Method for Cleaning Back-Produced Water from Polymer Flooding Operations to Determine Polymer Molar Mass Using Size-Exclusion Chromatography
نویسندگان
چکیده
منابع مشابه
Polymer Separation by Size Exclusion Chromatography
Proteins are the essence of life processes. DNA contains the coded information for life, and is analogous to computer software, but it is the proteins that are analogous to the hardware, that actually carry out the job. Proteins have many roles, from catalysts (enzymes), through proteins that bind and interact with other molecules to control their behaviour, to structural and storage proteins w...
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The use of chromatographic stationary phases or solvent modifiers to modulate diffusion properties in NMR experiments is now well established. Their use can be to improve resolution in the diffusion domain or to provide an insight into analyte-modifier interactions and, hence, the chromatography process. Here, we extend previous work using size-exclusion chromatographic stationary phases to the...
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We have found that the concentrated poly(methyl methacrylate) (PMMA) brush showed the very good nanoparticles (NPs) repellency in its good solvent, e.g. tetrahydrofuran (THF). Whereas the oil- and hydro-phobic (fluorinated), hydrophobic and hydrophilic surfaces adsorbed a lot of NPs. The repellency of NPs did not depend on the surface nature of the NPs. Preparing absorption free columns for siz...
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Molecular size distribution of meningococcal polysaccharide vaccine is a readily identifiable parameter that directly correlates with the immunogenicity. In this paper, we report a size exclusion chromatography method to determine the molecular size distribution and distribution coefficient value of meningococcal polysaccharide serogroups A, C, W, and Y in meningococcal polysaccharide (ACWY) va...
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ژورنال
عنوان ژورنال: Journal of the Brazilian Chemical Society
سال: 2020
ISSN: 0103-5053
DOI: 10.21577/0103-5053.20200138