Knowledge Base

eVol® XR Digital Syringe

Every One an Expert

eVol® is a digitally controlled positive displacement dispensing system that can be programmed to reproducibly and accurately perform a wide variety of liquid handling procedures. Everyone becomes an expert. eVol^® will improve your laboratory workflow and reporting confidence in many ways. Fill in the form below to request more information, or a demonstration of eVol^®.

Key Benefits

The programmable digital drive means liquid handling procedures are user-independent, allowing more efficient workflow scheduling and a reduction in the re-analysis of incorrectly processed or false positive samples.
XCHANGE^® analytical syringes can be easily and quickly changed allowing them to be dedicated to individual liquids, and methods, to prevent possible cross-contamination of reagents.

Available Now - New eVol^® XR Digitally Controlled Syringe Enables use of the new 1 mL eVol® syringe, increasing eVol’s dispensing volume range from 200 nL to 1 mL across 5 syringe capacities and expanding eVol applications in your laboratory.

Download the EVOL XR Digital Syringe Brochure below for more information.

Only three XCHANGE^® syringes are required to dispense liquid volumes covering the range from 200 nL to 500 ?L:

Syringe Capacity (μL)	Volume Range (μL)
1000	40-1000
500	20-500
100	4-100
50	2-50
5	0.2-5

eVol Screen and Touch Wheel Control

Precise user-independent dispensing

Unlike air-displacement devices, eVol® is the perfect solution for accurately aspirating and dispensing both aqueous and non-aqueous liquids. eVol^® features a familiar Touch Wheel user interface and a full-color screen. The clever menu allows all the functions to be accessed logically and quickly. The programming functions are intuitive and include help screens and prompts. Follow the link below to view eVol XR Electronic Syringe Performance Data.

World’s first user calibrated analytical syringe

To comply with your stringent laboratory standards (e.g. GLP, GMP, FDA) eVol® can be easily calibrated to ensure accurate dispensing at all times. The gravimetric calibration procedure is simple, intuitive and can be performed at appropriate intervals. Calibration factors can be stored for up to ten XCHANGE® syringes and can be quickly loaded when the syringe is changed.

eVol® improves workflows

PROCESS	Without eVol®	With eVol®	eVol® BENEFIT
Standard Preparation	Standards prepared in a large volume flask. From this standard aliquots are individually dispensed into autosampler vials.	Standards are made up directly in the vial, including the make-up solvent.	Less glassware usage Reduces waste fluid Significant time saving Improved accuracy and reproducibility
Addition of Standards	Small amounts of standard aspirated and dispensed into all samples before being transferred to an autosampler vial.	One aspiration and a fast series of repeated accurate dispenses directly into vials.	Significant time saving Improved accuracy and reproducibility
Delivery of derivatization agents	Laboratory staff required to work in a fume hood with potentially hazardous materials, to prepare combinations ofderivatization agents in open vials.	Process completed with eVol® programmed to aspirate an amount of solvent or agent and then dispense aliquots into sealed vials. Single handed operation.	Improved operator safety, lower spill and splash risk Ergonomic benefits behind fume hood screen Improved accuracy and reproducibility Less glassware use
Serial dilutions	Transfer of a small amount of solution to another container. Solvent added to achieve the required volume. This is repeated multiple times to obtain the required final accurate concentration.	One aspiration of the solution can be dispensed directly into the solvent to achieve the required accurate concentration.	Complete workflow simplification Significant time savings Improved accuracy Less solvent required Less glassware used

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