Holistic HPLC Analytical Strategies for Pharmaceutical Labsapps.thermoscientific.com/media/SID/LSMS/PDF/LSMSUsersMtg/Bosto… · Holistic HPLC Analytical Strategies for Pharmaceutical
Post on 14-Mar-2018
222 Views
Preview:
Transcript
Holistic HPLC Analytical Strategies for Pharmaceutical Labs by Rainer Bauder, Solutions Manager Pharmaceutical Markets
2 Proprietary & Confidential
Overview
1. Column Efficiency and Selectivity 2. Your Workflow and Our Automation Tools 3. Boosting Nebulizer Based Detectors
5 Proprietary & Confidential
0 10 0
100
H [µ
m]
Efficiency
Efficiency -Using Improved Diffusion Properties And Plates-
5 µm particles 3 µm particles 2 µm particles
Pressure
2 4 6 8 10 u [mm/s] 0
200
400
600
800
1000
1200
0
Col
umn
pres
sure
[bar
]
2 µm particles 3 µm particles 5 µm particles
0.7 1.4 2.1 2.8 3.5 F [mL/min] 0.7 1.4 2.1 2.8 3.5 F [mL/min] 2 4 6 8
u [mm/s]
*Linear velocity translated to flow rate for a 3 mm i.d. column
6 Proprietary & Confidential
Selectivity -Using Increased Chemical Interaction-
Rs – Resolution N – Theoretical plates α – Selectivity k – Retention factor
Example: To separate two analytes on a 5-µm,150 mm C18 column Assuming N = 10,000 plates/column, k >> 1, and α = 1.04 ⇒ Rs = 1 Objective: increase Rs to 2 Approach 1 – increase N needs 400% increase or N = 40,000 plates Approach 2 – increase α requires only 4% increase or α = 1.08
12 Proprietary & Confidential
Speed-Up Strategy
15 Proprietary & Confidential
Speeding-up Gradient Separation of Parabenes
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0
min
150 x 4.6 mm, 3 µm
F = 2.5 mL/min
tG = 4.3 min
Speed 2.8x
No loss in resolution
100 x 4.6 mm, 2 µm
F = 3.75 mL/min
tG = 1.9 min
Speed 6.2x
No loss in resolution
10 µm particles 5 µm particles 3 µm particles 2 µm particles
0 10 5 Linear Velocity u [mm/s]
0
100
H [µ
m]
uopt, 5 µm uopt, 2 µm
uopt, 3 µm
2062
2 udu
dH pp
⋅++⋅=
90 bar
270 bar
575 bar
L/dp = 50
L/dp = 50
L/dp = 50
250 x 4.6 mm, 5 µm
F = 1.5 mL/min
tG = 12 min
L/dp must be kept constant
16 Proprietary & Confidential
4.6 x 250 mm Column, 5 µm 1.5 mL/min
0 10 15 22 0
100
Minutes
%B
Original First Gradient Step 0–10 min tG = 10 min F = 1.5 mL/min VC = 4.15 mL
Col. Volume (VC) = 4.15 mL
2.1 x 150 mm Column, 3 µm 0.52 mL/min (Increased u)
Col. Volume (VC) = 0.52 mL
New First Gradient Step 0–? min
= 3.6 min
0
100
%B
Minutes 0 3.6 5.4 7.9
15.452.0
52.05.1102 ⋅⋅=Gt1
2
2
112
C
CGG V
VFFtt ⋅⋅=
How do you deal with these complex considerations?
How to Adapt the Gradient Program?
17 Proprietary & Confidential
Gradient table recalculation performed automatically
Dionex RSLC Method Speed-Up Calculator
18 Proprietary & Confidential
Harnessing Efficiency Improvement?
19 Proprietary & Confidential
21 Proprietary & Confidential
22 Proprietary & Confidential
Potency RS Method Before and After
23 Proprietary & Confidential
Harnessing Selectivity Improvement
24 Proprietary & Confidential
Acclaim Trinity Nanopolymer Silica Hybrid (NSH) technology
silica bead
nano-polymer particles
anion-exchange/reversed-phase
cation-exchange
26 Proprietary & Confidential
Column: Acclaim Trinity P1, 3 µm Dimensions: 3.0 x 50 mm Mobile Phase: A - CH3CN, B - D.I. H2O, C – 0.2 M NH4OAc, pH4 Gradient: Time (min) -10 0 2 7 15 A 60 60 60 10 10 B 35 35 35 0 0 C 5 5 5 90 90 Temperature: 30 °C Flow Rate: 0.5 mL/min Inj. Volume: 5 µL Detection: ELS detector (Charged Aersosol as Preferred Alternative) Peaks: (80 to 150 ppm)
1. Procaine 2. Choline 3. Tromethamine 4. Sodium 5. Potassium 6. Meglumine 7. Mesylate 8. Maleate
9. Chloride 10. Bromide 11. Iodide 12. Phosphate 13. Malate 14. Tartrate 15. Citrate 16. Oxalate 0 6 12 9 3 15
Minutes
1
2
3
4
5 6
7 8
9 10
11 12 13 14 15
16
mV
0
1100
Gradient Separation of Pharmaceutical Counterions
27 Proprietary & Confidential
t0
0.5 mL/min
1.5 mL/min Column: Acclaim Trinity P1, 3 µm Dimensions: 3.0 x 50 mm Mobile Phase: 75/25 v/v CH3CN/30 mM (total) NH4OAc, pH5 Temperature: 30 °C Flow Rate: 0.5 and 1.5 mL/min Inj. Volume: 2.5 µL Detection: CAD Sample: Na, Naproxen (0.5 mg/mL in mobile phase) Peaks: 1. Na+
2. Naproxen
2
1
1
2
ONa
Minutes 0 2 4 3 1
mV
500
Hydrophobic Acidic API and Counterion – Na, Naproxen
t0
30 Proprietary & Confidential
3
4
Minutes
t0
0 2 4 3 1
mA
U
0 1
2
800
3
4
1 2
interference
pH 4.1
pH 5.2
Acclaim® Trinity Application: Advil ALLERGY and SINUS (pH (pH Effect)
Column: Acclaim Trinity P1, 3 µm Dimensions: 3.0 x 50 mm Mobile A: CH3CN Phase: B: D.I. H2O C: 0.2 M NH4OAc, pH 5.2 Gradient: Time (min) –4 0 0.1 1 4 A: 25 25 25 80 80 B: 65 65 65 0 0 C: 10 10 10 20 20 Temperature: 30 °C Flow Rate: 1.0 mL/min Inj. Volume: 2 µL Detection: UV, 254 nm
Sample 1. Ground one tablet (~0.49 g) Prep: into fine powder 2. Weigh 20 mg of above powder in a 20-mL sample vial 3. Add 10 mL of MeCN/H2O (v/v, 1/1) solution 4. Sonicate the vial containing sample suspension at 40 °C for 30 min 5. Filter the extract with 0.2-µm membrane filter Peaks: 1. Pseudo-ephedrine
2. Chlorpheniramine 3. Maleate 4. Ibuprofen * Background subtraction applied
34 Proprietary & Confidential
Overview
1. Column Efficiency and Selectivity 2. Your Workflow and Our Automation Tools 3. Boosting Nebulizer Based Detectors
43 Proprietary & Confidential
(Binary) RSLC (2008)
• Best flow-pressure footprint • Brought Dionex up to UHPLC • Full conventional LC capability
43
Bringing UHPLC to its Full Capabilities
x2 Dual RSLC
● Boost system use time ● Boost throughput ● Integrate sample prep ● Comprehensive LC
Quaternary RSLC
● Gradient Flexibility ● Cost-Effectiveness
Unique Choice of Pump Modules
44 Proprietary & Confidential
We Introduced Two Awesome Pump Modules
LPG-3400RS – A True Quaternary UHPLC Pump
• Low-pressure gradient proportioning of
up to four solvents • Integrated 4 channel degasser • Provides full application flexibility • Supports ultrafast automated method
scouting
DGP-3600RS – Unique Dual-Gradient UHPLC Pump
• Two ternary UHPLC pumps in one • Supports x2 Dual LC techniques
• Automated application switching • Parallel RSLC (2 systems in one) • Tandem RSLC • Multidimensional LC (max. resolution in
1st dimension and max. speed in 2nd dimension)
44
45 Proprietary & Confidential
The Powerful Two-stage SpinFlow™ Design
• Concept as introduced with HPG-3x00RS Initial small volume radial mixing Variable sized longitudinal mixing
• Outstanding mixing-per-volume performance • Patent-pending
46 Proprietary & Confidential
The Powerful Two-Stage SpinFlow™ Design
46 SpinFlow™ Volumes: 35uL, 100uL, 200uL, 400uL, 800uL, 1550uL
47 Proprietary & Confidential
Viper™ Finger Tight Fitting System
• Finger tight, correct fit every time!
• Universal (fits to Rheodyne, Valco, Swagelok...)
• No dead volume as soon as tightly connected
• Ease of use, no sleeve for small capillaries
• 1200 bar compatible
Ease of Use and Ergonomic
PEEK Seal
Removable knurl
Adapter (no ferrule!)
Finger Tight Screw 1/32” capillary
48 Proprietary & Confidential
Viper™ Performance at 600bar/8700psi
ZERO Dead Volume
Standard finger tight fitting
VIPER
49 Proprietary & Confidential
Your Workflow and Our Automation Tools
• Eliminate Matrix
• 2 x UHPLC Systems in One
• Gradient Methods and Tandem Operation
• (Automated Method Scouting)
• Automated 2D-Offline Fractionation for Biotherapeutics
• System Startup and Shutdown
50 Proprietary & Confidential
Intelligent (UHP)LC Solution for On-line SPE-LC
• First dimension SPE (e.g., RAM) column separates analytes from matrix • After transfer to an analytical column, analytes are separated and detected • Unique Chromeleon on-line SPE-LC wizard helps develop methods Allows direct injection of complex samples, e.g., biological fluids, surface water Faster, more precise, cheaper and better automated than alternative techniques
56 Proprietary & Confidential
WPS-3000 FC Well-plate Sampler with Fractionation Capabilities
• Dual valve autosampler (bioinert fluidics)
• Optimized for automated workflows e.g.:
• (Off-line) 2D-LC • Protein purification combining different
modes of LC and Protein purification recovery studies.
• Sample fractionation and desalting prior to MS detection
• Sample derivatization, e.g. digestion,
neutralization, in-between LC separations
Key Technology for Advanced 2D Offline Workflows
57 Proprietary & Confidential
0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 -500
0
1,000
2,000
3,000
3,500 mAU
min
1 - 0.414
2 - 3.320
RA3
- F1
(3-3
)
RA4
- F2
(4-4
)
Flow: 1.500 ml/min %B: 0.0 %
100
Automated Antibody Affinity//IEX: Antibody Purification and Isoform Analysis
Purified antibody
first dimension – protein A antibody affinity purification and collection
second dimension WCX ion-exchange analysis
0.0 20.0 40.0 60.0 80.0
0.0
10.0
20.0
30.0
mAU
min
Acidic Variants
Basic Variants
K
K K
58 Proprietary & Confidential
Overview
1. Column Efficiency and Selectivity 2. Your Workflow and Our Automation Tools 3. Boosting Nebulizer Based Detectors
59 Proprietary & Confidential
Boosting Nebulizer Detectors (MSx, CAD, ELSD)
• Stabilize Mobile Phase Viscosity
• Stabilize Nebulizer and Droplet Efficiency
• Stabilize Ionization and Detector Response
• Eliminate Baseline Drifts and Shifts
60 Proprietary & Confidential
Corona CAD – Inside The Engine
HPLC eluent
pneumatic nebulization
drying tube
liquid waste
dried particles Corona needle
mixing chamber
ion trap
collector / electrometer
data Station
61 Proprietary & Confidential
Universal Detector for Non-volatiles!
62 Proprietary & Confidential
1. Second liquid branch with given tubing volume and delayed gradient profile (to compensate for column)
2. Second liquid branch includes identical column
62
Implementation of Inverse Compensation Gradient
Pump 1
Pump 2
Injector Column
Column Thermostat
Detector
Pump 1
Pump 2
Injector Column 1
Column Thermostat
Detector
Column 2
63 Proprietary & Confidential
Improved Quantification with Inverse Gradient
Peaks 1. Citric Acid 2. Theophylline 3. Phenylalanine 4. Propranolol 5. Naproxen 6. Diclofenac 7. Progesterone
- 5.0
10.0
25.0 pA
1
- 1
- 2
- 3 - 4
- 5 - 6 - 7 - 8
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0
- 1
- 2
- 3 - 4
- 5 - 6 - 7 - 8
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 - 5.0
10.0
20.0
35.0 pA
min
2
- 1
- 2
- 3
- 4
- 5 - 6
- 7 - 8
Inverse Gradient
Gradient only
64 Proprietary & Confidential
Broadening Your UHPLC Approach
Smart Method Development Using Column Efficiency And Column Selectivity
Use a Straight Forward and Easy to Eastablish Strategy to Migrate
LC Methods to Faster UHPLC Separations Utilize a Wide Detection Offering to Separate Chromophores and
Non-Chromophores Clever Hardware and Software Allows Us to Speed Up Our
Processes Outside the (UHP)LC (Workflow Integration)
65 Proprietary & Confidential
Good Luck and Have Fun!
Dionex is focused on making UHPLC more productive for
All Chromatographers and All LC Challenges
top related