Abstract
Inductively coupled plasma mass spectrometry (ICP-MS) has been used in a preliminary study to screen a wide range of metals in solvent extracts and resulting chromatographic fractions from organic rich shales. The samples vary in age, location and depositional environment. Particular interest was directed towards organic compounds containing complexed metals in the chromatographic fractions, especially metalloporphyrins containing metals other than the commonly occurring nickel and vanadium. In addition to the expected high abundance of vanadium and nickel, iron, cobalt and titanium were found to be amongst the most abundant metals in the fractions from certain samples. These results have led to the discovery that up to c. 40% of the extractable iron in one of them is complexed to alkylporphyrins, whose presence was not apparent from initial UV-visible spectroscopic studies. Other samples with fractions containing significant concentrations of iron may also contain such species. Furthermore, ICP-MS multi-element monitoring could become of value in providing a basis for the design of solvent systems for specific separations and for direct coupling of HPLC and ICP-MS.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
