Advances in Sample Preparation at the National Ocean Sciences Accelerator Mass Spectrometry Facility (NOSAMS): Investigation of Carbonate Secondary Standards

The development of robust sample preparation techniques for ocean science research has been a hallmark of NOSAMS since its inception. Improvements to our standard methods include reducing the minimum size of the samples we can analyze, building modular graphite reactors of different sizes that we can swap in and out depending on our sample stream, and modifying our carbonate acidification methods to improve handling of the smaller samples we now receive. A relatively new instrument, the Ramped PyrOx, which allows the separation of organic matter into thermal fractions, has attracted much interest as a research and development tool. We will also discuss our progress on incorporating a Picarro isotope analyzer into our sample preparation options

Inventory of county records, Parker County courthouse, Weatherford, Texas

Inventory of records of Parker County housed in the Parker County courthouse in Weatherford. Begins with an introduction and explanation of the roles of various county government offices. Describes the records of the Commissioners Court, County Clerk, County Court, County Attorney, District Clerk, District Attorney, Justice of the Peace, Sheriff, Tax Assessor-Collector, Treasurer, Auditor, and School Superintendent. Also provides a list of Parker County Records and an index