A laboratory electrodialyser and desalter

Wood, Terry

doi:10.1042/bj0620611

Cited by 28 publications

(2 citation statements)

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“…(3) (Granquist and Hollingsworth 1963). After undispersed matter had been removed by centrifuging the solution in a preparative centrifuge for 30 min at approximately 1000 g, the supernatant was dialysed using a Wood's (1956) electrodialyser (as marketed by Shandon Scientific Co. Ltd., London N.W.lO) in order to reduce the conductivity of the solutions. This process was performed very slowly as rapid dialysis tended to precipitate the mineral.…”

Section: Methodsmentioning

confidence: 99%

Light-scattering studies on suspensions of orientated attapulgite

Plummer¹,

Jennings²

1968

J. Phys. D: Appl. Phys.

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A study is reported of the light scattered by aqueous suspensions of the clay mineral attapulgite when the dispersions were subjected to alternating electric fields. Prior to the application of these fields, conventional measurements indicated that the dispersed particles were of weight average molecular weight 5·9×109 and of 1·1 μm in length. Electron micrographs confirmed the approximate cylindrical form of the particles. The theory for the change in the intensity and shape of the angular scattering diagram when alternating electric fields are applied to the suspensions and the requirements of a suitable apparatus to detect these changes are briefly outlined. The observed intensity changes for fields of magnitude up to 170 v cm−1 and frequencies below 150 Hz indicated that the attapulgite particles were characterized by an effective permanent dipole moment of magnitude 4·2×10−6 e.s.u. across the particles and an electrical anisotropy of 2·4×10−13 e.s.u. along the rods. The magnitude of the latter indicates that a surface rather than a bulk conductivity is involved and that attapulgite is probably synonymous with palygorskite. The frequency dependence of the intensity changes enabled a value of the rotary diffusion constant of 60 s−1 to be determined. The study is closed with a brief comparison between the electric field light scattering as used in these experiments and the similar but better-known Kerr electro-optical effect.

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Section: Methodsmentioning

confidence: 99%

Light-scattering studies on suspensions of orientated attapulgite

Plummer¹,

Jennings²

1968

J. Phys. D: Appl. Phys.

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“…In experiments involving serine recovery, suspensions were boiled and the solutions desalted in a modification of the apparatus of Wood (1956). After evaporation to near dryness, the serine was recrystallized from 90 per cent alcohol and filtered while boiling.…”

Section: Methodsmentioning

confidence: 99%

METHANE FERMENTATION OF FORMATE BY METHANOBACILLUS OMELIANSKII

Pine

1958

J Bacteriol

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Some applications of paper chromatography to the examination of meat extract

Wood¹

1956

J Sci Food Agric

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Meat extract has been investigated by paper chromatography. Methods of removing inorganic salts and protein are discussed. The use of a wide range of colour reagents has made it possible to show up different classes of compounds. The method is rapid and simple and can be applied to any complex mixture of a similar nature. A list of the substances detected is given and comparison made with previous analyses.

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A laboratory electrodialyser and desalter

Cited by 28 publications

References 1 publication

Light-scattering studies on suspensions of orientated attapulgite

Light-scattering studies on suspensions of orientated attapulgite

METHANE FERMENTATION OF FORMATE BY METHANOBACILLUS OMELIANSKII

Some applications of paper chromatography to the examination of meat extract

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