multivalent ion造句

Nanofiltration membranes have pores sized from 0.001 祄 to 0.01 祄 and filters multivalent ions, synthetic dyes, sugars and specific salts.
Prang et al . ( 2006 ) assessed the capacity of ACH gels to promote directed axonal regrowth in the injured mammalian CNS . The multivalent ions used to create the alginate-based ACH gels were copper ions, whose diffusion into the sodium alginate layers created hexagonally structured anisotropic capillary gels.
For multivalent ions, it is usual to consider the conductivity divided by the equivalent ion concentration in terms of equivalents per litre, where 1 equivalent is the quantity of ions which have the same amount of electric charge as 1 mol of a monovalent ion : 1 / 2 mol Ca 2 +, 1 / 2 mol SO 4 2, 1 / 3 mol Al 3 +, 1 / 4 mol Fe ( CN ) 6 4, etc . This quotient can be called the " equivalent conductivity ", although IUPAC has recommended that use of this term be discontinued and the term molar conductivity be used for the values of conductivity divided by equivalent concentration.
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