DRD / Resources

Liquid Handling Insights

Practical scientific and engineering explanations of precision pipetting, contact-free delivery, automation and OEM integration.

Technical guide / 01

Differential Displacement Pipetting: How It Works

Differential Displacement™ changes the relationship between piston travel and the amount of liquid aspirated. Instead of depending entirely on a very small piston, the mechanism uses the difference between two effective

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Technical guide / 02

Contact-Free Liquid Dispensing vs. Touch-Off Dispensing

Touch-off and contact-free dispensing answer the same basic need—deliver the intended sample—but they manage the liquid remaining at the pipette tip in different ways. Understanding that difference helps laboratories cho

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Technical guide / 03

Challenges of Accurate Sub-Microliter Pipetting

As sample volumes fall below one microliter, effects that are negligible in larger transfers can become dominant. Reliable miniaturization depends on both the metering mechanism and the complete laboratory workflow.

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Technical guide / 04

Liquid Handling for 384-Well and 1536-Well Plates

High-density plates enable reagent-saving assays and greater sample throughput, but their tight geometry raises the cost of imprecise placement. Pipetting architecture, plate alignment and release behavior should be plan

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Technical guide / 05

OEM Liquid Handling Pumps for Immunochemistry Analyzers

Immunochemistry analyzer developers need pumping systems that handle tiny analytical samples and much larger volumes for reagent movement, washing and rinsing. OEM integration succeeds when accuracy, flow, serviceability

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Technical guide / 06

Dual-Piston Technology for Precision Liquid Handling

Two pistons can do more than double the moving parts. When their motion and effective areas are designed together, the system can deliver two very different behaviors: fine differential metering and stronger single-mode

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