Alkylphenol and alkylphenol-ethoxylates in carp, water, and sediment from the Cuyahoga River, Ohio.
- C. Rice, I. Schmitz-Afonso, M. Camp
- Environmental ScienceEnvironmental Science and Technology
- 1 September 2003
For all media (water, fish, and sediment) the total NPE (NP + NPE) concentrations were higher in the more urbanized downstream section of the river, and the average total estimated NPE concentrations were 1.3-1.8 times higher.
Contaminant Exposure and Reproductive Success of Ospreys (Pandion haliaetus) Nesting in Chesapeake Bay Regions of Concern
- B. Rattner, P. C. Mcgowan, C. Rice
- Environmental ScienceArchives of Environmental Contamination and…
- 1 July 2004
In view of the moderate concentrations of total PCBs in eggs from the reference site, concerns related to new and emerging toxicants, and the absence of ecotoxicological data for terrestrial vertebrates in many Bay tributaries, a more thorough spatial evaluation of contaminant exposure in ospreys throughout the Chesapeake may be warranted.
Tholinomics--chemical analysis of nitrogen-rich polymers.
The polymeric composition of Titan's tholins--laboratory analogues of Titan’s aerosols--is elucidated using high-resolution mass spectrometry, and the smallest species of a subset of families are identified as linear and cyclic amino nitrile compounds of great astrobiological interest.
Chemical characterization of Titan's tholins: solubility, morphology and molecular structure revisited.
- N. Carrasco, I. Schmitz-Afonso, G. Cernogora
- ChemistryJournal of Physical Chemistry A
- 23 September 2009
Titan's atmospheric chemistry is simulated using a capacitively coupled plasma radio frequency discharge in a N(2)-CH(4) stationnary flux to highlight that the previous Titan's tholin solubility studies are inappropriate to fully characterize such a heterogeneous organic matter and a new protocol is developed to evaluate quantitatively tholinssolubility.
Analysis of octyl- and nonylphenol and their ethoxylates in water and sediments by liquid chromatography/tandem mass spectrometry.
Structural information obtained in the mass spectrometer is presented that supports previous observations that nonylphenol and its ethoxylates are composed mainly of isomers with a tertiary alpha-carbon.
Determination of alkylphenol and alkylphenolethoxylates in biota by liquid chromatography with detection by tandem mass spectrometry and fluorescence spectroscopy.
Comparative plant sphingolipidomic reveals specific lipids in seeds and oil.
Insights on profiling of phorbol, deoxyphorbol, ingenol and jatrophane diterpene esters by high performance liquid chromatography coupled to multiple stage mass spectrometry.
Nitrogen incorporation in Titan's tholins inferred by high resolution orbitrap mass spectrometry and gas chromatography–mass spectrometry
Structural study of acetogenins by tandem mass spectrometry under high and low collision energy.
- Julie Allegrand, D. Touboul, O. Laprévote
- ChemistryRapid Communications in Mass Spectrometry
- 30 December 2010
Although each of the techniques showed some limitations in the detection of functional groups, unambiguous structural identification of the acetogenins was obtained and MALDI ToF-ToF has the advantage over ESI-based methods to provide mass spectra rich in informative fragments which allows the confirmation of some functional groups position.