نتایج جستجو برای: immunoaffinity cleanup
تعداد نتایج: 3711 فیلتر نتایج به سال:
Polychlorinated biphenyls (PCBs) in waste oil are typically analyzed by GC-ECD or GC/MS after solid phase extraction (SPE) cleanup. However, not all problematic matrix components are completely removed during cleanup and are injected into the analytical system, thereby contaminating the column and the detector. In this application, a practical example of backflushing is presented using the Agil...
The CPC modified method, the Holaday modified method, and the combination of the 2 procedures have been compared. The CPC modified method involves more cleanup steps but has a more sensitive column. The Holaday modified procedure has fewer cleanup steps, but the column is more difficult to interpret. The combination CPC-Holaday, which has proven to be the most satisfactory, combines the speed a...
MSS membranes are a good candidate for CO cleanup in fuel cell fuel processing systems due to their ability to selectively permeate H2 over CO via molecular sieving. Successfully scaled up tubular membranes were stable under dry conditions to 400°C with H2 permeance as high as 2 x 10 -6 mol.m.s.Pa at 200°C and H2/CO selectivity up to 6.4, indicating molecular sieving was the dominant mechanism....
Abstract: Stigma is a negative attribute of real estate acquired by the discovery of contamination and reflected in its value (Elliot-Jones, 1996). Using a theoretical model with external economies and adjustment costs, we show that both temporary stigma and permanent stigma are possible equilibrium outcomes after the discovery and cleanup of a hazardous waste site. The existence and duration o...
This paper examines the effect of removing pollutants, mainly polychlorinated biphenyls (PCBs), on home prices in Great Lakes Areas Concern (AOCs). AOCs are heavily polluted locations identified as priorities for restoration under Water Quality Agreement (GLWQA) between United States and Canada. Since signing GLWQA, have undergone cleanup actions that could encourage local redevelopment raise n...
OBJECTIVES This study was conducted to investigate acute health effects and its related factors among military personnel participating in the cleanup of the 2007 Hebei Spirit oil spill accident in Taean county, Korea. METHODS We collected data on acute symptoms during the cleanup and their predictors using a self-administered questionnaire to 2624 military personnel. Selfreported symptoms inc...
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