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Thermo Scientific Poster Note
•
PN21027 ISC 0814S
ed for two
le volumes.
overies for the
the Retain
ene sorbent with
al Samples
ied to the
luent
s confirmed by
nd example the
using a PS-
tion exchange
H 2.
Ketamine
T emazepam
Nortriptyline
Diazepam
Amitriptyline
100mL CX 1L CX
ention time;
se Peak
Levels of the majority of compounds remain consistent
across the week, with the biggest fluctuations being
observed in river water, in particular for cocaine and
diazepam. It can also been seen that levels were
approximately ten fold higher in influent for several
compounds.
3. Mephedrone in the Environment
Using the above approach, it was also possible to identify
the illicit drug, mephedrone (4-methylmethcathinone) in
both river and wastewater.
FIGURE 5. Weekly variation of identified compounds
in influent wastewater.
1E+04
1E+05
1E+06
1E+07
1E+08
Wed T hurs
Fri
Sat
Sun
Mon
T ues
Peak Intensity
Amitriptyline
Bezafibrate
Caffeine
Carbamazepine
Cocaine
Diazepam
Nortriptyline
Ketamine
Propranolol
T emazepam
T rimethoprim
FIGURE 6. Chromatograms indicating the presence of
the illicit drug mephedrone within river water and
influent wastewater.
50
100
0
50
100
% Relative Abundance
0
50
100
tR: 6.75
AA: 5011184
AH: 343172
BP: 178.1223
t
R : 6.80
AA: 1743875
AH: 121215
BP: 178.1223
t
R : 8.62
AA: 315901
AH: 58502
BP: 178.1224
t
R : 8.60
AA: 451103
AH: 60615
BP: 178.1224
t
R : 6.77
AA: 247214
AH: 10447
178.1226
100 µg/L Standard
m/z 178.1225
River Water Spike
m/z 178.1225
River Water Blank
O
H N
Mass Extraction Window : 3ppm