Quantification of nitroaromatic explosives in contaminated soil using MALDI-TOF mass spectrometry.

ABSTRACT: Contamination from various sources is a global environmental and health threat, with mining and military activities in particular having spread nitroaromatic compounds, such as 2,4,6-trinitrotoluene and its degradation products and by-products, to the soil. The investigation and monitoring of large contaminated areas requires new detection methods since the established ones are expensive and time-consuming. Hence, we established a matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) method using 1,5-diaminonaphthalene as the matrix substance and an internal standard for quantification. Analyzing standard substances, we found specific signals for radical and fragment ions of different nitrotoluenes and nitrobenzenes with good reproducibility and detect

SUBMITTER: Kober SL 

PROVIDER: S-EPMC6706601 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature