Mass spectrometry in environmental organic analysis

Barceló, Damià

doi:10.1016/0003-2670(92)85420-b

Cited by 49 publications

(8 citation statements)

References 124 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Additional adduct ions were also formed due to the presence of propionic acid at the electrospray tip. Fast atom bombardment mass spectrometry (FAB‐MS) of paraquat generated singly charged ions, [M] +· and [M − CH 3 ] + , at m/z 186 and 171, respectively 30. Secondary ion mass spectrometry (SIMS) was used for direct analysis of pesticides on the surface of soil particles and leaves 31.…”

Section: Resultsmentioning

confidence: 99%

Laser desorption/ionization coupled to tandem mass spectrometry for real-time monitoring of paraquat on the surface of environmental particles

Lazar

Reilly

Whitten

et al. 2000

Rapid Commun. Mass Spectrom.

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 99%

Laser desorption/ionization coupled to tandem mass spectrometry for real-time monitoring of paraquat on the surface of environmental particles

Lazar

Reilly

Whitten

et al. 2000

Rapid Commun. Mass Spectrom.

View full text Add to dashboard Cite

“…Usually, CI proceeds due to the ion-molecule interactions between the neutral molecules of the analyzed compounds and the reagent gas ions that are formed by electron bombardment of a reagent gas. Chemical ionization is considered to be a soft ionization technique, because the energy transmitted to the ions is moderate, and the ion species with an even number of electrons are more stable than those with an odd number that are formed with EI (Barcelo, 1992;Harrison, 1992). Therefore, CI mass spectra contain molecular ions.…”

Section: A Most Prevalent Ionization Modes In Gc/msmentioning

confidence: 99%

Determination of polychlorinated dibenzo‐p‐dioxins, dibenzofurans, and biphenyls by gas chromatography/mass spectrometry in the negative chemical ionization mode with different reagent gases

Chernetsova

Revelsky

et al. 2002

Mass Spectrometry Reviews

View full text Add to dashboard Cite

Reagent gases that are used in mass spectrometry in the NCI mode for the determination of polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs), and biphenyls (PCBs) are discussed. Ion-molecule reactions and respective characteristic ions that form while using reagent gases (CH(4), O(2), i-C(4)H(10), NH(3), H(2), He, Ar, Xe, SF(6)) or gas mixtures (CH(4)/O(2), Ar/CH(4), CH(4)/H(2)O, Ar/O(2), i-C(4)H(10)/CH(2)Cl(2)/O(2)) are reviewed. It is shown that only CH(4), O(2), CH(4)/O(2), and CH(4)/N(2)O are widely used and well studied, even though-in the case of these reagent gases-there are contradictions between the publications of various authors. Such reagent gases as NH(3) and He are not well studied, but further investigations of their use for the determination of organochlorine pollutants could be of interest. The possibilities of more sensitive and selective determination of PCDDs, PCDFs, and PCBs are discussed.

show abstract

“…3,10 Other non-ionic surfactants such as alkyphenol ethoxylates 13,14 and alcohol ethoxylates 15 with similar characteristics to ANEO compounds have been widely characterised by LC/MS and determined mainly in environmental samples. Considering the effectiveness of LC/MS in determining alkyphenol ethoxylates and the methods previously reported for the determination of ANEOs, this technique seems to be the most suitable 16,17 as MS is able to identify the different alkylamine homologues. The aim of the present study is to develop an analytical method based on LC/MS that provides rapid structural and quantitative information regarding the surfactants (ANEOs) present in glyphosate formulations, including the distribution of alkyl chains, ethoxylated chains and unsaturated alkyl chains.…”

mentioning

confidence: 99%

Characterisation of alkylamine ethoxylates (ANEOs) in commercial herbicide formulations using liquid chromatography/electrospray ionisation mass spectrometry

Corbera

Simonet

Salvadó

et al. 2010

Rapid Comm Mass Spectrometry

View full text Add to dashboard Cite

A quantitative method is described for the characterization of alkylamine ethoxylate (ANEO) surfactants in commercial herbicide formulations using reversed-phase high-performance liquid chromatography with electrospray ionization mass spectrometric detection. The proposed protocol allows the simultaneous determination of a full range of oligomers which were monitored as [M-H](+) ions in positive ion mode. The instrumental detection limits (LODs) were 0.5 µg. The method developed was successfully applied to the determination of ANEOs in a number of glyphosate formulations. Both the total concentration of these surfactants and the oligomer distribution varied between the different commercial herbicides analysed. The precision of the determination of the oligomers in samples ranged from 0.5 to 15%.

show abstract

Mass spectrometry in environmental organic analysis

Cited by 49 publications

References 124 publications

Laser desorption/ionization coupled to tandem mass spectrometry for real-time monitoring of paraquat on the surface of environmental particles

Laser desorption/ionization coupled to tandem mass spectrometry for real-time monitoring of paraquat on the surface of environmental particles

Determination of polychlorinated dibenzo‐p‐dioxins, dibenzofurans, and biphenyls by gas chromatography/mass spectrometry in the negative chemical ionization mode with different reagent gases

Characterisation of alkylamine ethoxylates (ANEOs) in commercial herbicide formulations using liquid chromatography/electrospray ionisation mass spectrometry

Contact Info

Product

Resources

About