Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Retention time, wavelengths of maximum absorption in the visible region (λmax), mass spectral data and tentative identification of carotenoid profiles in four selected A. gangeticus leafy vegetables.
| Peak no | Retention time (min) | λmax (nm) | Molecular ion [M−H]− (m/z) | MS2 (m/z) | Identity of tentative carotenoids |
|---|---|---|---|---|---|
| 1 | 2.52 | 450 | 438.54 | 438.62 | Neoxanthin |
| 2 | 2.63 | 450 | 446.43 | 446.37 | Violaxanthin |
| 3 | 3.84 | 450 | 445.22 | 445.17 | Lutein |
| 4 | 4.28 | 450 | 452.63 | 452.59 | Zeaxanthin |
| 6 | 20.16 | 450 | 449.52 | 449.46 | β-carotene |
