Rapid and simple analysis of trace levels of three explosives in soil by liquid chromatography - tandem mass spektrometry

• Autorzy: Yenel G. F. , Anilanmert B. , Cengiz S.

Identyfikatory

DOI

10.1556/1326.2017.29.1.03

• Języki publikacji: EN

Abstrakty

EN

The analysis of trace levels of explosives in post-blast debris is critical in homeland security, environmental analysis, and crime scene forensic investigations. A fast and a selective determination method with high recovery was developed for the common explosives 2,4,6-trinitrotoluene (TNT), 3,5-trinitro-1,3,5-triazacyclohexane (RDX), and octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) in soil, using liquid chromatography - tandem mass spectrometry (LC-MS/MS). An easy and practical sample preparation method was developed using 4.00 mL acidified acetone with 0.25% HCl. After the easy evaporation of acetone extract, 10 min LC-MS/MS analysis provided a clear separation in column. Short duration of the whole procedure allows the use of this method in routine analysis. As a result of the analysis performed in spiked soils in 50.0, 100.0, and 250.0 ng g ^-1 concentrations, high recoveries such as 100.4 (±8.8)% for RDX, 96.9 (±10.5)% for HMX, and 97.6 (±13.9)% for TNT were obtained. Limit of detection (LOD) and limit of quantification (LOQ) values obtained from the analysis of the spiked soils were 4.3 ng g ^-1 and 7.00 ng g ^-1 for RDX, 6.8 ng g ^-1 and 10.0 ng g ^-1 for HMX, and 18.9 ng g ^-1 and 38.0 ng g ^-1 for TNT, respectively. The Horwitz Ratio (HorRat) calculation was used to evaluate if the inter-day and inter-analyst precisions were in the acceptable limits. The method was successfully applied to three artificial explosion samples for detection of explosives.

Słowa kluczowe

EN

explosive analysis in soil; TNT; RDX; HMX; determination with LC—ESI—MS/MS; validation

• Wydawca: University of Silesia in Katowice ; Akademiai Kiado
• Czasopismo: Acta Chromatographica
• Rocznik: 2017
• Tom: Vol. 29, no. 1
• Strony: 45--56
• Opis fizyczny: Bibliogr. 17 poz., rys., tab.

Twórcy

autor

Yenel G. F.

• Istanbul University Institute of Forensic Sciences, 34303, Cerrahpasa/Istanbul, Turkey

autor

Anilanmert B.

• Istanbul University Institute of Forensic Sciences, 34303, Cerrahpasa/Istanbul, Turkey

autor

Cengiz S.

• Istanbul University Institute of Forensic Sciences, 34303, Cerrahpasa/Istanbul, Turkey

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).