Column chromatography (46 Ergebnisse)

No Binding. Zustand: Very Good. ORIGINAL 1972 Article, disbound from journal; no covers; in very good condition. Journal.

Hardcover. Zustand: As New. No Jacket. Pages are clean and are not marred by notes or folds of any kind. ~ ThriftBooks: Read More, Spend Less.

hardcover. Zustand: Good. Most items will be dispatched the same or the next working day. A copy that has been read but remains in clean condition. All of the pages are intact and the cover is intact and the spine may show signs of wear. The book may have minor markings which are not specifically mentioned.…

Zustand: Good. 1994 ed. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.

Hardcover. Zustand: Very Good. No Jacket. May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less.

Zustand: Good. Your purchase helps support Sri Lankan Children's Charity 'The Rainbow Centre'. Ex-library, so some stamps and wear, but in good overall condition. Our donations to The Rainbow Centre have helped provide an education and a safe haven to hundreds of children who live in appalling conditions.…

Zustand: New. pp. 280.

Zustand: New. Brand New. Soft Cover International Edition. Different ISBN and Cover Image. Priced lower than the standard editions which is usually intended to make them more affordable for students abroad. The core content of the book is generally the same as the standard edition. The country selling restrictions may be printed on the book but is no problem for the self-use. This Item maybe shipped from US or any other country as we have multiple locations worldwide.…

Zustand: New. Brand New. Soft Cover International Edition. Different ISBN and Cover Image. Priced lower than the standard editions which is usually intended to make them more affordable for students abroad. The core content of the book is generally the same as the standard edition. The country selling restrictions may be printed on the book but is no problem for the self-use. This Item maybe shipped from US or any other country as we have multiple locations worldwide.…

Zustand: Good. 1175 pp., hardcover, ex library, else text and binding clean and tight. - If you are reading this, this item is actually (physically) in our stock and ready for shipment once ordered. We are not bookjackers. Buyer is responsible for any additional duties, taxes, or fees required by recipient's country.…

Zustand: Good. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In good all round condition. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,1400grams, ISBN:9780127655550. …

Zustand: Good / Bien. Amsterdam: Elsevier Scientific Publishing Company, 1973.- 1067 p.; 4º (24,2 x 16,5 cm); Buena impresión sobre papel couché; Texto en inglés; Cartulina Ed.- (Journal of Chromathography. Supplementary Volume. Nº 3, 1973). Las cubiertas con las normales señales del tiempo. Por lo demás en perfecto estado. Book in english BIOQUIMICA, MICROBIOLOGIA, RADIOLOGIA, MEDICINA NUCLEAR Y ONCOLOGIA.…

Zustand: New. This is a Brand-new US Edition. This Item may be shipped from US or any other country as we have multiple locations worldwide.

Zustand: Good. 1st Edition. Former library copy. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Includes library markings. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.…

Hardcover. Zustand: Good. 0471933058 Good; Hardcover with Jacket; 1991, John Wiley & Sons Publishing; Former library copy with standard library markings; Jacket is intact under a shelfworn jacket cover; Library stamps to endpapers; Text pages clean & unmarked; Good binding with straight spine; Blue dust jacket with title in white lettering; 292 pages; "Liquid Chromatography Column Theory," by Raymond P. W. Scott.…

Zustand: New. This is a Brand-new US Edition. This Item may be shipped from US or any other country as we have multiple locations worldwide.

Zustand: New. In.

Zustand: Very Good. 281 pp., hardcover, ex library, some wear to cover, else very good. - If you are reading this, this item is actually (physically) in our stock and ready for shipment once ordered. We are not bookjackers. Buyer is responsible for any additional duties, taxes, or fees required by recipient's country.…

Couverture rigide. Zustand: Bon. Zustand des Schutzumschlags: Assez bon. Texte en anglais / text in english ! Sciences. XXV + 753 p. 16,5x23,5 cm. 753 p. Reliure éditeur. Bon état. Intérieur en bon état. Tranche de tête passée. Cachet en page de titre. Jaquette en état correct (frottements, petites déchirures, plis) Fort in-12°.…

Hardcover. Zustand: Fine. Zustand des Schutzumschlags: Fine. First Edition. 368 pages. Index. Black and white illustrations. "Planned and developed as a reference work of lasting usefulness to all those with a commitment to macromolecular science, from an international symposium organised by the Macromolecular Group of the Chemical Society." - from dust jacket. Prior owner's name on top edge of text and title page else clean, bright and unmarked. Dust jacket now preserved in glossy new archival-grade Brodart cover. Excellent copy.…

Zustand: Good. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - The method of choice for analysis of organic pollutants in the environ ment is gas chromatography, using one of the most common detection systems such as flame ionization, electron capture, and mass spectro metric detection. Perhaps the most prevalent difference in practice among the envi ronmental analytical chemists involves the type of column used in gas chromatography. The traditional packed-column gas chromatography is rapidly being replaced with wall-coated open tubular (WCOT) columns. However, in using WCOT columns there are difficulties in reporting analytical data and the means of quantitation. This book is intended to present a survey of the salient features of WCOT column gas chromatography that relate to the selection ofWCOT columns, their technology, separation efficiency, and determination of the principal groups of organic micropollutants, such as hydrocarbons, aromatics, polynuclear aromatic hydrocarbons, organochlorine pollu tants, chlorinated phenols, dioxins, dibenzofurans, ureas, carbamates, and odor-causing substances in complex environmental matrices. Hence, it is the hope of the authors that the content of this book will be of significance to a wide spectrum of disciplines that include environmental chemistry, industrial hygiene and health, toxicology, genetics, and in dustry.…

Zustand: New. In.

Zustand: Used. pp. 220.

Zustand: New. pp. 424.

Zustand: Used. pp. 220.

PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

Zustand: New. In.

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - Master's Thesis from the year 2012 in the subject Engineering - Chemical Engineering, Andhra University (Andhra University College of Engineering (A)), course: M.Tech Bio Technology, language: English, abstract: Herbal drug product has a special place in the world of pharmaceuticals. Terminalia chebula is a deciduous tree, used in traditional medicines. It is reported to contain various bio chemical compounds such as tannins, chebulinic acid, ellagic acid, gallic acid, punicalagin, flavonoids etc. It has been reported as antioxidant, antidiabetic, antibacterial, antiviral, antifungal, anticancerous, antiulcer, antimutagenic, wound healing activities etc.The optimization of physico-chemical parameters like effects of different solvents, soaking time, extraction time with hexane, particle size, different solvent percentages, different volumes of hexane with ethanol and methanol as solvents and pH for the extraction of Total Phenolic Content, Chebulinic acid and Quercetin were studied. The extraction was carried out by employing various organic solvents using Soxhlet extractor method. Ethanol was found to be the best solvent for the extraction of Chebulinic acid from Terminalia chebula species. Soxhlet extractor was carried out using ethanol at different extraction times to verify the mathematical model proposed in this work.The optimization of physico-chemical parameters required for obtaining the highest production of Chebulinic acid using Baker's yeast (Saccharomyces cerevisia.Among the extraction process (Batch, Soxhlet& Fermentation process) the highest Chebulinic acid production was obtained from fermentation process. The partition coefficient for fermentation, soxhlet & batch extraction were found to be 3.83, 2.0 & 0.64.The extraction of Chebulinic acid from Terminalia chebula by Soxhlet extraction and purify the Chebulinic acid by using Column chromatography. Chebulinic acid showed many bioactivities including inhibition of cancer cell growth, inhibiting the contractile responses of cardiovascular muscles, anti-fungal, anti-bacterial activities etc. Finally the Chebulinic acid extraction from Terminalia chebula plays a vital role in medicine, biotechnology and various pharmacological activities.…