## Abstract An optimized 2‐D liquid chromatography (LC×LC) set‐up, based on the different selectivities of a silver ion (Ag) and a non‐aqueous reversed phase (NARP), employed in the first (D1) and the second dimension (D2), respectively, in combination with evaporative light‐scattering detection (E
Condensation nucleation light scattering detection with microbore liquid chromatography for lipid analysis
✍ Scribed by Xiaohui Yang; John A. Koropchak
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 405 KB
- Volume
- 12
- Category
- Article
- ISSN
- 1040-7685
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✦ Synopsis
Methods of analysis for both neutral and phospholipids based on microbore high-pressure liquid chromatography HPLC coupled with detection by condensation nucleation light scattering detection are described. The limits of detection for phospholipids were below 100 ngrmL, corresponding to less than 0.5 ng or less than 1 pmole, but were even lower for neutral lipids, and down to Ž . 12 ngrmL 0.06 ng, 0.074 pmole . The method was applied to the determination of lipids in egg yolk samples.
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## Abstract Microcolumn chromatography (1.0 mm to 0.3 mm column i.d.) of underivatized amino acids coupled to evaporative light‐scattering (ELS) detection demonstrated good baseline stability using perfluorinated carboxylic acid ion‐pairing agents of varying alkyl chain lengths (C~2~–C~8~) and conc