... Once limited to the separation of colored chemical species, chromatography today is a powerful analytical technique for the separation, identification, and quantification of the components of mixtures of gases and liquids. ASTM International Committee D02 on Petroleum Products, Liquid Fuels...

... Chromatography plays a very important role as an analytical tool in the analyses of a wide variety of petroleum and petrochemical feedstocks and products. This chapter provides a cursory overview on the fundamentals and application of chromatography to the analyses of gases, naphthas...

... properties. These techniques include the specially designed sliding plate viscometer, differential scanning calorimetry (DSC), atomic force microscopy (AFM), liquid chromatography, centrifugation, and infrared (IR) spectroscopy. The specially designed sliding plate rheometer was used to measure...

... -1 respectively. The on-line separation of actinide radionuclides was achieved by selective elution of U, Th, Pu, Np, and Am. ICP-MS actinides radioisotopes chelation chromatography E. Hywel Evans,1Jason B. Tmscott,~Lee Bromley/Phil Jones,1Justine Turner,2 and Ben E. Fairman2 Evaluation...

... obtained using this approach can be misleading and fails to provide the comprehensive characterization possible using through the application of state-of-the-art analytical methodology; including 31 P nuclear magnetic resonance spectroscopy, high performance liquid chromatography and capillary...

... determination. If research has defined the key elements, these SOPs can be written and implemented without further excessive experimentation that leads to regulatory delays. chromatography validation research design cleaning biopharmaceuticals diagnostics Gall K. Sofer I DESIGNING VALIDATION...

... employing the high pressure liquid chromatography in the gel permeation mode referred to as the high pressure gel permeation chromatography (HP-GPC). It was concluded that the artificial weathering of the asphalt cement binder (used in this study) resulted in a significant increase in LMS percentage...

...) and plating (≈1 %) materials have been separated by ion exchange chromatography in one to three steps. The measured Nb fractions in samples from some four pressure vessel (RPV) base materials were 1 to 3 ppm. The purification of tens of milligrams of RPV material provides sufficient amounts of niobium...

... of the analytical data system, can be used in new ways to atuomate some of these processes. As a result, significant improvements can be made in throughput and quality of reports. data systems personal computers mass spectrometry chromatography Norman Low DATA CONSOLIDATION AND REPORTING...

... into four major categories of analytical techniques: thermal analysis, spectroscopy, chromatography and microscopy. The advantages of these analytical techniques are their precision, accuracy, and small sample size requirements. The methods discussed in this paper can detect small changes in molecular...

... molecular predictors organotins bioaccumulation chromatography organometallic compounds fluorescence detection metal-specific imaging persistence Frederick E. Brinckman, Gregory J. Olson,' William R. Blair,' and Edwin J. Parks^ Implications of Molecular Speciatlon and Topology of Environmental...

... pollutants, which have been spiked into selected test cells. Leachate samples are analyzed by combined gas chromatography/mass spectrometry (GC/MS). Quantitation of the pollutants is accomplished using the isotope dilution technique. By adding a known amount of a labeled pollutant to a sample before...

... High-performance liquid chromatography (HPLC) is a powerful analytical tool which has application to flexible packaging materials. The technique can be used for qualitative and quantitative evaluation of material components and processing variations and for physical characterization. Speed...

... Several potential sources of variation in steric exclusion chromatography (SEC) are discussed: flow rate stability of the pump, column temperature, data processing, and the chromatography itself. Many of these variation sources may be minimized by careful attention to analytical techniques. Flow...

.... This paper describes the development and application of a continuous on-line analyzer; a grab sample analysis program, utilizing state-of-the-art ion chromatography, to measure steam impurity concentration at various locations throughout the steam-water cycle; and the combination of these techniques...

... The chromatographic separation and quantitation of highly ionic species was a difficult problem until recently. Ion chromatography (IC) represents a solution to this analytical problem. Nonsuppressed IC offers a new alternative method to practitioners of IC. Since a suppressor column...

... selection, and system standardization and calibration. The data acquisition capabilities, including storage and report generation, will also be addressed. measurement chromatography ions water on-line power plants instrumentation water quality /. L. Simpson,^ M. N. Robles,^ and T. O. Pasself...

... of composites: screening and quality control of the raw materials, determining the degree of cure, and characterizing the cured composite. In addition to wet chemical analysis, infrared spectroscopy, nuclear magnetic resonance, and liquid chromatography are recommended for quality control. For cure cycle...

... is rejected. composite materials printed circuit boards epoxy resins chemical properties physical properties quality control chromatography T. D. Zucconf Control and Testing of Epoxy Resins Used for Printed Circuit Boards REFERENCE: Zucconi, T. D., "Control and Testing of Epoxy Resins Used...

...-Soxhlet apparatus. Extractable 14 C is separated into unaltered 14 C-PAH and polar transformation products by column or thin-layer chromatography; each fraction is quantified by liquid scintillation or automated thin-layer scanning. Residual 14 C is measured by combustion of extracted sediment...