hplc.ppt
TRANSCRIPT
HPLC 2
Tipe Kromatografi Cair
Kromatografi Partisi
Kromatografi Adsorpsi (LSC)
Kromatografi Pertukaran Ion (IEC)
Kromatografi Eksklusi Ukuran / Kromatografi Gel
HPLC 3
Sejarah HPLC• Uses Glass Column filled with
Calcium Carbonate• Diameter 1 – 5 cm• Length 50 – 500 mm• Particle size 150 – 200 m• Flow rate 1/10 – 1 ml/min• Separation time: hours
HPLC
SamplePE
A
B
HPLC 6
Pelebaran pita ekstra kolom
- Terjadi saat solute melewati sistem injeksi, detektor dan pipa/tubing konektor
- Pelebaran terjadi karena perbedaan laju alir antara fase gerak yang berada di pusat dan di tepi
Hex =r2µ24DM
Hex = efek ekstra kolom
r = jari-jari tubing
µ = laju alir linear (cm/s)
DM = koefisien difusi solute dlm fase gerak
HPLC 8
Instrument HPLC
1. Degasser2. LC Pumps3. LC Injector4. LC Column5. LC Detectors6. LC Data Processor
Basic LC Hardware
Extended LC Hardware
1. Column Oven
Degasser
HPLC 9
• Isocratic Pumps
Modern LC Pump
Isocratic HPLC Systems
• Gradient Pumps
Gradient HPLC Systems
Low Pressure Gradient (LPG)Quarternay LPG
High Pressure Gradient (HPG)
HPLC 10
Quarternary LPG Systems
• 4 Mobile Phase Bottle• On-line Vacuum Degasser
4 channel • Proportioning Valve (LPG
Valve Kit)• Pumps• Dynamix Mixer
HPLC 11
HPG Systems
• 2, 3 or 4 Mobile Phase Bottle
• Optional On-line Vacuum Degasser 2, 3, 4 channel
• 2, 3 or 4 Pumps• Dynamix Mixer
HPLC 12
Degassing Technique
1. Ultrasonic Degassing
2. Helium Sparging
3. On-line Vaccum Degasser
Non Continuous ProcessLow Degassing Efficiency Applicable to Isocratic Applications
Semi Continuous ProcessHigher Degassing Efficiency High Operating Cost Related to Helium GasesSpace Requirements and Handling
Continuous ProcessBest Degassing Efficiency Low Operating CostSmall Space Requirements Easy Handling
HPLC 13
• Uses Reciprocating Piston
Modern LC Pump
• Dual Piston Design• Pump Head SS stable up to 6000 psi (400 bar)• Optional Pump Head Titanium , Inert and stable
to High Pressure • Flow Rate Ranges : 0.1 – 10.00 ml/min• High Flow Accuracy, Generally 2 % or lower • High Flow Precisions , Generally 0.2 % or lower• Low Pressure Ripple, Generally 2.5 % or lower• Microprocessor Control / PC Computer Control• Built-in Safety Features • Maintenance Data / GLP Data
HPLC 14
Injector Manual
Sample Injected Manually Using SyringeFix Injected Volume, depends on Sample loops Built-in reed contact (trigger)
HPLC 15
Auto Injector
• Samples were put into vials• Vials were loaded into Racks• Auto Injector was controlled By PC Software• Variable / Programmable Injected• Volume (1 L – 500 L)• Built-in reed contact (trigger)
Additional Features
• Automatic Multiple Injections / Sample• Automatic Dilutions• Automatic Derivatizations / Reactions
HPLC 16
Auto sampler
• High End Autosampler for Analysis• 96 Samples Capacity + 3 Reagents Bottle• Programmable Injections Volume• Multiplicate Injections / Sample• Missing Vials Detections• Easy Operations• Programmable Mixing, Washing, Dilutions,
Derivatizations• Extreemly Low Carry Over < 0.01 %• Reproducibility : < 0.3 %
HPLC 18
HPLC Column
Generally Made of SS Dimensions (75 – 300) mm L x (2 – 8) mm DiaParticle Size : 1.5 m – 10 m
Stationary Phase
C18 (Octadecyl) / ODSC8 (Octyl), C4 (Butyl)CN
RP NP
Anion / Cation Exchange GPC ColumnSpecial
HPLC 19
Detector
LC Detectors Ideal Requirements
• Adequate Sensitivity• Good Stability , Repeatability and Reproducibility• Linear Response Over The Wide Ranges• Short Response Time• Minimum Internal Volume For Minimum Band Broadening• Ease of Use
HPLC 20
Available LC Detectors
• UV-Vis Detector / Photo Diode Array Detector (PDA /DAD)• Fluoresence Detectors• Refractive Index (RI) Detector• Conductivity Detector• Mass Spectrometer Detector (LC-MS)• Electrochemical / Pulsed Amperometric • Evaporative Light Scattering Detector• Light Scattering Detector• Chiral Detector
HPLC 21
LC Detectors General Summary
Detector TypeDetector Type ApplicationApplication Detection LimitDetection Limit
• • UV/VIS Detector:UV/VIS Detector: UV absorbing substances approx. 0.3 ng/ml
• • RI Detector:RI Detector: universal approx. 0.7 µg/ml (Refractive Index Detector)
• • ELS - Detectors:ELS - Detectors: universal approx. 1 ng/ml(Evaporative Light-Scattering Detector)
• • Fluorescent detector:Fluorescent detector: fluorescent substances approx. 0.8 pg/ml
• • Conductivity detector:Conductivity detector: ion selective up to 0.2 % difference
• • Electrochemical Electrochemical reducible/oxidable approx. 1 pg/ml
detector:detector: substances
HPLC 24
Data Processor
• Recorder
• Integrator / Data Processor
To Record Detector SignalNo Possibilities to Save DataNo Possibilities for Automatic CalculationsOperator Dependents ResultsNo Format ReportAll data has to be printed (Recording Paper)
To Record Detector SignalSaved Data Limited by RAMPossible for Automatic Calculations after RunAll data has to be printed (Thermal Paper)Very Limited Format Report