fony
第3楼2011/09/28
Kromasil 的手性柱今年搞过一次活动,买一送一,挺超值的。不过好像已经结束了
www.kromasil.com
Amycoat (AD-H)
Amycoat-RP (AD-RH)
Cellucoat (OD-H)
Cellucoat-RP (OD-RH)
DMB
TBB
fony
第4楼2011/09/28
这是Macherey-Nagel生产的手性色谱柱子,德国品牌
![]() | Base material silica | |
![]() | NUCLEOCEL ALPHA: chiral selector amylose tris-(3,5-dimethylphenylcarbamate) USP L51 Similar phases: Chiralpak® AD, Kromasil® AmyCoat™, Europak 01 | ![]() |
![]() | NUCLEOCEL DELTA: chiral selector cellulose tris-(3,5-dimethylphenylcarbamate) USP L40 Similar phases: Chiralcel® OD, Kromasil® CelluCoat™, Eurocel® 01, Lux™ Cellulose-1 | ![]() |
![]() | NUCLEOSIL® CHIRAL-1 for enantiomer separation based on ligand exchange · USP L32 ![]() chiral selector L-hydroxyproline – Cu2+ complexes ![]() formation of ternary mixed-ligand complexes with Cu(II) ions Differences in the stability of the diastereomeric complexes cause chromatographic separation. ![]() ![]() | ![]() | ||
![]() | NUCLEOSIL® CHIRAL-2 / NUCLEOSIL® CHIRAL-3 for enantiomer separation in organic eluent systems · USP L36 ![]() chiral selector for NUCLEOSIL® CHIRAL-2: N-(3,5-dinitrobenzoyl)-D-phenylglycine, for NUCLEOSIL® CHIRAL-3 the optical antipode of the CHIRAL-2 phase, "brush type" phases ![]() charge-transfer interactions, hydrogen bonds, dipole-dipole interactions and steric effects ![]() ![]() | |||
For control of the optical purity of a substance, the two columns NUCLEOSIL® CHIRAL-2 and NUCLEOSIL® CHIRAL-3 allow to select conditions such that the minor enantiomer, which is present as an impurity, is eluted before the main peak. Thus, overlapping peaks are avoided. This makes an exact quantification of the impurity much easier. | ![]() |