Environmental Engineering Reference
In-Depth Information
(a)
(b)
Peak C
Peak C
Peak M
Peak A
Peak A
(c)
(d)
(e)
Peak T
UV
Peak T
Ex wavelength (nm)
Fig. 1
The fluorescent components of allochthonous Suwannee River fulvic acid standard (C-like,
a
);
allochthonous Suwannee River humic acid standard (C-like,
b
), autochthonous fulvic acid (C-like) of
microbial assimilation (
c
) and photoinduced assimilation (
d
) of lake algae in aqueous samples (Milli-Q
and river waters), and tryptophan standard in Milli-Q waters (
e
) identified using PARAFAC modeling.
Data source
Mostofa and Sakugawa
(2009)
; Mostofa et al. (
2009b
)
acid, 5-sulfosalicylic acid, and other organic compounds) that is linked with complexa-
tion (Cabaniss
1992
; Smith and Kramer
1998
,
1999
; Cabaniss and Shuman
1988
; Fu
et al.
2007
; Panak et al.
1995
; dasilva et al.
1995
; Ohno et al.
2008
; Silva et al.
1994
;
Lakshman et al.
1993
,
1996
; Seritti et al.
1994
). The increase in fluorescence intensity
upon complexation of Cm
3
+
with 5-sulfosalicylic acid, fulvic acid, and humic acid sug-
gests that the salicylic acid-like functional group may present in the molecular struc-
ture in allochthonous fulvic and humic acids (Panak et al.
1995
). The fluorophores in
