Overestimation of nitrate and nitrite concentrations in water samples due to the presence of nitroglycerin or hexahydro-1,3,5-trinitro-1,3,5-triazine

Bordeleau, Geneviève; Martel, Richard; Lévesque, Richard; Ampleman, Guy; Thiboutot, Sonia; Marois, Andre

doi:10.1016/j.chroma.2012.06.082

Cited by 8 publications

(7 citation statements)

References 17 publications

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“…The remaining solutions were then filtered on Sep-Pak® Vac 12 cm 3 /2 g tC18 cartridges (Waters, Mississauga, ON) to remove NG and DNG from solution, before analyzing nitrate and nitrite by ion chromatography. The extraction of NG/DNG prior to nitrate/nitrite analysis was necessary, because their presence would cause an overestimation of the nitrate/nitrite concentrations (Bordeleau et al, 2012). The insoluble residues in the vials were then dried, and the NG concentration in the dry residues was measured by HPLC.…”

Section: Propellant Residue Samplingmentioning

confidence: 99%

The fate and transport of nitroglycerin in the unsaturated zone at active and legacy anti-tank firing positions

Bordeleau

Martel

Ampleman

et al. 2012

Journal of Contaminant Hydrology

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Section: Propellant Residue Samplingmentioning

confidence: 99%

The fate and transport of nitroglycerin in the unsaturated zone at active and legacy anti-tank firing positions

Bordeleau

Martel

Ampleman

et al. 2012

Journal of Contaminant Hydrology

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“…Natural water sample pH and mean major anion composition (± one standard deviation) from n = 7 replicate measurements. Previous work has indicated that the presence of nitroglycerin and RDX can lead to an overestimate of nitrate and nitrite in water samples due to alkaline hydrolysis of these compounds during IC analysis (Bordeleau et al 2012). Linear regressions of mean NTO and nitrate concentrations among the four spike levels for each natural water matrix did not yield slopes significantly different from zero (Figure 3), suggesting that the presence of NTO did not affect measured nitrate.…”

Section: Watersmentioning

confidence: 79%

Environmental analysis of aqueous 3-nitro-1,2,4-triazol-5-one (NTO) by ion chromatography with conductivity detection

Beal¹,

Taylor²,

Crouch³

et al. 2020

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The newly fielded insensitive high-explosive compound 3-nitro-1,2,4-triazol-5-one (NTO) is mobile in the environment due to its high water solubility and low affinity for soils. The weak acidity of NTO (pKa 3.67) presents a challenge to environmental analysis by high-performance liquid chromatography but enables direct separation by ion chromatography (IC). Here we developed an IC method for NTO in natural water, soil, and postdetonation residue. A gradient potassium hydroxide separation effectively resolved the inorganic anions (F − , Cl − , NO2 − , Br − , SO4 2− , NO3 − , and PO4 3−) and NTO in 18 minutes. Suppressed conductivity of aqueous NTO was linear from 10 µg/L to 10 mg/L with a detection limit of 3 µg/L and quantitation limit of 9 µg/L. Recoveries of NTO-spiked natural water samples were 93%-118% at concentrations of 30, 100, and 500 µg/L. Recoveries of NTO-spiked soil samples were 91%-114% using deionized water (DI) extraction. NTO was completely recovered with DI-extraction in two postdetonation residue samples of IMX-101 but only partially recovered (58% and 69%) in two higher-concentration residues, potentially due to incomplete dissolution of the energetic particle matrix. These results support IC for confirmation analysis of environmental samples and for screening natural water samples while simultaneously analyzing inorganic ions. DISCLAIMER: The contents of this report are not to be used for advertising, publication, or promotional purposes. Citation of trade names does not constitute an official endorsement or approval of the use of such commercial products. All product names and trademarks cited are the property of their respective owners. The findings of this report are not to be construed as an official Department of the Army position unless so designated by other authorized documents.

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“…The detection limits were 0.05 mg L −1 NO 3 − and 0.01 mg L −1 NO 2 − . However, the presence of NG in water samples is known to cause an overestimation of the NO 3 − /NO 2 − concentrations (Bordeleau et al, 2012b). To correct for this, the measured NO 3 − and NO 2 − concentrations were combined and corrected according to the appropriate regression coefficients (Bordeleau et al, 2012b).…”

Section: Methodsmentioning

confidence: 99%

Biodegradation of Nitroglycerin from Propellant Residues on Military Training Ranges

et al. 2014

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Nitroglycerin (NG) is often present in soils and sometimes in pore water at antitank firing positions due to incomplete combustion of propellants. Various degradation processes can contribute to the natural attenuation of NG in soils and pore water, thus reducing the risks of groundwater contamination. However, until now these processes have been sparsely documented. This study aimed at evaluating the ability of microorganisms from a legacy firing position to degrade dissolved NG, as well as NG trapped within propellant particles. Results from the shake-flask experiments showed that the isolated culture is capable of degrading dissolved NG but not the nitrocellulose matrix of propellant particles, so that the deeply embedded NG molecules cannot be degraded. Furthermore, the results from column experiments showed that in a nutrient-poor sand, degradation of dissolved NG may not be sufficiently rapid to prevent groundwater contamination. Therefore, the results from this study indicate that, under favorable soil conditions, biodegradation can be an important natural attenuation process for NG dissolving out of fresh propellant residues. In contrast, biodegradation does not contribute to the long-term attenuation of NG within old, weathered propellant residues. Although NG in these old residues no longer poses a threat to groundwater quality, if soil clean-up of a legacy site is required, active remediation approaches should be sought.

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Overestimation of nitrate and nitrite concentrations in water samples due to the presence of nitroglycerin or hexahydro-1,3,5-trinitro-1,3,5-triazine

Cited by 8 publications

References 17 publications

The fate and transport of nitroglycerin in the unsaturated zone at active and legacy anti-tank firing positions

The fate and transport of nitroglycerin in the unsaturated zone at active and legacy anti-tank firing positions

Environmental analysis of aqueous 3-nitro-1,2,4-triazol-5-one (NTO) by ion chromatography with conductivity detection

Biodegradation of Nitroglycerin from Propellant Residues on Military Training Ranges

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