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Direct Analysis using Paper-Spray Mass Spectrometry: Method Development for the Rapid Screening of Drugs of Abuse for Forensic Toxicology
FIGURE 6b. Quantitative results for
it i t li
li d b i t
l
FIGURE 6a. Full scan MS spectra for
,000 resolving power (FWHM
. Sample contained six drugs
am r p y ne norma ze y n erna
standard from DBS samples. Calibration
curve and %RSD variability (n=3) shown.
the [M+H]
+
ion of amitriptyline at
various concentrations from DBS
samples. Acquired at 70,000 resolving
power.
Mass accuracy 2-3 ppm
Amitriptyline
Y= -0.0519284+0.001756*X R^2=0.9933 W:1/X
9
1
787
40
60
80
100
304.1552
40
60
80
100
318.1710
ne
cocaethylene
cocaine
50
100
0
50
100
278.1911
278.1910
5000 ng/mL
1000 ng/mL
3
4
5
6
7
8
AreaRatio
300.2024
1
790
60
80
100
bundance
0
20
304.1910
304.1458
304.1646
304.1552
60
80
100
bundance
0
20
318.1918
318.1405
318.2283
318.1708
100
0
50
100
0
278.1910
278.1909
500 ng/mL
250 ng/mL
0
1000
2000
3000
4000
5000
ng/mL
0
1
2
300.2024
7
60
80
100
0
20
40
Relative A
304.1973
304.1760
304.1552
60
80
100
0
20
40
Relative A
318.1403
318.1919
318.1708
100
0
50
100
0
50
278.1910
278.2183
278.1909
100 ng/mL
50 ng/mL
Level (ng/mL)
% RSD
300.2024
1
60
80
100
0
20
40
304.1891
304.1377
304.1551
60
80
100
0
20
40
318.1404
318.1919
318.1708
318.1402
100
0
50
100
0
50
278.2180
278.1911
278.2182
278.1909
278 2180
25 ng/mL
10 ng/mL
Conclusion
300.20
300.1870
304.15
304.20
m/z
0
20
40
304.1763
304.1373
318.1
318.2
m/z
0
20
40
318.2284
318.1919
278.15
278.20
m/z
0
50
.
• We have shown an easy to use technique (no sample preparation, no chromatography)
that shows extraordinary potential for the semi-quantitative screening of drugs of abuse in
forensic toxicology.
esolving power of 140,000
tive detection. An enhanced
0 resolving power, data not
or and fragments (4-5 ppm
tion of compounds in
• Any combination of user required experiments,
e.g.
, MS, AIF and Data Dependent
MS/MS, are allowed for the best hit confirmation in a single experiment.
• Accurate mass fragments (from AIF or DD MS/MS experiment) and isotopic pattern
ur shown below.
etamine
119.0859
150 1280
NL: 1.78E7
matching are required to confirm drugs identified solely by accurate mass (Fig. 3).
• We have demonstrated feasibility for rapid blood analysis for intoxication cases where
expected concentrations are high (≥100 ng/mL, Fig. 4). DD MS
2
data (Fig. 5) indicates
1000 ng/mL
.
119.0859
150.1280
NL: 9.06E6
lower levels can be achieved and this is part of ongoing investigations.
• High resolution and accurate mass are crucial techniques for analyzing complex samples
by MS and nicely complement the paper spray technique in the screening of drugs from
d i d bl
d t
500 ng/mL
120
140
149.0237
119.0858
NL: 1.59E6
r e oo spo s.
• Data collected in this screening application allows for retrospective analysis as a full scan
MS event is always acquired.
100 ng/mL
196.1336
NL: 6.90E7
• The paper spray technique coupled with automated data processing using TraceFinder
3.0 software provides a complete solution for drug screening in forensic toxicology.
ne
References
1000 ng/mL
0917
318.1704
196.1336
0917
NL: 3.74E7
1. Manicke, N.; Yang, Q.; Wang, H.; Oradu, S.; Ouyang, Z.; Cooks, R.G. Assessment of
Paper Spray Ionization for Quantitation of Pharmaceuticals in Blood Spots.
IJMS
2011
,
300
, 123-129.
500 ng/mL
318.1705
196.1336
0917
318.1704
NL: 6.60E6
For forensic toxicology use only.
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This information is not intended to encourage use of these products in any manners that might infringe the
intellectual property rights of others
100 ng/mL
0 200 250 300
.
PO64316-EN 1114S