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Determination of ethylene glycol dinitrate in dynamites using HPLC: Application to the plastic explosive Goma‐2 ECO
Author(s) -
Sáiz Jorge,
Bravo Juan Carlos,
Ávila Esperanza Velasco,
Torre Mercedes,
GarcíaRuiz Carmen
Publication year - 2011
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.201100523
Subject(s) - dynamite , chromatography , repeatability , detection limit , ethylene glycol , high performance liquid chromatography , methanol , materials science , linearity , chemistry , analytical chemistry (journal) , explosive material , engineering , electrical engineering , organic chemistry
In this study, a sequential extraction method using water and methanol to recover ethylene glycol dinitrate or nitroglycol (EGDN) contained in Goma‐2 ECO dynamite was developed. After, an HPLC method was used for the determination of EGDN in the two extracted phases. The analytical method was validated by evaluating its selectivity, sensitivity, linearity, and linear working concentration range, limit of detection and quantitation, precision (as repeatability and intermediate precision), accuracy, and robustness, providing appropriate values (i.e. RSD values for precision about 6% and accuracy about 100%). Finally, the EGDN content of a sample of the Goma‐2‐ECO dynamite was determined obtaining a concentration of 30.29%, which is in accordance with the manufacturer's specifications for this dynamite (25.7–31.4%).