Surface decontamination efficacy determination of DeconGelTM 1101 on stainless steel, aluminum, and concrete surfaces contaminated with amine compounds (aniline) was performed using GC/MS (Gas Chromatography/Mass Spectrometry) according to Environmental Protection Agency (EPA) SW-846 Methods: 3500C (Sampling) and 8270C (Analysis).
Hazardous Materials Relevance
Aniline is a volatile aromatic amine used mainly as a chemical feedstock to produce plastics including polyurethane, and used as a rubber additive. Aniline is acutely toxic, and prolonged exposure can result in hemolytic anemia and tumor formation in the spleen. Aniline was chosen as a representative amine compounds (industrial plastics feedstock); DeconGel is expected to have similar efficacy towards the wide range of amine compounds.
- Excellent surface decontamination was achieved by applying DeconGel 1101 onto surfaces contaminated with amine compounds (Aniline) resulting in encapsulation of contaminants by DeconGel’s active components. Decontamination efficacies of DeconGel 1101 were 100% for aniline on all surfaces evaluated including concrete, stainless steel and aluminum as determined by residual swipe analysis.
- Optimized experimental and analytical methods were successfully developed following standardized EPA sampling and analysis methods as guidelines for determination of organic compounds dissolved in a suitable solvent able to completely solvate aniline as well as DeconGel components. When deemed necessary, experimental methods were customized to afford complete dissolution of organic contaminants. Additionally, analytical methods and associated equipment -GC column, GC temperature gradient program, MS sample ionization parameters- were appropriately developed to ensure accurate decontamination efficacy determination of DeconGel.
Table 1 shows the decontamination efficacies of DeconGel 1101 on stainless steel, aluminum, and concrete surfaces contaminated with amine compounds (aniline) as determined by residual swipe testing.