PuSH - Publikationsserver des Helmholtz Zentrums München

Export: TXT Text RIS Endnote (RIS) BIB BibTeX
Maier, M. ; Qiu, S. ; Elsner, M.

Enantioselective Stable Isotope Analysis (ESIA) of polar herbicides.

Anal. Bioanal. Chem. 405, 2825-2831 (2013)
DOI PMC
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Assessing the environmental fate of chiral micropollutants such as herbicides is challenging. The complexity of aquatic systems often makes it difficult to obtain hydraulic mass balances, which is a prerequisite when assessing degradation based on concentration data. Elegant alternatives are concentration-independent approaches like compound-specific isotope analysis or enantiospecific concentration analysis. Both detect degradation-induced changes from ratios of molecular species, either isotopologues or enantiomers. A combination of both-enantioselective stable isotope analysis (ESIA)-provides information on C-13/C-12 ratios for each enantiomer separately. Recently, Badea et al. demonstrated for the first time ESIA for the insecticide alpha-hexachlorocyclohexane. The present study enlarges the applicability of ESIA to polar herbicides such as phenoxy acids: 4-CPP ((RS)-2-(4-chlorophenoxy)-propionic acid), mecoprop (2-(4-chloro-2-methylphenoxy)-propionic acid), and dichlorprop (2-(2,4-dichlorophenoxy)-propionic acid). Enantioselective gas chromatography-isotope ratio mass spectrometry was accomplished with derivatization prior to analysis. Precise carbon isotope analysis (2 sigma a parts per thousand currency signaEuro parts per thousand 0.5aEuro degrees) was obtained with a parts per thousand yen7 ng C on column. Microbial degradation of dichlorprop, 2-(2,4-dichlorophenoxy)-propionic acid by Delftia acidovorans MC1 showed pronounced enantiomer fractionation, but no isotope fractionation. In contrast, Badea et al. observed isotope fractionation, but no enantiomeric fractionation. Hence, the two lines of evidence appear to complement each other. They may provide enhanced insight when combined as ESIA.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Scopus
Cited By
Altmetric
3.659
1.266
15
16
Tags
Anmerkungen
Besondere Publikation
Auf Hompepage verbergern

Zusatzinfos bearbeiten
Eigene Tags bearbeiten
Privat
Eigene Anmerkung bearbeiten
Privat
Auf Publikationslisten für
Homepage nicht anzeigen
Als besondere Publikation
markieren
Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Chiral Micropollutants ; Pesticides ; Derivatization ; Isotope Fractionation ; Herbicide ; Bf3; Ratio Mass-spectrometry ; Organic Contaminants ; Acid-derivatives ; Fractionation ; Transformation ; Tetrachloroethene ; Biodegradation ; Fate ; Dechlorination ; Degradation
Sprache englisch
Veröffentlichungsjahr 2013
HGF-Berichtsjahr 2013
ISSN (print) / ISBN 1618-2642
e-ISSN 1618-2650
Zeitschrift Analytical and Bioanalytical Chemistry
Quellenangaben Band: 405, Heft: 9, Seiten: 2825-2831 Artikelnummer: , Supplement: ,
Verlag Springer
Verlagsort Heidelberg
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Groundwater Ecology (IGOE)
POF Topic(s) 20403 - Sustainable Water Management
Forschungsfeld(er) Environmental Sciences
PSP-Element(e) G-504390-001
PubMed ID 23377114
DOI 10.1007/s00216-013-6745-0
WOS ID WOS:000316016400008
Scopus ID 84882254759
Scopus ID 84873344269
Erfassungsdatum 2013-04-04
[➜Korrektur melden]