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DNB-LEU or DNB-PHGLY, are prepared from N-3,5-dinitrobenzoyl protected
derivatives of leucine or phenylgylcine. |
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| PrincetonCHIRAL |
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to PrincetonCHIRAL Prices |
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to Phisical and Chemical Characeristics |
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PrincetonCHIRAL |
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PrincetonCHIRAL HPLC columns
100Å pore size 5 and 3 µm spherical  particles
the chiral phases, DNB-LEU or DNB-PHGLY,
are prepared from N-3,5-dinitrobenzoyl protected derivatives
of leucine or phenylgylcine, (which are then bonded to
silica stationary phase). These phases are available in
both the D- or the L- enantiomers of the amino acids.
The unique feature of amino-acid-derived chiral phases
is that the elution order of enantiomers in the sample
is dependent on the D- or L- chirality of the bonded amino
acid. Therefore, the order of elution can be controlled
by appropriate selection of stationary phase. This can
be of tremendous advantage for those samples which contain
a large excess of one enantiomer, in which case it is
desirable to have the minor component elute first.Many
racemic acids and amines which cannot be resolved in their
native form can be easily converted to amides or anilides
which can be resolved by an amino-acid-derived chiral
phase:
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Aromatic
alcohols
Aromatic amino acids
Aromatic amino alcohols
Aromatic thiols
Aromatic amines
Aromatic sulfoxides
Mandelic acid analogs
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Aryl substituted
phthalides
Aryl substituted lactams
Aryl substituted succinamides
Aryl substituted hydantoins
Aryl acetamides
Hydroxy-aryl phosphonates
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Note |
If the item
that you are seeking is not listed in the catalog, please call
for information.
Princeton Chromatography, Inc. strives to add new products to
meet the needs of
chromatographers. |
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| PrincetonCHIRAL
Columns |
[
4.6mm / 4.0mm / 3.0mm ID - 100Å - 5,
3µm] |
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| PrincetonCHIRAL
Columns |
[
2.0mm column ID - 100Å - 5, 3µm
] |
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All
orders received via ORDER FORM will be confirmed
by fax or email prior to 
shipping. If you have any questions, please contact
us by Email, Telephone or Fax. |
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