摘要:
Methods and an apparatus are disclosed for depositing tantalum metal films in next-generation solvent fluids on substrates and/or deposition surfaces useful, e.g., as metal seed layers. Deposition involves low valence oxidation state metal precursors soluble in liquid and/or compressible solvent fluids at liquid, near-critical, or supercritical conditions for the mixed precursor solutions. Metal film deposition is effected via thermal and/or photolytic activation of the metal precursors. The invention finds application in fabrication and processing of semiconductor, metal, polymer, ceramic, and like substrates or composites.
摘要:
An enhanced swipe sampler and method of making are described. The swipe sampler is made of a fabric containing selected glass, metal oxide, and/or oxide-coated glass or metal fibers. Fibers are modified with silane ligands that are directly attached to the surface of the fibers to functionalize the sampling surface of the fabric. The swipe sampler collects various target analytes including explosives and other threat agents on the surface of the sampler.
摘要:
Sorbent materials include a support, a base material comprising a first compound covalently bound to the support, and an active material reversibly bound to the base material, wherein the active material comprises a second compound with at least one functional group selected for binding a target species. The active material with the bound target species can be removed by washing the sorbent material with a solvent in which the second compound is soluble. The sorbent material can be regenerated by reversibly binding one or more second compounds having a selected functional group to the washed base material.
摘要:
A method and device for enhanced capture of target analytes is disclosed. This invention relates to collection of chemicals for separations and analysis. More specifically, this invention relates to a solid phase microextraction (SPME) device having better capability for chemical collection and analysis. This includes better physical stability, capacity for chemical collection, flexible surface chemistry and high affinity for target analyte.
摘要:
An enhanced swipe sampler and method of making are described. The swipe sampler is made of a fabric containing selected glass, metal oxide, and/or oxide-coated glass or metal fibers. Fibers are modified with silane ligands that are directly attached to the surface of the fibers to functionalize the sampling surface of the fabric. The swipe sampler collects various target analytes including explosives and other threat agents on the surface of the sampler.
摘要:
A method and device for enhanced capture of target analytes is disclosed. This invention relates to collection of chemicals for separations and analysis. More specifically, this invention relates to a solid phase microextraction (SPME) device having better capability for chemical collection and analysis. This includes better physical stability, capacity for chemical collection, flexible surface chemistry and high affinity for target analyte.