Intermediate reverse osmosis ultrafiltration (RO UF) membranes for concentration and desalting of low molecular weight organic solutes

Desalination ◽  
1989 ◽  
Vol 71 (3) ◽  
pp. 233-245 ◽  
Author(s):  
M. Perry ◽  
C. Linder
Keyword(s):  
Molecular Weight ◽  
Reverse Osmosis ◽  
Low Molecular Weight ◽  
Organic Solutes ◽  
Uf Membranes

scholarly journals Reverse Osmotic Concentration of Aqueous Solution of Low Molecular Weight Organic Solutes.

MEMBRANE ◽  
1991 ◽  
Vol 16 (3) ◽  
pp. 163-168
Author(s):  
Zhou Jianhui ◽  
Haruhiko Ohya ◽  
Yoichi Negishi
Keyword(s):  
Aqueous Solution ◽  
Molecular Weight ◽  
Low Molecular Weight ◽  
Organic Solutes ◽  
Osmotic Concentration

scholarly journals The role of interaction between low molecular weight neutral organic compounds and a polyamide RO membrane in the rejection mechanism

RSC Advances ◽  
2020 ◽  
Vol 10 (26) ◽  
pp. 15642-15649
Author(s):  
Muxue Zhang ◽  
Lauren Breitner ◽  
Kerry J. Howe ◽  
Daisuke Minakata
Keyword(s):  
Molecular Weight ◽  
Reverse Osmosis ◽  
Organic Compounds ◽  
Membrane Technology ◽  
Low Molecular Weight ◽  
Dissolved Species ◽  
Rejection Mechanism ◽  
Ro Membrane ◽  
Neutral Organic Compounds

Reverse osmosis (RO) is a membrane technology that separates dissolved species from water.

scholarly journals Reverse osmotic concentration of aqueous solution of low molecular weight organic solutes. Part one NS-100 and CA membranes.

MEMBRANE ◽  
1989 ◽  
Vol 14 (6) ◽  
pp. 407-414
Author(s):  
Haruhiko OHYA ◽  
Zhou Jianhui ◽  
Tatsuya HARA ◽  
Takeshi HINO ◽  
Yoichi NEGISHI
Keyword(s):  
Aqueous Solution ◽  
Molecular Weight ◽  
Low Molecular Weight ◽  
Organic Solutes ◽  
Osmotic Concentration

A high-performance oil-free backing pump for electron microscopes

1978 ◽  
Vol 36 (1) ◽  
pp. 110-111
Author(s):  
G.K.W. Balkau ◽  
E. Bez ◽  
J.L. Farrant
Keyword(s):  
Molecular Weight ◽  
Electron Microscope ◽  
Hot Spots ◽  
High Performance ◽  
Carbonaceous Material ◽  
Contamination Rate ◽  
Low Molecular Weight ◽  
Principal Source ◽  
Rotary Pumps ◽  
Electron Microscopes

The earliest account of the contamination of electron microscope specimens by the deposition of carbonaceous material during electron irradiation was published in 1947 by Watson who was then working in Canada. It was soon established that this carbonaceous material is formed from organic vapours, and it is now recognized that the principal source is the oil-sealed rotary pumps which provide the backing vacuum. It has been shown that the organic vapours consist of low molecular weight fragments of oil molecules which have been degraded at hot spots produced by friction between the vanes and the surfaces on which they slide. As satisfactory oil-free pumps are unavailable, it is standard electron microscope practice to reduce the partial pressure of organic vapours in the microscope in the vicinity of the specimen by using liquid-nitrogen cooled anti-contamination devices. Traps of this type are sufficient to reduce the contamination rate to about 0.1 Å per min, which is tolerable for many investigations.

Low-molecular-weight heparin in the prevention and treatment of thromboembolic disorders

1998 ◽  
Vol 1 (5) ◽  
pp. 166-174 ◽  
Author(s):  
Evelyn R Hermes De Santis ◽  
Betsy S Laumeister ◽  
Vidhu Bansal ◽  
Vandana Kataria ◽  
Preeti Loomba ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Low Molecular Weight Heparin ◽  
Low Molecular Weight ◽  
Prevention And Treatment
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