Environmental Engineering Reference
In-Depth Information
Table 1
(contniued)
Samples
Fluorescence properties
Peak A-region
Peak T-region
Peak T
UV
-region References
Standard substances/Component
type
Peak C-region
Peak C
Peak M
p
Peak W
Ex/Em (nm)
p
-Hydroxybenzoic acid dissolved in
sea water
-
-
-
-
280/388
-
Nakajima (
2006
)
Methyl salicylate
366/448
302/448
-
-
-
-
Senesi (
1990a
)
p
-Hydroxy benzaldehyde dissolved
in Milli-Q waters
-
325/365
-
-
-
235/353
Nakajima (
2006
)
p
-Hydroxy benzaldehyde dissolved
in sea waters
330/372
-
-
240/389
-
-
Nakajima (
2006
)
p
-Hydroxy acetophenone dissolved
in Milli-Q waters
-
310/347
-
-
-
225/353
Nakajima (
2006
)
p
-Hydroxy acetophenone dissolved
in sea waters
340/382
-
-
240/386
-
-
Nakajima (
2006
)
Protocatechuic acid (ionized)
340-370/455
-
-
-
-
-
Senesi (
1990a
)
3-Hydroxycinnamic acid
-
310/407
-
-
-
-
Senesi (
1990a
)
Caffeic acid
365/450
-
-
-
-
-
Senesi (
1990a
)
Ferulic acid
350/440
-
-
-
-
-
Senesi (
1990a
)
ß-Naphthols (ionized)
350/460
-
-
-
-
-
Senesi (
1990a
)
Xanthone
-
410/456
-
-
-
-
Senesi (
1990a
)
3-Hydroxyxanthone
343, 365/465
-
-
-
-
-
Senesi (
1990a
)
3-Hydroxy quinoline
350/450
-
-
-
-
-
Senesi (
1990a
)
M
p
means luorescence Ex/Em maxima of fulvic acid which is photobleached by photochemical processes or by any other natural processes
a
Indicates the organic components identiied using PARAFAC modeling on sample EEM data and river EEM data is deducted from samples in case of algae
b
Ranges expresses the authentic standard at various concentrations (1-5 mg L
−
1
) and mechanical reproducibility
peak
indicates the occurrence of a peak that do not indentify
EPS
extracellular polymeric substances
