Carbon and chlorine compound-specific isotope analysis (CSIA) is utilized in chlorinated solvent contamination studies of soil and groundwater contaminated sites. However, in field studies, hydrogen ...

Maximum cumulative ratio (MCR) is a person's cumulative exposure to multiple chemicals divided by the maximum chemical-specific exposure where exposure is expressed on a toxicologically equivalent ...

A continuous-flow cavity ring-down spectroscopy (CRDS) system integrating a chromatographic separation technique, a catalytic combustor, and an isotopic 13 C/ 12 C optical analyzer is described for ...

For plant volatiles to mediate interactions in tritrophic systems, they must convey accurate and reliable information to insects. However, it is unknown whether the ratio of compounds in plant ...

This Guidance Document describes the analytical methods that will be used for determining the volatile organic compound (VOC) concentrations and VOC emission potential for the purposes of the Volatile ...

Abstract: Heterogeneous integration of high quality germanium and compound semiconductors onto large-size low-cost substrates holds great promise to improve the performance and functionality of ...