Skip to main content

Modern Methods of Plant Analysis / Moderne Methoden der Pflanzenanalyse

  • Book
  • © 1962

Overview

Part of the book series: Modern Methods of Plant Analysis Moderne Methoden der Pflanzenanalyse (PFLANZENANAL., volume 5)

This is a preview of subscription content, log in via an institution to check access.

Access this book

eBook USD 84.99
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book USD 109.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Other ways to access

Licence this eBook for your library

Institutional subscriptions

Table of contents (18 chapters)

Keywords

About this book

123 phase and hence have no direct bearing on the retention time of solutes. However in gas-solid chromatography, a considerable quantity of the mobile phase may be adsorbed on the surface of the stationary adsorbent which diminishes the column's effective length and ability to retain solutes. In this respect helium has been found to be preferable to most other gases (GREENE and Roy, 1957) because it is adsorbed to the least extent. 3. Packed columns offer a considerable resistance to flow, which may create a pressure differential between inlet and outlet of sufficient magnitude to cause an unfavorable flow rate through a significant length of the column. A reduced inlet/outlet pressure ratio can be obtained by using light molecular weight gases toward which the column packing shows the greatest permeability. The flow rate of the mobile phase is normally adjusted by altering the column inlet pressure, for which purpose commercial pressure regulators of sufficient accuracy are available. Quantitative measurements of the flow rate can be made by a number of methods, including rotameters, orifice meters, soapfilm flow meters and displacement of water. The former two methods are the most con­ venient but the least accurate; moreover they create a back pressure and are temperature dependent whereas although the moving soap bubble is cumbersome to employ and unusable for continuous readings, it is preferred when the highest accuracy is required.

Bibliographic Information

  • Book Title: Modern Methods of Plant Analysis / Moderne Methoden der Pflanzenanalyse

  • Editors: K. Biemann, N. K. Boardman, B. Breyer, S. P. Burg, W. L. Butler, D. J. David, P. S. Davis, A. E. Dimond, A. C. Hildebrandt, F. A. Hommes, O. Kratky, H. F. Linskens, H. Moor, K. H. Norris, I. J. O’Donnell, J. V. Possingham, H. Prat, D. H. M. Slogteren, E. Stahl, J. A. Veken, J. P. H. Want, E. F. Woods

  • Series Title: Modern Methods of Plant Analysis Moderne Methoden der Pflanzenanalyse

  • DOI: https://doi.org/10.1007/978-3-642-45993-1

  • Publisher: Springer Berlin, Heidelberg

  • eBook Packages: Springer Book Archive

  • Copyright Information: Springer-Verlag oHG. Berlin · Göttingen · Heidelberg 1962

  • Softcover ISBN: 978-3-642-45995-5Published: 03 April 2012

  • eBook ISBN: 978-3-642-45993-1Published: 06 December 2012

  • Edition Number: 1

  • Number of Pages: XXVII, 536

  • Topics: Plant Sciences, Plant Biochemistry

Publish with us