Chemical Analysis of Explosives

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Explosives Chemical Analysis

ALS Environmental provides a comprehensive approach to explosives analysis. ALS Environmental chemists use the following technologies and procedures to enhance our low-level explosives analysis:

  • Solid Phase Extraction (SPE)
  • Diode Array Detector (DAD)
  • Second Column/Detector Confirmation

Analytical testing dotsSolid Phase Extraction (SPE)

Explosives AnalysisSolid Phase Extraction technology allows for extremely efficient extractions, consistently achieving early 100% recoveries for all analytes. This is a marked improvement over the salting-out liquid-liquid extraction proposed in EPA Method 8330. SPE technology also allows the analyst to process samples using minimal solvent, in keeping with current waste minimization programs.

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Diode Array Detector (DAD)

Diode Array Detector technology allows the analyst to enhance overall data quality by performing peak purity analysis and acquisition of UV spectra for spectral confirmation.

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Second Column/Detector Confirmation

Second Column/Detector Confirmation is required by EPA methods. ALS Environmental employs CN column
confirmation supplemented by GC/MS for confirmation of detections above the MRL.

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EPA Method 8330 - Method Detection Limits (MDLs)

Analytes Soil (mg/Kg) Water (μg/L) Tissue (mg/Kg)
Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) 0.07 0.5 0.05
Hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) 0.2 0.4 0.08
1,3,5-Trinitrobenzene 0.09 0.4 0.05
Methyl-2,4,6-trinitrophenylnitramine (Tetryl) 0.2 0.4 0.07
1,3-Dinitrobenzene 0.09 0.3 0.06
Nitrobenzene 0.1 0.5 0.06
4-Amino-2,6-dinitrotoluene 0.1 0.5 0.05
2-Amino-2,6-dinitrotoluene 0.1 0.5 0.08
2,6-Dinitrotoluene 0.1 0.4 0.08
2,4-Dinitrotoluene 0.06 0.3 0.08
2-Nitrotoluene 0.09 0.3 0.05
4-Nitrotoluene 0.1 0.5 0.2
3-Nitrotoluene 0.08 0.3 0.1
ALS Environmental SOP* HPLC Method Detection Limits (MDLs)
Nitroguanidine 34 2 -
EPA Method 8330M Method Detection Limits (MDLs)
Picramic Acid 0.3 3 -
Picric Acid 0.04 0.5 -
EPA Method 8332 Method Detection Limits (MDLs)
Nitroglycerin 0.5 0.7 1
Pentaerythritol Tetranitrate 0.5 0.8 1

 

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ALS Environmental's Middletown, PA laboratory also offers explosives by Method 8330B. Learn more about their capabilities

Learn more about Method 8330B

Learn more about Explosives Testing...