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Chromatography
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Column chromatography: separation method in which different components of a mixture migrate down through a column at different rates of speed based on their various chemical properties
Virtually all protein purification processes rely on at least one column chromatography step, The number and sequence of such steps are usually tailored to the protein. Chromatography can be described both in somewhat basic and highly technical terms. It has been defined simply as a separation method in which the different components of a mixture migrate through a packed column at different rates. More ...
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The basics of chromatography
Magazine article from: Biopharm International
; ...category. In adsorptive chromatography, molecules in the sample mixture adsorb...material. Adsorptive chromatography works by...chromatography. Adsorptive chromatography relies on...column and the sample mixture itself...
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Canadian Inventors Develop Qualitative, Quantitative Chemical Analysis Apparatus
News Wire article from: US Fed News Service, Including US State News
; ...automatically identifying compounds in a sample mixture. According to the U.S. Patent...of a measured condition of the sample mixture, using the representation of a measured condition of the sample mixture to select a set of reference spectra...
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Studies from University of Washington describe new findings in physical chemistry.
Newspaper article from: Nanotechnology Weekly
; ...concentrate extracellular DNA from a sample Mixture rapidly, Unlike genomic DNA in normal...DNA is selectively extracted from a sample mixture containing lambda-DNA and Drosophila...to detect extracellular DNA from a sample mixture.." Yeo and colleagues published...
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Solutions for: pharmaceutical quality control: rapid comminution of coated tablets.(Retsch insight)
Magazine article from: Laboratory Equipment
; ...individual tablets are ground up to provide a homogeneous sample mixture and that this process does not cause any alteration to...mechanical stress and produces an inadequate, inhomogeneous sample mixture. Thus, a mill is required that avoids this clumping...
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Mountain sheep: an environmental epidemiological survey of variation in metal exposure and physiological biomarkers following mine development.(Report)
Magazine article from: American Journal of Environmental Sciences
; ...complexes. Hemoglobin (Hb) was added to the serum (1-20 ratio of hemoglobin [10% solution] to serum sample. The sample mixture was then separated on agarose gels at 100 V for 1 h and the protein complex then was fixed with 7.5% trichloroacetic...
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CASE STUDY: Evaluating the Fatty Acid Distribution of Bratwurst in Retail Products and of Fat in Sows Fed Fertilium(TM)-Treated Diets
Magazine article from: Professional Animal Scientist
; ...from each brand (n = 14) and were prepared for fatty acid profile analysis. Fatty Acid Profile Analysis. A 200-mg sample (mixture of bratwurst within one package) was placed in a 10-mL test tube. Samples were warmed in a 45C bath for 10 to 15 min...
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Demystifying Mass Spectrometry
Magazine article from: The Scientist
; ...phase ionization technique in which samples are dissolved in a solution containing a chromophoric matrix. The matrix-sample mixture is dried on a target plate and subjected to laser irradiation. As the matrix absorbs energy from the laser, it desorbs...
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Minnesota, Wisconsin Inventors Develop Organic Molecules Removal Device
News Wire article from: US Fed News Service, Including US State News
; ...Office, the invention relates to "methods and devices for removing small negatively charged molecules from a biological sample mixture that uses a solid-phase extraction material that includes a hydrophilic solid support at least partially embedded within...
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Novel LC-MALDI-MS analysis method developed.
Newspaper article from: Medical Devices & Surgical Technology Week
; ...based method of proteomic analysis has been developed. "The ability to obtain the accurate mass of a protein in a complex sample mixture aids in determining its correct in vivo form," scientists in the United States explained. "This is important when identifying...
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EPA subpoenas recycler over PCBs
Newspaper article from: The Billings Gazette
; ...original PCB concentration of the oil prior to its dilution with diesel fuel. Curt Ross said the company also tested the sample mixture that was split between Ross and SEMA. The results showed no PCs but did indicate a level of chlorine, which closely resembles...
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