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A monolithic HPLC column, or monolithic column, is a column used in high-performance liquid chromatography (HPLC). The internal structure of the monolithic column is created in such a way that many channels form inside the column. The material inside the column which separates the channels can be porous and functionalized.
For example, in anion-exchange columns, the ion exchangers repeal protons so the pH of the buffer near the column differs is higher than the rest of the solvent. [52] As a result, an experimenter has to be careful that the protein(s) of interest is stable and properly charged in the "actual" pH.
Schematics of a typical falling-film column. In the most common case, the column contains one liquid stream and one gas stream. The liquid forms a thin film that covers the inner surface of the vessel; [1] the gas stream is normally injected from the bottom of the column, so the two fluids are subjected to a counter-current exchange of matter and heat, that happens through the gas-liquid ...
Homeless Children in 2010: 31,386 11 For the complete Report Card (including sources), please visit: www.HomelessChildrenAmerica.org STATE RANKS (1-50, 1 = best)
Degassing, also known as degasification, is the removal of dissolved gases from liquids, especially water or aqueous solutions.There are numerous methods for removing gases from liquids.
Certificate of origin means a specific form identifying the goods, in which the authority or body empowered to issue it certifies expressly that the goods to which the certificate relates originate in a specific country. This certificate may also include a declaration by the manufacturer, producer, supplier, exporter or other competent person;
In public key infrastructure (PKI) systems, a certificate signing request (CSR or certification request) is a message sent from an applicant to a certificate authority of the public key infrastructure (PKI) in order to apply for a digital identity certificate. The CSR usually contains the public key for which the certificate should be issued ...
Lauren Bacall was born Betty Joan Perske on September 16, 1924, in the Bronx, New York City, [a] the only child of Natalie (née Weinstein-Bacal; 1901–1969), a secretary who later legally changed her surname to Bacal, and William Perske (1889–1982), who worked in sales.