SHIMADZU Solutions for Science Since 1875 Since 1875Chromatography Doug Catron Field Sales Engineer...
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Transcript of SHIMADZU Solutions for Science Since 1875 Since 1875Chromatography Doug Catron Field Sales Engineer...
![Page 1: SHIMADZU Solutions for Science Since 1875 Since 1875Chromatography Doug Catron Field Sales Engineer Shimadzu Scientific Instruments, Inc. .](https://reader036.fdocuments.net/reader036/viewer/2022062518/56649e4c5503460f94b41ff6/html5/thumbnails/1.jpg)
SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
ChromatographyChromatography
Doug CatronDoug Catron
Field Sales EngineerField Sales Engineer
Shimadzu Scientific Instruments, Inc.Shimadzu Scientific Instruments, Inc.www.ssi.shimadzu.com
www.ssi.shimadzu.com/LCVAwww.ssi.shimadzu.com/LCVA
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
ContentContent
• What is chromatographyWhat is chromatography• What is HPLC and GCWhat is HPLC and GC• How do they workHow do they work• What makes them quit workingWhat makes them quit working
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
From The BeginningFrom The Beginning
Chemistry on an empty stomachChemistry on an empty stomach• A little butterA little butter• Anago – Eel SushiAnago – Eel Sushi• A sip of waterA sip of water• Salad DressingSalad Dressing
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Why A Vinaigrette Separates
Oil DropOil Drop
Chemical XChemical X
Chemical XChemical X
Chemical XChemical X
Chemical XChemical X
Chemical XChemical X
![Page 5: SHIMADZU Solutions for Science Since 1875 Since 1875Chromatography Doug Catron Field Sales Engineer Shimadzu Scientific Instruments, Inc. .](https://reader036.fdocuments.net/reader036/viewer/2022062518/56649e4c5503460f94b41ff6/html5/thumbnails/5.jpg)
SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Why A Vinaigrette Separates
Oil DropOil Drop
Chemical XChemical X
Chemical XChemical X
Chemical XChemical X
Chemical XChemical X
Chemical XChemical X
![Page 6: SHIMADZU Solutions for Science Since 1875 Since 1875Chromatography Doug Catron Field Sales Engineer Shimadzu Scientific Instruments, Inc. .](https://reader036.fdocuments.net/reader036/viewer/2022062518/56649e4c5503460f94b41ff6/html5/thumbnails/6.jpg)
SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Better Than Oil
•Hexane•Ether•Solids?
On to the next “Phase”
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
A Little TLC
A Small Difference•Stationary Phase•Mobile Phase
Thin Layer Chromatography•Strips of Paper•Glass Slides•Glass Tubes
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
A Phase Of A Different Color
Defining Phases•Liquid/Liquid•Liquid/Solid
SolidSolid
LiquidLiquid
GasGas
TemperaturTemperaturee
PressurePressure
Gas/LiquidGas/Solid
Mobile/StationaryMobile/Stationary
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Building A Better Mousetrap
•How to control the “Mobile Phase”•How to inject and make it gas•How to keep it gas while separating•How to detect it
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Playing With Blocks
FlowFlow InjectorInjector
Oven/ColumnOven/Column
DetectorDetector
Basic Gas Chromatograph
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Flow Control
The Mighty Needle ValveGas Regulator
Flow ~ Pressure for a given viscosity and resistance
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Injectors
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Oven/Column
How size mattersIsocraticGradientTide in a tube
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Detectors
Detectors for every need•Thermal Conductivity Detector – TCD•Flame Ionization Detector – FID•Electron Capture Detector – ECD•Mass Spectrum - MS•NPD, PDID, FPD, Halls Detector, Sievers Detector, ……
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
A Little Performance For LC
PumpPump InjectorInjector
ColumnColumn DetectorDetector
Basic HPLC
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Pumping
Constant flowHigh pressureLow pulsationPositive displacementIsocraticGradient
Two pumpsMixing valve
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Pump cont.
Single PistonDual ReciprocatingTandem Piston
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Injector
Reproducible sample volume
PumPumpp
ColumnColumn
SamplSamplee
VentVent
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Injector
Reproducible sample volume
PumPumpp
ColumnColumn
SamplSamplee
VentVent
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Column
High pressureFritsParticle sizeDimensionsTemperature
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Detector
Ultraviolet/visible spectrumRefractive indexFluorescenceElectrochemicalEvaporative light scatterMass spectrumPost column reagent
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Chromatograms
Detector energy verses time
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Chromatograms
Detector energy verses time
1
2
3
4
5
67
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Chromatograms
Detector energy verses time
0 10 20 30
1
2
3
4
5
6
7
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Part 2 - Troubleshooting
“This Worked Yesterday”
Be careful not to confuse with method development
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Troubleshooting
LET GO OF THAT WRENCH!!!!•Confirm you have a problem
– Try it again– Test column
•What Changed– Slow erosion– Snapped– Identify the problem
•Who touched it last?
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Before You Have A Problem
Know your system•Backpressure•Test chromatograms•How is it configured•Instrument log•Manuals•What is that thing!?•Do preventative maintenance
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Time For The Wrench?
Not Quite
Isolate the problem•Know what effect what•The easiest answer is usually it
– But not always•Rarely do two things break at once*•Eliminate
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Can You Swap?
Redundant system• How essential is this system• Commonly troublesome components• Troubleshooting takes time
Make sure you swap back!
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Take It From The Top - HPLC
Solvent•Properly mixed•Correct chemicals
– Purity grades
– Reagent Alcohol ≠ Ethanol•Buffers
– Proper pH
– Proper concentration•Modifiers•Contamination•Particles•Degassing•Microbes
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Take It From The Top - HPLC
Filter FritsMechanical DegasserLow pressure solvent mixing valvePump•Check valves
– Isolating the right one•Pump seals•Plungers•Bubbles•Behind the seal rinse•Purge valve seal•Pressure sensor•Frit?
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Take It From The Top - HPLC
Pump (cont.)•Motor/gears•Photo sensorsMixerInjector•Vial/caps/septa•Needle seal•Syringe/metering pump•Rotors/stators•Needle
– Blunt– Bent
•Rinse port•Mechanicals
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Take It From The Top - HPLC
Column ovenColumn•Prefilter•Precolumn•Void•Fouled frits•Degradation•Particle breakdown•Burst column•Cleaning
– Water in a C18 column
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Take It From The Top - HPLC
Detectors•Each is unique•Lamps•Flow cells•Mirror fogging•RID reference•UV/Vis wavelength accuracy•Photodiodes/PMTsData collection•Standards and curves•EMI•A/D•Windows
![Page 35: SHIMADZU Solutions for Science Since 1875 Since 1875Chromatography Doug Catron Field Sales Engineer Shimadzu Scientific Instruments, Inc. .](https://reader036.fdocuments.net/reader036/viewer/2022062518/56649e4c5503460f94b41ff6/html5/thumbnails/35.jpg)
SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
From The Problem Point OF View
Shifting peaksNo peaks“Phantom” peaksVariable peaks area from the same vialChanging peak shapeNot finding peaksBad standard curvesHigh backpressureLow backpressureVariable backpressure
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Take It From The Top - GC
Gases•Safety•Purity•The “Dregs”•Regulators•Filters•Generators
– Air
– Hydrogen
– NitrogenFlow Control•Flow meters•Split flow
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Take It From The Top - GC
Flow Control (cont.)•Purge flow•Plugging•Leaks…Injectors•Septa•Liners•CleaningSample needles/autosamplers•Needle size•Cleaning•Pyrolysis•Technique
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Take It From The Top - GC
Column•Packed vs. capillary•Bake out•Cut Ends•Broken columns•Degradation•Cleaning•Proper installation
– Injector/detector depth
– Tension
– Touching the oven•Phase and dimensions
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
Take It From The Top - GC
Detectors•Varied like HPLC•Cleaning/Baking•Jets•Fuel Gases
– Purity
– Mixture•IgnitingData aquisition
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SHIMADZUSHIMADZUSolutions for ScienceSolutions for Science Since 1875Since 1875
From The Problem Point OF View
Shifting peaksNo peaks“Phantom” peaksVariable peaks area from the same vialChanging peak shapeNot finding peaksBad standard curves
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