Two chiral crown ethers, 2,3 : 4,5-bis [ 1,2-(3-phenylnaphtho)-1,6,9,12,15,18-hexaoxacycloeicosa-2,4-diene and 1,2 : 5,6-di-O-isopropylidene-3,4-[ (tert-butylbenzenediyl)bis(oxyethoxy)ethyl-‰-mannitol, were evaluated as organic-soluble chiral NMR resolving agents. The crown ethers are useful resolvi
✦ LIBER ✦
Exploring Crown Ethers as Shift Reagents for Ion Mobility Spectrometry
✍ Scribed by Hilderbrand, Amy E.; Myung, Sunnie; Clemmer, David E.
- Book ID
- 126883048
- Publisher
- American Chemical Society
- Year
- 2006
- Tongue
- English
- Weight
- 369 KB
- Volume
- 78
- Category
- Article
- ISSN
- 0003-2700
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A new solid phase microextraction SPME method for the analysis of metal ions in aqueous samples has been developed. Fibers doped with crown ether were used to extract mercury ions from aqueous solution through the formation of a stable complex. The complex is then desorbed from the fiber using high-