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A high-performance countercurrent chromatography system. Countercurrent chromatography (CCC, also counter-current chromatography) is a form of liquid–liquid chromatography that uses a liquid stationary phase that is held in place by inertia of the molecules composing the stationary phase accelerating toward the center of a centrifuge due to centripetal force [1] and is used to separate ...
Droplet countercurrent chromatography (DCCC or DCC) was introduced in 1970 by Tanimura, Pisano, Ito, and Bowman. [1] DCCC is considered to be a form of liquid-liquid separation, which includes countercurrent distribution and countercurrent chromatography, that employs a liquid stationary phase held in a collection of vertical glass columns connected in series.
Periodic counter-current chromatography (PCC) is a method for running affinity chromatography in a quasi-continuous manner. Today, the process is mainly employed for the purification of antibodies in the biopharmaceutical industry [ 1 ] as well as in research and development.
Countercurrent distribution, therefore, is a method of using a series of vessels (separatory funnels) to separate compounds by a sequence of liquid-liquid extraction operations. Contrary to liquid-liquid extraction, in the CCD instruments the upper phase is decanted from the lower phase once the phases have settled.
Countercurrent Chromatography is a method of separation, that is based on the differential partitioning of analytes between two immiscible liquids using countercurrent or cocurrent flow. [26] Evolving from Craig's Countercurrent Distribution (CCD), the most widely used term and abbreviation is CounterCurrent Chromatography (CCC), [ 27 ] in ...
Lyman C. Craig (born 1906 in Palmyra Township, Warren County, Iowa; died 1974) was a chemical researcher who worked at The Rockefeller Institute for Medical Research from 1933 onward. [1]
Map from the Đại Nam nhất thống chí. The Đại Nam nhất thống chí (chữ Hán: 大南一統志, 1882) is the official geographical record of Vietnam's Nguyễn dynasty written in chữ Hán compiled in the late nineteenth century. [1] It also contains historical records of military campaigns. [2] [3]
The Battle of Ngọc Hồi-Đống Đa or Qing invasion of Đại Việt (Vietnamese: Trận Ngọc Hồi - Đống Đa; Chinese: 清軍入越戰爭), also known as Victory of Kỷ Dậu (Vietnamese: Chiến thắng Kỷ Dậu), was fought between the forces of the Vietnamese Tây Sơn dynasty and the Qing dynasty in Ngọc Hồi [] (a place near Thanh Trì) and Đống Đa in northern Vietnam ...