Growth of the soil bacterium Stenotrophomonas maltophilia in the presence of selenite produced a mixture of two types of cells: those that contained numerous electron-dense bodies of elemental selenium and those that did not. Light diffraction and electrical impedance measurements indicated that the
Separation of polymers by flow field-flow fractionation
β Scribed by Steven L. Brimhall; Marcus N. Myers; Karin D. Caldwell; J. Calvin Giddings
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1984
- Tongue
- English
- Weight
- 248 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0887-6258
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## Abstract Since hollowβfiber flow fieldβflow fractionation (HF FlFFF) utilizes a cylindrical channel made of a hollowβfiber membrane, which is inexpensive and simple in channel assembly and thus disposable, interests are increasing as a potential separation device in cells, proteins, and macromol
Flow field-flow fractionation is introduced as a new tool applicable to protein studies. Specific advantages of this method are discussed, including the capability for measuring diffusivities and Stokes radii directly. even for trace components. The theoretical equations of flow FFF are summarized a