Gas-chromatographic determination of traces of O-isopropyl methylphosphonofluoridate (sarin) in soils using its diastereomers

Stan'kov, I. N.; Kondrat’ev, V. B.; Tsekhmister, V. I.; Derevyagina, I. D.; Садовников, С. В.; Morozova, O. T.; Selivanova, V. I.; Кузьмина, Н. Е.; Karaseva, I. E.

doi:10.1134/s1061934810110080

Cited by 8 publications

(7 citation statements)

References 3 publications

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“…Consequently, it is very probable that the diastereomers with the smaller dis tance between the chiral centers can be separated easier using achiral SLP. The dependence of the separation coefficient α inside the row of compounds with one atom between the symmetry centers correlates with the branching of the hydrocarbon radicals R and R' and other, as it was noted in [8,11].…”

Section: Selection Of the Bifunctional Reagent And The Condi Tions Fomentioning

confidence: 55%

“…In the studies [1,8,11], the separating agents were phosgene, carbon disulfide, bromochloromethane, the dimethyl sulfoxide-trimethylchlorosilane system, dimethyldi chlorosilane, 1,2 dibromoethane. These reagents were successfully used for the separation of optically active amino acids, amines, and 2 octanol [1,7,8].…”

Section: Selection Of the Bifunctional Reagent And The Condi Tions Fomentioning

confidence: 99%

“…Study [11] provides mathematical foundation for the fact that, if two peaks of diastereomer pairs are reg istered in chromatograms, the precision of the identi fication in complex matrices by three parameters (elu tion time of diastereomers τ 1 and τ 2 and the equality of the peak areas) is close to unity. The presence of three peaks of diastereomer pairs in the chromatogram sug gests an increase in the reliability of their identifica tion and, consequently, the possibility of using any detecting device.…”

Section: Selection Of the Bifunctional Reagent And The Condi Tions Fomentioning

confidence: 99%

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Enantiomeric analysis of chiral compounds using phosphorus acid chlorides

et al. 2013

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New achiral separating bifunctional reagents, dichlorides of methylphosphonic and O ethyl thio phophoric acids, have been used for the quantitative determination of the enantiomeric composition of α amino acids (alanine, valine, proline), secondary alcohols (2 octanol, 2 pentanol, 1 methoxy 2 pro panol) and α phenylethylamine. The determination of the enantiomeric composition of optically active α amino acids, secondary alcohols, and amines is based on the transformation of compounds into symmetric diastereometers using organophosphorous achiral bifunctional reagents followed by the determination of the derivatives by gas chromatography with a mass spectral detector.

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Section: Selection Of the Bifunctional Reagent And The Condi Tions Fomentioning

confidence: 55%

Section: Selection Of the Bifunctional Reagent And The Condi Tions Fomentioning

confidence: 99%

Section: Selection Of the Bifunctional Reagent And The Condi Tions Fomentioning

confidence: 99%

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Enantiomeric analysis of chiral compounds using phosphorus acid chlorides

et al. 2013

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“…During the past few decades, various sensor technologies for detecting chemical warfare agents (CWAs) have been developed using infrared and Raman spectroscopy for remote monitoring, , ion mobility spectroscopy, flame photometry, photoionization, electrochemical detection, and surface acoustic wave (SAW) detection …”

Section: Introductionmentioning

confidence: 99%

Single-Walled Carbon-Nanotube-Based Chemocapacitive Sensors with Molecular Receptors for Selective Detection of Chemical Warfare Agents

Song

Cho

et al. 2018

ACS Appl. Nano Mater.

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Single-walled carbon nanotubes (SWCNTs) were fabricated using AC dielectrophoresis into chemocapacitive sensors, and molecular receptors were applied for the selective detection of several chemical warfare agents (CWAs). The selective responses toward nerve simulants (G and V), choking and blister agents as well as a pesticide were investigated with specific receptor molecules that were either covalently functionalized or noncovalently coated onto the surfaces of the SWCNTs. The SWCNT-based chemocapacitive sensors showed reproducibility and sensitivity to 200 ppb for several target molecules. The fabricated sensor arrays were assessed for the selective detection of six different CWAs, and the principal component analysis demonstrated their specificity. VX, a real nerve agent, was tested on the fabricated SWCNT-based chemocapacitive sensor coated with a thiourea-functionalized siloxane polymer, and the successful detection of VX at 100 ppb confirmed that our SWCNT-based sensors are suitable for practical applications.

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“…In our work, diethyl phosphite (DEP) was used as a phosphorylation agent for the phosphorylation of glycols. The bis(diethoxyphosphoryl)alkanes formed were determined by GC, which was successfully used for the determination of phosphorus-containing pesticides [18] and alkylphosphonic acids [19].…”

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confidence: 99%

Determination of glycols in glycol-containing oligomers using gas-liquid reaction chromatography

et al. 2016

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A method is proposed for the gas-chromatographic determination of glycols as bis(diethoxyphosphoryl)alkanes formed by the Atherton-Todd reaction with diethyl phosphite. Gas-chromatographic and mass-spectrometric characteristics of the derivatives obtained are studied. Conditions of the phosphorylation reaction are optimized. The method is applied to the determination of the residual amounts of glycols in oligomeric glycol-o-phthalates.

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Gas-chromatographic determination of traces of O-isopropyl methylphosphonofluoridate (sarin) in soils using its diastereomers

Cited by 8 publications

References 3 publications

Enantiomeric analysis of chiral compounds using phosphorus acid chlorides

Enantiomeric analysis of chiral compounds using phosphorus acid chlorides

Single-Walled Carbon-Nanotube-Based Chemocapacitive Sensors with Molecular Receptors for Selective Detection of Chemical Warfare Agents

Determination of glycols in glycol-containing oligomers using gas-liquid reaction chromatography

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