955
;r wavelengths used
HL
lei plates,
groups (see Fig. 1).
J is located in UV
film thickness and
isible region. It is
>n. With increase of
ths, the shift value
i explained in terms
oil identification is
thickness alteration
us, except gasoline
velengths. The film
tation spectra.
distilled water. The
We do not distinct
its were made just
►ther samples were
i shown in Fig.2.
tral structure and
>il films. As it was
itation wavelength.
in water strongly
soline film has only
at 290and 330 nm
pectrum located at
1 water have three
queous samples of
s. The intensity of
of oil dissolved in
dilutions in water
r light oil cut (for
:vy oils with ^ex >
ledium/heavy) and
Libyan crude oil
Libyan crude oil
Figure 1 : Fluorescence spectra of oil films with various excitation wavelengths.
