIS DESCRIPTION | METHOD | |
|---|---|---|
| Identification and analyses to support age dating and source delineations of leaded and unleaded gasoline releases | ||
| High resolution gas chromatographic fingerprint (C5–C15) | ASTM D7096-10 | |
| Detailed hydrocarbon analysis (DHA/PIANO) | ASTM D6730-01 Cryogenic | |
| Forensic VOCs at gasoline contaminated sites | GC/MS | |
| Total lead and manganese | EPA 6020 | |
| Filtered total lead and manganese | EPA 6020 | |
| Organic lead and manganese speciation | GC/ECD | |
Diesel Fuel Age Dating
| ANALYSIS DESCRIPTION | METHOD | |
|---|---|---|
| Identification and analyses to support age dating and source delineations of leaded and unleaded gasoline releases | ||
| High resolution gas chromatographic fingerprint (C5–C44) including weathering assessment as well as biodiesel screen | ASTM D2887-14 | |
| Quantitation of medium to high boiling material (C10–C36) | EPA 8015M | |
| Forensic Parent and alkylated PAHs (PAH Homologs) | EPA 8270D Mod | |
| Total Sulfur by UV Fluorescence | ASTM D5453 | |
Manufactured Gas Plant (MGP) Investigation
| ANALYSIS DESCRIPTION | METHOD | |
|---|---|---|
| Analyses to support source delineations of contaminants from MGP Facilities. | ||
| High resolution gas chromatographic fingerprint (C5–C44) | ASTM D2887-14 | |
| Forensic VOCs for unidentified contaminants or custom analyte list | GC/MS | |
| Forensic Parent and Alkylated PAHs (PAH Homologs) and isoprenoid evaluation | EPA 8270E Mod | |
| Cyanide | EPA 9040/9045 | |
| Arsenic | EPA 6020 | |
| Total Sulfur by UV Fluorescence | ASTM D5453 | |
Manufacturing Batch Analysis
| ANALYSIS DESCRIPTION | METHOD | |
|---|---|---|
| Analyses to support the determination of catastrophic vs ongoing releases of petroleum products. | ||
| High resolution gas chromatographic fingerprint (C5–C44) | ASTM D2887-14 | |
| Forensic VOCs for unidentified contaminants or custom analyte list | GC/MS | |
| Forensic Parent and alkylated PAHs (PAH Homologs) | EPA 8270E Mod | |
| Quantitation of medium to high boiling material (C10–C36) | EPA 8015M | |
Chlorinated Solvent Investigation
| ANALYSIS DESCRIPTION | METHOD | |
|---|---|---|
| Analyses to support source delineation and age dating of a chlorinated solvent impacted site. | ||
| DNAPL fingerprint | GC/MS | |
| Forensic VOCs for unidentified contaminants or custom analyte list | GC/MS | |
| Full list SVOCs | EPA 8270E | |
Individual Analyses
| High Resolution Gas Chromatographic Fingerprint for Gasoline and Other Low Boiling Materials (ASTM D7096-10) Identification and characterization of material eluting from C5 – C15 including, but not limited to, automotive gasoline, aviation gasoline, naphtha, refinery intermediates, light oil, and other light refined petroleum products and tar distillates. |
| High Resolution Gas Chromatographic Fingerprint for Diesel Fuel, Crude Oil and Other Medium to High Boiling Materials (ASTM D2887-14) Identification and characterization of material eluting from C5 – C44 including, but not limited to, crude oil, refinery intermediates, petroleum products such as kerosene, jet fuels, diesel fuel, heating oil, lubricating oil, and residual fuel oils, and pyrogenic materials such as coal tar and creosote. May be useful in screening unknown materials. |
| Gas Chromatograph/Electron Capture Detector (GC/ECD) Fingerprint Identification of material detectable by GC/ECD including, but not limited to, halogenated solvents, polychlorinated biphenyls (PCBs), organohalides, pesticides, and other heteroatom-containing materials. |
| Detailed Hydrocarbon Analysis (DHA) With Cryogenic Oven (ASTM D6730-01 Cryogenic) Detailed GC analysis of the chemical composition of hydrocarbons and related chemicals eluting from C5 – C12 including gasoline, naphtha, and other low boiling products. Differentiates 160 volatile constituents commonly found in gasoline into five groups known as PIANO (paraffins, isoparaffins, aromatics, naphthenes, and olefins). Used for product identification and characterization, weathering evaluations, age dating, and rate loss determinations. Use of a cryogenic cooled oven allows for enhanced sensitivity, lower detection limits, and improved resolution of critical analyte pairs. |
| Forensic Volatile Organic Compound (VOC) Testing (EPA 8015M, NWTPH-Gx, EPA 8260D) VOC testing of gasoline contaminated sites includes GC/MS analysis of hydrocarbons and related chemicals eluting from C5 – C12, including blending components (oxygenates and ethanol) and lead scavengers (EDB/EDC), plus a scan for over 70,000 compounds including butane, pentane and isooctane listed in GC/MS library. This analysis also includes quantitation of low boiling material (C6–C10). Forensic VOCs for unidentified contaminants or custom analyte list includes GC/MS analysis of hydrocarbons and related chemicals eluting from C5 – C12 plus a GC/MS library scan. Analyses may be useful in material identification and characterization, weathering evaluations, age dating, and source identification. The water soluble fraction extraction may be useful in characterizing the dissolved phase VOCs of soil or product samples for comparison to groundwater samples for source delineation. |
| Parent & Alkylated PAHs (EPA 8270E Mod) GC/MS analysis used to generate PAH “fingerprints” which can be useful in evaluating whether the contamination present is due to a catastrophic release of fuel or an ongoing release (Batch Analysis). Analysis may also be of use in characterizing pyrogenic vs petrogenic PAHs in samples. |
| Organometallic Additive Testing (GC/ECD) Quantitation of the level of speciated organic lead and manganese additives (such as TEL and MMT) using GC/ECD. May be useful in age dating leaded gasoline releases. |
| Quantitation of Low, Medium and High Boiling Material (EPA 8015M, EPA 3630, NWTPH-Dx) Determination of the level of low, medium and high boiling range organic compounds using GC/FID. Cleanup of the sample extract with a silica gel column may be useful in generally characterizing polar, semi-polar and nonpolar contaminant fractions. |
Individual Analyses
High Resolution Gas Chromatographic Fingerprint for Gasoline and Other Low Boiling Materials (ASTM D7096-10)
| ANALYSIS DESCRIPTION | METHOD | |
|---|---|---|
| Identification and characterization of material eluting from C5–C15 including, but not limited to, automotive gasoline, aviation gasoline, naphtha, refinery intermediates, light oil, and other light refined petroleum products and tar distillates. | ||
| High resolution gas chromatographic fingerprint (C5–C15) | ASTM D7096-10 | |
High Resolution Gas Chromatographic Fingerprint for Diesel Fuel, Crude Oil and Other Medium to High Boiling Materials (ASTM D2887-14)
| ANALYSIS DESCRIPTION | METHOD | |
|---|---|---|
| Identification and characterization of material eluting from C5–C44 including, but not limited to, crude oil, refinery intermediates, petroleum products such as kerosene, jet fuels, diesel fuel, heating oil, lubricating oil, and residual fuel oils, and pyrogenic materials such as coal tar and creosote. May be useful in screening unknown materials. | ||
| High resolution gas chromatographic fingerprint (C5–C44) | ASTM D2887-14 | |
Gas Chromatograph/Electron Capture Detector (GC/ECD) Fingerprint
| ANALYSIS DESCRIPTION | METHOD | |
|---|---|---|
| Identification of material detectable by GC/ECD including, but not limited to, halogenated solvents, polychlorinated biphenyls (PCBs), organohalides, pesticides, and other heteroatom-containing materials. | ||
| GC/ECD Fingerprint | GC/ECD | |
Detailed Hydrocarbon Analysis (DHA) With Cryogenic Oven (ASTM D6730-01 Cryogenic)
| ANALYSIS DESCRIPTION | METHOD | |
|---|---|---|
| Detailed GC analysis of the chemical composition of hydrocarbons and related chemicals eluting from C5 – C12 including gasoline, naphtha, and other low boiling products. Differentiates 160 volatile constituents commonly found in gasoline into five groups known as PIANO (paraffins, isoparaffins, aromatics, naphthenes, and olefins). Used for product identification and characterization, weathering evaluations, age dating, and rate loss determinations. Use of a cryogenic cooled oven allows for enhanced sensitivity, lower detection limits, and improved resolution of critical analyte pairs. | ||
| Detailed hydrocarbon analysis (DHA) | ASTM D6730-01 Cryogenic | |
Forensic Volatile Organic Compound (VOC) Testing (EPA 8015M, NWTPH-Gx, EPA 8260D)
| ANALYSIS DESCRIPTION | METHOD | |
|---|---|---|
| VOC testing of gasoline contaminated sites includes GC/MS analysis of hydrocarbons and related chemicals eluting from C5 – C12, including blending components (oxygenates and ethanol) and lead scavengers (EDB/EDC), plus a scan for over 70,000 compounds including butane, pentane and isooctane listed in GC/MS library. This analysis also includes quantitation of low boiling material (C6–C10). Forensic VOCs for unidentified contaminants or custom analyte list includes GC/MS analysis of hydrocarbons and related chemicals eluting from C5 – C12 plus a GC/MS library scan. Analyses may be useful in material identification and characterization, weathering evaluations, age dating, and source identification. The water soluble fraction extraction may be useful in characterizing the dissolved phase VOCs of soil or product samples for comparison to groundwater samples for source delineation. | ||
| Forensic VOCs for gasoline contaminated sites | GC/MS | |
| Forensic VOCs for unidentified contaminants or custom analyte list | GC/MS | |
| Water soluble fraction extraction | ||
Parent & Alkylated PAHs (EPA 8270D)
| ANALYSIS DESCRIPTION | METHOD | |
|---|---|---|
| GC/MS analysis used to generate PAH “fingerprints” which can be useful in evaluating whether the contamination present is due to a catastrophic release of fuel or an ongoing release (Batch Analysis). Analysis may also be of use for samples potentially impacted by MGP sites to evaluate pyrogenic versus petrogenic. | ||
| Forensic Parent and alkylated PAHs (PAH Homologs) and isoprenoid evaluation | EPA 8270E Mod | |
Organometallic Additive Testing (GC/ECD)
| ANALYSIS DESCRIPTION | METHOD | |
|---|---|---|
| Quantitation of the level of speciated additives (such as TEL and MMT) using GC/ECD. May be useful in age dating leaded gasoline releases. | ||
| Organic lead and manganese speciation | GC/ECD | |
Quantitation of Low, Medium and High Boiling Material (EPA 8015M, EPA 3630, NWTPH-Dx)
| ANALYSIS DESCRIPTION | METHOD | |
|---|---|---|
| Determination of the level of low, medium and high boiling range organic compounds using GC/FID. Cleanup of the sample extract with a silica gel column may be useful in generally characterizing polar, semi-polar and nonpolar contaminant fractions. | ||
| Quantitation of low boiling material (C6–C10) | EPA 8015M | |
| Quantitation of medium to high boiling material (C10–C36) | EPA 8015M | |
| Quantitation of medium to high boiling material (C10–C36) with silica gel column | EPA 8015M / EPA 3630 | |