330
.,OOT' "' '
j _-1,
10
15
20
25
30
35
Retention time (min)
M. Vincenti . A. Irico
+t "
, "
!
1'b
100 321
50
~
.. 100
918
~ . .
"t:I
]
50 321
1366
. .
~
1~3
·iii O.jolo..t.l.I--....... - -.... - -...
~
100
50
o
100
50
250
551
964
922
890
m/z
1900
Fig. 17.6. Selected ion chromatograms for LC-ESI-MS analysis of natural red tide bloom seawater extract (left); ESI mass spectra obtained as an average of four scans at peak maxima from the corresponding
selected ion chromatograms on the left (right) (reprinted with permission from Hua et al. 1996)