A Generic LC-MS Method for the Analysis of
Multiple of Drug of Abuse Classes with the Thermo
Scientific Exactive
TM
System
Kent Johnson
List of drug of abuse candidates for LC-MS analysis
Benzodiazepines
Opiates
Other drugs group 1
Other drugs group 2
7-Aminonitrazepam
7-Aminoclonazepam
7-Aminoflunitrazepam
2-Hydroxy-ethyl-flurazepam
Desalkylflurazepam
Diazepam
Hydroxy-alprazolam
Hydroxy-triazolam
Nordiazepam
Lorazepam
Oxazepam
Temazepam
Morphine
Hydromorphone
Oxymorphone
Codeine
Dihydrocodeine
Hydrocodone
Oxycodone
Meperidine
Normeperidine
Ketamine
Norketamine
Butorphanol
Fentanyl
Norfentanyl
Nalbuphine
Alfentanil
Sulfentanil
Zolpidem
Trazodone
Venlafaxine
Zopiclone
Methylphenidate
Ritalinic Acid
Dextromethorphan
Dextrophan
Propoxyphene
Norpropoxyphene
6-MAM
Methods Employed Prior to LC-MS
•
Benzodiazepines GC-MS
•
Opiates GC-MS
•
Other drugs of abuse group 1 ELISA
Why switch to LC-MS method?
Benefits of replacing GC-MS
• Faster less need for chromatographic separation
• Less sample prep no derivatization
• No thermal instability benzodiazepines analysis
• No volatility limitations
Benefits of replacing immunoassay
•
Lower consumables cost
•
More specific
Goal
•
Develop fast, easy to use, generic LC-MS method to analyze
multiple classes of drugs of abuse in urine
•
Method has to meet industry standards for
• Precision
• Accuracy
• Limit of quantitation
• Robustness
• With simplest sample prep procedure
Opiates
Benzodiazepines
6-MAM
Other drugs of
abuse group1
Other drugs of abuse
group 2
Exactive uHRAM LC-MS system
•
Resolution
•
100,000 at 1 scan per sec
•
10,000 at 10 scans per sec
•
Mass accuracy
•
Sub ppm
•
Scan speed
•
Up to 10 scans per second
•
•
Mass range
•
m/z 50 - 4000
Power of mass resolution – Ethinyl Estradiol
Resolution:
10k
,
30k
,
50k
,
100k
279.12
279.14
m/z
279.16
279.18
279.20
0
10
20
30
40
50
60
70
80
90
100
R
e
la
ti
v
e
A
b
u
n
d
a
n
c
e
Ethinyl-Estradiol, 279.17434
Butyl-Phthalate, 279.15909
Exactive quantitative analysis workflow
Sample Preparation
SPE or urine dilution
Data processing
extract chromatograms with 2 ppm mass accuracy
Custom reports
LC-MS method
Urine sample preparation
SPE
Int. std addition
Enzymatic Hydrolysis
SPE Extraction
Evaporation
Reconstitution
Urine dilution
Int. std addition
20 X dilution with 25-50% MeOH
Inject Samples
Benzodiazepines, opiates and
Other drugs of abuse group 2
Other drugs of abuse
Blood sample preparation
SPE
Int. std addition
SPE Extraction
Evaporation
Reconstitution
Benzodiazepines, opiates
other drugs of abuse group 2
Precipitation/dilution
Int. std addition
ACN addition in ratio 1:1
Centrifugation
30 X dilution
Other drugs of abuse
group 1
LC method
•
150 x 2.1 mm, 5 um PFP column
•
Mobile phase
• A: 20 mm NH4Ac, 0.1% FA in DIW
• B: 0.1% FA in ACN
•
7 min gradient
MS method
•
HESI source
•
Full scan data in compounds specific m/z range
•
Resolution 100K
Opiates and Opioids in Urine
Hydrocodone
Codeine
Morphine
Hydromorphone
Oxycodone
dihydrocodeine
Normeperidine
Oxymorphine
Meperidine
Oxymorphone D3
Oxycodone D6
Dihydrocodeine D6
Meperidine D6
Hydrocodone D6
Hydromorphone D6
Codeine D6
Morphine D6
Hydrocodone Y = 0.0744648+0.000852152*X R^2 = 0.9401 W: 1/X^2 0 2000 4000 6000 8000 10000 12000 ng/mL 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 A re a R a ti o Codeine Y = 0.0702431+0.000851922*X R^2 = 0.9461 W: 1/X^2 0 2000 4000 6000 8000 10000 ng/mL 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 A re a R a tio Meperidine Y = 0.075201+0.000849812*X R^2 = 0.9540 W: 1/X^2 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 A re a Ra ti o Morphine Y = 0.054877+0.000912426*X R^2 = 0.9288 W: 1/X^2 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 A re a R a ti o
Hydrocodone
Codeine
Meperidine
Morphine
Opiates and Opioids in Urine - dynamic range
Oxymorphone Y = 0.0572347+0.000794734*X R^2 = 0.9411 W: 1/X^2 0 2000 4000 6000 8000 10000 ng/mL 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 A re a R a ti o Normeperidine Y = 0.0229096+0.00023572*X R^2 = 0.9434 W: 1/X^2 0 2000 4000 6000 8000 10000 ng/mL 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 A re a R a ti o Oxymorphone Y = 0.0572347+0.000794734*X R^2 = 0.9411 W: 1/X^2 0 2000 4000 6000 8000 10000 ng/mL 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 A re a R a ti o Oxycodone Y = 0.0712176+0.000849364*X R^2 = 0.9510 W: 1/X^2 0 2000 4000 6000 8000 10000 ng/mL 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 A re a R a ti o
Normeperidine
Oxymorphone
Oxycodone
Dihydrocodeine
Opiates and Opioids in Urine- dynamic range
GC-MS correlation
No
Analyte
Exactive LC-MS
(ng/mL)
GC-MS
(ng/mL)
1
Morphine
289
343
2
Oxymorphone
117
219
3
Oxycodone
167
166
3
Oxymorphone
121
174
4
Hydrocodone
651
650
4
Hydromorphone
503
552
4
Dihydrocodeine
57
74
5
Oxycodone
1833
1822
5
Oxymorphone
593
574
6
Opiates
0
0
7
Opiates
0
0
8
Morphine
22,562
37,954***
8
Hydrocodone
6061
7336
Only
after dilution
6AMSTD10 - m/z= 328.15-328.15 SM: 5 RT:2.10 - 4.10NL:3.16E5 F: {0,0} + p ESI Full ms [ 327.00-335.00] 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 Time (min) 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 R e la ti v e I n te n s it y RT: 3.10 3.40 3.75
6-MAM 10 ng/mL
6AMSTD10 - m/z= 334.19-334.19 SM: 5 RT:2.10 - 4.10NL:5.70E5 F: {0,0} + p ESI Full ms [ 327.00-335.00] 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 Time (min) 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 R e la ti v e I n te n s it y RT: 3.10 3.91 3.41 3.77 4.04IS 20 ng/mL
6-MAM linearity and dynamic range
6- MAM 3 - 400 ng/mL
6-ACETYLMORPHINE
Y = -0.0899199+0.0613337*X R^2 = 0.9984 W: 1/X
0
50
100
150
200
250
300
350
400
NG/ML
0
2
4
6
8
10
12
14
16
18
20
22
24
26
A
re
a
R
a
ti
o
STD10 W50000MOR - m/z= 328.15-328.15 SM: 5 RT:
2.11 - 4.11
NL:
4.31E5
F: {0,0} + p ESI Full ms [ 327.00-335.00]
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
R
e
la
ti
v
e
I
n
te
n
s
it
y
RT: 3.11
3.32
3.48
2.86
2.96
3.57
3.69
3.40
2.25
2.81
2.35
3.76
2.54
3.87
3.98
Measured =10.6 ng/mL
6-MAM NLCP compliance test
10 ng/mL of 6-MAM
in the presence of 50,000 ng/mL
Morphine
6-MAM GC-MS Correlation - Samples
No
Exactive LC-MS
(ng/mL)
GC-MS
(ng/mL)
1
16.6
15.4
2
59.9
56.8
3
21.4
20.6
3
18.4
14.6
4
13
10.8
4
7.8
6.6
Blood samples XIC with mass accuracy of 2 ppm
174876bld - m/z= 308.18-308.18 SM: 5 RT:2.18 - 7.18NL:7.41E5 F: FTMS {0,0} + p ESI Full ms [ 223.00-1000.00] 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 Time (min) 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 R e la ti ve I n te n s it y RT: 4.68 5.84 5.50 6.63 174876bld - m/z= 314.21-314.21 SM: 5 RT:2.18 - 7.18NL:1.97E6 F: FTMS {0,0} + p ESI Full ms [ 223.00-1000.00] 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 Time (min) 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 R e la ti ve I n te n s it y RT: 4.68 5.68 5.41 6.22Zolpidem 293 ng/mL
Zolpidem-D6
1763 72 - m /z= 258 .19-25 8.19 S M: 5 RT:1 .88 - 6.88NL:1.2 8E 6 F : F TM S {0,0} + p E S I F ull m s [ 232.0 0-1000 .00] 50 55 60 65 70 75 80 85 90 95 100 v e I n te n s it y RT: 4.38Dextrorphan 111 ng/mL
1763 72 - m/z= 261 .20-26 1.20 S M: 5 RT:1 .88 - 6.88NL:1.9 7E 6 F: FTMS {0,0} + p ES I Full ms [ 232.0 0-1000 .00] 50 55 60 65 70 75 80 85 90 95 100 ti v e I n te n s it y RT: 4.38Dextrorphan-D3
Blood samples XIC with mass accuracy of 2 ppm
174876bld - m/z= 326.21-326.21 SM: 5 RT:3.34 - 5.34NL:2.18E5 F: {0,0} + p E SI Full ms [ 320.00-1000.00] 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.2 Time (min) 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 Re la ti v e I n te n s it y RT: 4.34 4.51 4.64 4.79Norpropoxyphene 168 ng/mL
174876bld - m/z= 331.24-331.24 SM: 5 RT:3.34 - 5.34NL:4.42E5 F: {0,0} + p E SI Full ms [ 320.00-1000.00] 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.2 Time (min) 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 R e la ti v e I n te n s it y RT: 4.34 4.45 4.58 4.70 5.07Norpropoxyphene-D5
1 74 87 6b ld - m /z= 34 0.23 -3 40 .2 3 S M : 5 RT:3 .3 7 - 5 .3 7NL :7 .5 9E 5 F : {0 ,0 } + p E S I F ull m s [ 32 0.00 -1 00 0.00 ] 3.4 3.6 3 .8 4 .0 4 .2 4 .4 4.6 4.8 5 .0 5 .2 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 10 0 R e la tiv e In te n s it y RT: 4 .3 7 4 .95 4 .81 5.18 3 .9 2 4 .2 2Propoxyphene 162 ng/mL
S td 1000 ng_mlbld - m /z= 351.30-351.30 S M: 5 RT:3.36 - 5.36NL:4.35E6 F : {0,0} + p E SI F ull ms [ 320.00-1000.00] 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.2 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 R e la ti v e I n te n s it y RT: 4.36 4.71 4.88 5.01 5.15 5.25 3.86 4.06 3.41 3.60 3.73 4.17Propoxyphene-D5
154147 - m/z= 220.13-220.13 S M: 5 RT:1.81 - 4.81NL:2.30E6 F: FTMS {0,0} + p ESI Full ms [ 218.00-1000.00] 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 Time (min) 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 R e la ti ve I n te n s it y RT: 3.31 3.71