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Thermo Fisher Scientific's previous headquarters in Waltham, Massachusetts Thermo Fisher Scientific office in Canada. Thermo Fisher Scientific Inc. is an American life, science and clinical research company. It is a global supplier of analytical instruments, clinical development solutions, specialty diagnostics, laboratory, pharmaceutical and ...
The latter was acquired by Thermo Fisher Scientific in 2014. Prior to 2008, the Applied Biosystems brand was owned by various entities in a corporate group parented by PerkinElmer. The roots of Applied Biosystems trace back to GeneCo (Genetic Systems Company), a pioneer biotechnology company founded in 1981 in Foster City, California. [1]
The column effluent flows over one of the resistors while the reference flow is over a second resistor in the four-resistor circuit. TCD schematic. A schematic of a classic thermal conductivity detector design utilizing a Wheatstone bridge circuit is shown. The reference flow across resistor 4 of the circuit compensates for drift due to flow or ...
Aldrich's chemicals catalog, the "Aldrich Catalog and Handbook" is often used as a handbook due to the inclusion of structures, physical data, and literature references. The Sigma Logo. Sigma is the Sigma-Aldrich's main biochemical supplier, with offerings including antibiotics , buffers , carbohydrates , enzymes , forensic tools , hematology ...
A full-text aggregation of more than 180 scientific journals publishing current research in Biodiversity Conservation, Biology, Ecology, Environmental Science, Entomology, Ornithology, Plant Science, and Zoology. Free abstract & references, Open Access titles, and Subscription Available from BioOne [27] Bioinformatic Harvester: Biology ...
Column chromatography in chemistry is a chromatography method used to isolate a single chemical compound from a mixture. Chromatography is able to separate substances based on differential absorption of compounds to the adsorbent; compounds move through the column at different rates, allowing them to be separated into fractions.
A fractionating column or fractional column is equipment used in the distillation of liquid mixtures to separate the mixture into its component parts, or fractions, based on their differences in volatility. Fractionating columns are used in small-scale laboratory distillations as well as large-scale industrial distillations.
In 1925, the company purchased Montreal-based Scientific Supplies, Ltd. [3] The same year, the company was renamed Fisher Scientific. In 1940, Fisher Scientific acquired the New York supply company Eimer & Amend, which was founded in 1851 by Bernard G. Amend. [2] Aiken Fisher, Chester's oldest son, became president of the company in 1949.