Drummond 300 Series, Fixed Volume Microdispensers Gilson Microman Drummond 500 Series, Digital Microdispensers BRAND Transferpettor 1-5mL Eppendorf BioMaster RAININ Pos-D Wheaton Socorex Acura® positive 841 Drummond 200 Series, Dialamatic Microdispensers BRAND Transferpettor 200-1000µL BRAND Transferpettor 2-10mL BRAND HandyStep 2µL-5mL RAININ AutoRep M Nichiryo Nichipet Stepper Eppendorf Repeater Plus Thermo Scientific Thermo Scientific Biohit Mechanical Stepper Gilson DISTRIMAN Jencons Scientific Repette Nichiryo Model 8100 Labnet Labpette R USA Scientific Repeating Pipet Eppendorf Repeater Xstream BRAND HandyStep® electronic 0.1µL-50mL Biohit eLINE Lite BRAND HandyStep® electronic 0.1µL-50mL Biohit eLINE Lite RAININ AutoRep E Positive displacement pipettes are commonly used for heavy liquids or ones that are too viscous to be displaced accurately by air, as well as dense, volatile, radioactive or corrosive samples. These pipettes are driven by a disposable piston that comes in direct contact with the sample. This means volatile liquids can be aspirated without evaporation. Next, decide if a manual or electronic positive displacement pipette is best for your application. • Single-channel manual positive displacement pipettes are the go-to tool for handling viscous, dense liquids for diverse applications in the lab. Look through the short list below for ones that meet your sample volume requirements. • Repeating manual positive displacement pipettes are used for repetitive serial pipetting. They are commonly used in applications such as biochemistry, immunology and microbiology where samples need to be rapidly dispensed in the same volumes. Look through the short list below for ones that meet your sample volume requirements. • Single-channel electronic positive displacement pipettes are the go-to tool for handling viscous, dense liquids for a variety of applications in the lab. Look through the short list below for ones that meet your sample volume requirements. • Repeating electronic positive displacement pipettes are used for repetitive serial pipetting. They are commonly used in applications such as biochemistry, immunology and microbiology where samples need to be rapidly dispensed in the same volumes. Look through the short list below for ones that meet your sample volume requirements. A Electronic positive displacement pipettes offer many advantages, but the most significant is the reduced force and fewer hand movements required for operation, which reduces the risk of repetitive stress injuries. Accuracy and precision are also often increased as there is less room for operator error. Next, let's look at single-channel or repeater electronic positive displacement pipettes to see which is best for your application. B Manual positive displacement pipettes are often more durable and better withstand the abuse of everyday lab use. When they do require maintenance, it is often more straightforward and easily accomplished by lab staff. Next, let's look at single-channel or repeater manual positive displacement pipettes to see which is best for your application. POSITIVE DISPLACEMENT PIPETTES OCTOBER 2010 COPYRIGHT ® LAB MANAGER MAGAZINE® There are many different features of a pipette to take into consideration before making your purchase, including ergonomics, low force, fitting, ease of use, reliability, accuracy and precision. This guide will narrow down a list of models that might suit your pipetting needs by looking at three main selection criteria, including displacement method, manual or electronic operation and the number of pipetting channels. The models will not be broken down by volume range, as that varies widely from vendor to vendor. Instead, the sample volume range will be listed after the make and model name. First, let's look at whether a positive displacement or an air displacement pipette fits your application best. Air displacement pipettes are commonly used for aqueous samples and general lab work. They are driven by a piston within an air-tight sleeve that generates a vacuum through its vertical travel. This is triggered either from the depression of a plunger at the top of the pipette by your thumb when using a mechanical pipette, or the same process triggered by the touch of a button when using an electronic model. The sample never comes in contact with the piston, as it is separated by a cushion of air, referred to as dead volume. Next, decide if a manual or electronic air displacement pipette best suits your application. A Electronic air displacement pipettes offer many advantages, but the most significant is the reduced force and fewer hand movements required for operation, which reduces the risk of repetitive stress injuries. Accuracy and precision are also often increased as there is less room for operator error. Next, let’s look at single-channel, multi-channel and repeater electronic air displacement pipettes to see which is best for your application. B Manual air displacement pipettes are often more durable and better withstand the abuse of everyday lab use. When they do require maintenance, it is often more straightforward and easily accomplished by lab staff. Next, let's look at single-channel, multi-channel and repeater manual air displacement pipettes to see which is best for your application. Thermo Scientific Finnpipette Novus 100-1000µl Thermo Scientific Finnpipette F1 Thermo Scientific Finnpipette F1 Thermo Scientific Finnpipette Novus 8-channel 100-1200µl Thermo Scientific Finnpipette Novus 1-10mL Thermo Scientific Finnpipette F2 Thermo Scientific Finnpipette F2 Labnet Discovery Thermo Scientific Matrix Equalizer 8-channel 15-1250µl gelcompany QDSP02 Grassy Green 0.5 µl - 2.0 µl adjustable pipettor, mini VistaLab Technologies Ovation 10-100µL Nichiryo Nichipet 7000 gelcompany QDSP1000 Brilliant Blue 200 µl - 1000 µl adjustable pipettor, mini VistaLab Technologies Ovation 2-125µL USA Scientific ErgoOne™ BRAND Transferpette®-8 S 0.5-10µL VistaLab Technologies Ovation 0.5-20µL VistaLab Technologies Ovation 25–1250µL Nichiryo Nichipet EX BRAND Transferpette®-12 S 20-200µL VistaLab Technologies Ovation 5-250µL BRAND Transferpette® channel 0.5-10µL Jencons Scientific Sealpette Single Channel Biohit mLINE multichannel 0.5-10 µl (8 channel) Eppendorf Research pro BRAND Transferpette® channel 100-1000µL BRAND Transferpette® S 100-1000µL Biohit mLINE multichannel 30-300µl 12 channel BRAND Transferpette® 8 electronic 10-200µL Biohit eLINE Single channel 10-300 µl Biohit mLINE single channel 2-20 µl RAININ Pipet-Lite Adjustable Spacer Biohit eLINE multichannel 0.2-10 µl (8-channel) Viaflo Vision Single Channel Drummond Pipet-Aid® XP RAININ Liquidator 96 Biohit eLINE multichannel 50-1200 µl (12-channel) Drummond Orignal Pipet-Aid® Hamilton SoftGrip Viaflo Voyager 8 Channel RAININ EDP3-Plus w/ LTS RAININ Pipet-Lite SL Conical Shaft Gilson Pipetman Neo Multichannel RAININ EDP3 w/LTS RAININ EDP1 w/ LTS Hamilton SoftGrip Wheaton Socorex Acura® manual 855 8 chanel Hamilton SofTouch Gilson Pipetman Ultra Gilson Pipetman Neo Wheaton Socorex Calibra digital 852 8 channel Gilson Pipetman Concept Multichannel Wheaton Socorex Acura® Electro 925 Wheaton Socorex Calibra digital 852 8 channel Wheaton Socorex Acura® Electro 955 12 channel gelcompany QDSP20 Plum Purple 2.0 µl - 20 µl adjustable pipettor, mini VistaLab Technologies Ovation 0.2-2µL USA Scientific ErgoOne™ Labnet Excel Multi gelcompany QDSP200 Overt Orange 20 µl - 200 µl adjustable pipettor, mini VistaLab Technologies Ovation 1-10µL Eppendorf Research plus VistaLab Technologies Ovation 2-20µL gelcompany QDSP10 Painted Pink 2.0 µl - 10 µl adjustable pipettor, mini Thermo Scientific Finnpipette Novus 10-100µl Globe Scientific 3301 Globe Scientiifc 3303 Thermo Scientific Finnpipette Multistepper Hamilton SoftGrip Wheaton Socorex The Stepper™ 411 Biohit Mechanical Stepper Globe Scientiifc 3250 Thermo Scientific Matrix Equalizer 12 channel 2-125µl Labnet Excel Globe Scientific 3311 Labnet Discovery Multi Globe Scientific 3312 Thermo Scientific Matrix Equalizer 16 channel 2-125µl VistaLab Technologies Ovation 0.5-20µL VistaLab Technologies Ovation 20-200µL Jencons Scientific Sealpette Multi-Channel VistaLab Technologies Ovation 100-1000µL gelcompany QDLP20 Plum Purple 2.0 µl - 20 µl adjustable pipettor, standard stem VistaLab Technologies Ovation 5-250µL Eppendorf Research plus BRAND Transferpette®-8 S 20-200µL Eppendorf Reference VistaLab Technologies Ovation 2-125µL Eppendorf Research pro Nichiryo Nichipet EX PLUS DragonMed MicroPette Nichiryo Nichipet PREMIUM VistaLab Technologies Ovation 25–850µL BRAND Transferpette® channel 20-200µL BRAND Transferpette® S 0.5-10µL Biohit mLINE multichannel 5-100 µl (12 channel) BRAND Transferpette® S 20-200µL BRAND Transferpette® 12 electronic 0.5-10µL Biohit eLINE Single channel 0.2-10 µl DragonMed MicroPette RAININ Pipet-Lite w/LTS Biohit mLINE single channel 0.1-3 µl BRAND Transferpette® 12 electronic 10-200µL Biohit eLINE Single channel 50-1000 µl Biohit mLINE single channel 20-200 µl Drummond Pipet-Aid® XL Biohit eLINE multichannel 10-300 µl (8-channel) Drummond Pipet-Aid® HoodMate Drummond Portable Pipet-Aid® Viaflo Voyager 6 Channel RAININ Pipet-Lite w/LTS Viaflo Voyager 12 Channel RAININ EDP3-Plus Traditional RAININ RAININ Classic RAININ EDP3 Adjustable Spacer gelcompany QDLP200 Overt Orange 20 µl - 200 µl adjustable pipettor, standard stem gelcompany QDLP10 Painted Pink 2.0 µl - 10 µl adjustable pipettor, standard stem BRAND Transferpette® 12 channel 15-300µL Proline single channel 5-100 µl Drummond Pipet-Aid® Elite Viaflo Vision 8 Channel Viaflo Vision 16 Channel Viaflo Voyager 8 Channel RAININ EDP3-Plus w/ LTS RAININ EDP3 Adjustable Spacer Gilson Pipetman Concept Wheaton Socorex Acura® Electro 935 Drummond Elite BRAND Transferpette® 8 channel 0.5-10µL BRAND Transferpette® 8 channel 15-300µL gelcompany QDLP1000 Brilliant Blue 100 µl - 1000 µl adjustable pipettor, standard stem Eppendorf Research pro Proline single channel 0.2-10 µl (single-channel) Proline single channel 50-1200 µl Viaflo Vision Single Channel Viaflo Vision 12 Channel Viaflo Voyager 6 Channel Viaflo Voyager 12 Channel RAININ EDP3 w/LTS Hamilton SofTouch Wheaton Socorex Acura® Electro 955 8 channel Hamilton SofTouch Gilson Pipetman P Gilson Pipetman Ultra Multichannel Gilson Pipetman Concept Wheaton Socorex Acura® manual 825 Wheaton Socorex Acura® Electro 955 8 channel Wheaton Socorex Acura® Electro 935 Wheaton Socorex Acura® manual 835 AIR DISPLACEMENT PIPETTES • Single-channel electronic air- displacement pipettes are the Swiss Army knives of liquid handling, capable of taking on any application in the lab. Look through the short list to the right for ones that meet your sample volume requirements. • Single-channel manual air displacement pipettes are the Swiss army knives of liquid handling, capable of taking on any application in the lab. Look through the short list to the right for ones that meet your sample volume requirements. • Multi-channel manual air displacement pipettes are ideal for applications that involve multi- well plates, such as PCR or ELISA. The number of channels on the pipette can range between 4 and 64. Consult the list to the right for several examples. • Repeating manual air displacement pipettes are used for repetitive serial pipetting. They are commonly used in applications such as biochemistry, immunology and microbiology where samples need to be rapidly dispensed in the same volumes. Look through the short list to the right for ones that meet your sample volume requirements. • Multi-channel electronic air displacement pipettes are ideal for applications that involve multi- well plates, such as PCR or ELISA. The number of channels on the pipette can range between 4 and 64. Consult the list to the right for several examples. • Repeating electronic air displacement pipettes are used for repetitive serial pipetting. They are commonly used in applications such as biochemistry, immunology and microbiology where samples need to be rapidly dispensed in the same volumes. Look through the short list to the right for ones that meet your sample volume requirements. INTRODUCTION: START HERE