paper chromatography
paper chromatography A technique for analysing mixtures by
chromatography, in which the stationary phase is absorbent paper. A spot of the mixture to be investigated is placed near one edge of the paper and the sheet is suspended vertically in a solvent, which rises through the paper by capillary action carrying the components with it. The components move at different rates, partly because they absorb to different extents on the cellulose and partly because of partition between the solvent and the moisture in the paper. The paper is removed and dried, and the different components form a line of spots along the paper. Colourless substances are detected by using ultraviolet radiation or by spraying with a substance that reacts to give a coloured spot (e.g. ninhydrin gives a blue coloration with amino acids). The components can be identified by the distance they move in a given time.
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Hercules Exits Resins and Fibers; Forms JV to Acquire Kelco.(Brief Article)
Magazine article from: Chemical Week; 3/1/2000; ; 700+ words
; Hercules will sell its resins and FiberVisions polyolefins fibers businesses...Brothers that will acquire Monsanto's Kelco biogums unit and Hercules' food gums business. Hercules says it will focus its attention on its $1.7-billion paper...
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Hercules Offshore to Delay Annual Meeting to Allow Acquisition Proposal to be Presented.
PR Newswire; 3/29/2007; 700+ words
; ...HOUSTON, March 29 /PRNewswire-FirstCall/ -- Hercules Offshore, Inc. announced today that its 2007...announced proposed acquisition of TODCO by Hercules. Obtaining the approval of Hercules' stockholders for the issuance of Hercules...
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Hercules Offshore Announces Record Date and Meeting Date for Meeting of Stockholders.
PR Newswire; 5/24/2007; 700+ words
; ...May 24 /PRNewswire-FirstCall/ -- Hercules Offshore, Inc. announced today that...Oaks Lane, Houston, Texas 77027. Only Hercules Offshore stockholders of record at the...bin/prnh/20050601/DAW092LOGO) Hercules Offshore, Inc. announced on March 22...
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Hercules Continues Sale Process as ISP Seeks 20%.(International Specialty Products Inc.)(Statistical Data Included)
Magazine article from: Chemical Market Reporter; 8/13/2001; ; 700+ words
; ...market for mergers and acquisitions, Hercules Inc. is continuing the process of selling...which has a 9.92 percent stake in Hercules as well as four members on its board...seeking to boost its stake to 20 percent as Hercules' stock lingers near its lows. "Hercules...
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Hercules Offshore Announces Early Termination of Hart-Scott-Rodino Waiting Period.
PR Newswire; 5/30/2007; 700+ words
; ...May 30 /PRNewswire-FirstCall/ -- Hercules Offshore, Inc. today announced that...20050601/DAW092LOGO ) On March 22, 2007, Hercules Offshore announced that it had entered...and Plan of Merger with TODCO and THE Hercules Offshore Drilling Company LLC, a wholly...
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Hercules Unveils New Strategy; Forms Venture With Lehman.(Brief Article)(Statistical Data Included)
Magazine article from: Chemical Market Reporter; 2/28/2000; ; 700+ words
; ...cash to strengthen its core businesses, Hercules Inc. is forming a food gums joint venture...concentrate on our growth businesses," says Hercules president and CEO Vincent J. Corbo. Hercules expects its growth to come from its core...
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Hercules Offshore Announces Three-Year Contracts for Jackup Rigs Hercules 258 and Hercules 260 in India.
PR Newswire; 12/5/2007; 700+ words
; ...HOUSTON, Dec. 5 /PRNewswire-FirstCall/ -- Hercules Offshore, Inc. announced today that Oil and Natural...ONGC) has awarded three-year contracts for the Hercules 258 and Hercules 260 jackup rigs for drilling operations offshore...
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 "Daily News (Los Angeles, CA)")
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VIDEO : `HERCULES' GETS STRONG VIDEO EXPOSURE.(L.A. LIFE) (video recording review)
Newspaper article from: Daily News (Los Angeles, CA); 6/20/1997; 700+ words
; ...After more than 2,000 years as a hero, Hercules has finally achieved the top honor our...s popular syndicated TV series, ``Hercules: The Legendary Journeys'' could hardly...steamroller. So one week before Disney's ``Hercules'' hits theaters, TV's ``Hercules...
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Hercules, Champion in alliance as CST jumps another nickel.
Magazine article from: Chemical Market Reporter; 4/6/1998; ; 700+ words
; ...lasting supply of CST. One such player is Hercules Incorporated, which has entered into...the value of raw materials and allow Hercules to support its customers with a stable...applications. The alliance will also strengthen Hercules and Champion in their respective markets...
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HERCULES introduces a complete new range of 3D graphics boards based on ATI RADEON technology to meet the needs of all users.
M2 Presswire; 3/6/2003; 700+ words
; M2 PRESSWIRE-6 March 2003-Hercules: HERCULES introduces a complete new range of 3D graphics boards based...2003 M2 COMMUNICATIONS LTD RDATE:03062003 London -- Hercules is delighted to announce the launch of a complete new range...
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Hercules Inc.
Book article from: International Directory of Company Histories
Hercules Inc. Hercules Plaza 1313 N. Market Street Wilmington, Delaware 19894-0001 U...302) 594-5400 Web site: Public Company Incorporated: 1912 as Hercules Powder Company Employees: 8,000 Sales: $2.06 billion (1996...
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Hercules
Book article from: Myths and Legends of the World
Hercules The greatest of all heroes in Greek mythology, Hercules was the strongest man on earth. Besides tremendous...confidence and considered himself equal to the gods. Hercules (called Heracles by the Greeks) was not blessed with...
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Hercules, Frank 1911–1996
Book article from: Contemporary Black Biography
Frank Hercules 1911 – 1996 Writer A fixture...York City neighborhood of Harlem, Frank Hercules was uniquely situated to understand the...widely circulated magazine articles, Hercules scrutinized both Trinidadian and American...
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Brabazon, Hercules Brabazon
Book article from: The Oxford Dictionary of Art
Brabazon, Hercules Brabazon ( b Paris, 27 Nov. 1821...mainly of landscape subjects. He was born Hercules Brabazon Sharpe, but he adopted his...x2019; (Sir Frederick Wedmore, Hercules Brabazon Brabazon , 1906).
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Hercules Cluster
Book article from: A Dictionary of Astronomy
Hercules Cluster A loose, irregular cluster of galaxies some 500 million l.y. away in the constellation Hercules; also known as Abell 2151. The cluster is 1°.7 wide as seen from Earth, has a true diameter of 6 million l.y...
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