Large Volume Dispensing

From LEAP

Revision as of 14:46, 7 October 2009

	Large Volume Dispensing
	Application Type
	SPECIAL
	Application ID
	Description
	Accurate dispensing of solvents at high flow rates

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Overview

There are three options on the PAL for delivery of large volumes of solvent. Choice will depend on the requirements for delivery rate, delivery volume and accuracy. In each case these pumps can dispense liquid either through PAL side-port syringe, or using the LEAP "Dispense Tool" accessory. The advantage of the latter is that it permits larger flow rates and includes a venting channel to avoid over pressurization in the case of filling sealed vessels.

Common Uses

• Dispense liquid prior sample injection and combines the "add liquid" and "inject" steps without user intervention or syringe change.

Typical applications

• Dilutions
• Derivatisations
• Sample spiking
• Standard additions

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Dilutor Accessory

Can feed a solvent through the injection syringe into sample plates or vials
There are multiple options on the PAL for delivery of volumes of solvent. Choice will depend on the requirements for delivery rate, delivery volume and accuracy.

Syringe pump volume range of 0.25 ml to 2.5ml delivery per 2.5 ml syringe cycle. (Optional dilutor syringe 1ml or 5 ml)
Flow Rate Range: 10μl/min - 300μl/min
Wetted parts: All liquids compatible with borosilicate glass, PTFE, Kel-F, FEP
Notes

• Requires the addition of a custom macro or cycle for dispensing/diluting applications
• Can be used with any of the PAL side port syringes or with the DISPENSE Tool
• Is not supported by the on board PAL cycles
• Requires an open AUX Port on the PAL
• Requires PAL firmware 2.3 or higher

Syringe pump volume range of 0.25 ml to 2.5ml delivery per 2.5 ml syringe cycle. (Optional dilutor syringe 1ml or 5 ml)
Flow Rate Range: 10μl/min - 300μl/min
Wetted parts: All liquids compatible with borosilicate glass, PTFE, Kel-F, FEP

Notes

• Requires the addition of a custom macro or cycle for dispensing/diluting applications
• Can be used with any of the PAL side port syringes or with the DISPENSE Tool
• Is not supported by the on board PAL cycles
• Requires an open AUX Port on the PAL
• Requires PAL firmware 2.3 or higher

Dilutor with DISPTool

Dilutor on PAL

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Mini Pump Series Accessory

The Mini Pump liquid handling pump is a syringe-free pump capable of delivering a bidirectional flow to six orders of magnitude. The Mini Pump is a positive displacement pump, which means that it is self-priming and tolerant of any gas which may find its way into the fluid lines. Since there is no separate fill cycle, the pump can be operated continuously, and volumetric capacity is limited only by time.

Notes

• Requires LEAP Shell Software for control.
• Can be used with any of the PAL side port syringes or with the DISPENSE Tool
• Is not supported by the onboard PAL cycles

Mini Pump

Pump on PAL

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Solvent Delivery System (SDS) Accessory

Main Features

• 4 Solvents can be dispensed
• 9 Program Steps allow solvents to be added in any order
• Software Interface SDS Launchpad for loading dispense routines
• Save/Load Methods to PC drive
• Easy Verification of Downloaded Method via the “Dashboard” feature in SDS Launchpad
• Contact closure triggers device to run stored dispense routine
• Significantly extends the PAL dispenseing volume range.
• Can be used with any PAL side port syringe or LEAP DISPENSE Tool
• Compatible with all PAL Drivers

Solvent Delivery Module

SDS on PAL

Performance Specifications

• Maximum flowrate 6mL/min in increments of 0.1mL/min
• Flowrate accuracy ± 10%
• Maximum dispensed volume 999mL
• Volumetric accuracy ± 5%
• Maximum pressure 50PSIG
• Typical wash time for 2 solvents (1mL each) @ 6mL/min is 45 seconds

Requirements/Limitations

• Lower dispense speeds needed for more viscous solvents, e.g., i-Propanol @ 3-4mL/min
• Use of Polypropylene compatible solvents

Screenshots

Launch Pad Main Screen

Launch Pad Actions Screen

Launch Pad Load Method Screen

Launch Pad Log Screen

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Side Port Syringe Accessory

Main Features

• Can be used to dispense liquid prior sample injection
• Combines the "add liquid" and "inject" steps without user intervention or syringe change
• Variety of sizes available: 20µl or 80µl for LC applications and 20µl or 80µl for GC applications

Side Port Syringe in action

Side Port on PAL

Side Port on PAL

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DISPTool Accessory

Main Features

• Can be used to dispense bulk liquids without using the injection syringe
• The tool is magnetically picked up by the PAL and moved to the vial or plate only when needed
• Able to pierce a septa with an adjustable needle penetration
• 19ga needle with built in vent
• May allow single rail to have functionality of dual rail system
• Can be used with the Dilutor, Mini Pump, or LEAP SDS

Requirements/Limitations

• Requires some additional rail space for DISPTool parking location
• Requires custom firmware

Video

Dispense Tool movement Uses Windows Media Player to view

Dispense tool in action on youtube

Various PAL's in action on YouTube

PRINT Function for Page

PDF of this page formatted for printing

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LEAP strives to find total solutions for analytical lab automation by automating analytical processes for small and large molecules in extracted liquids, solids, and recently in human, animal and plant tissues. We provide the precise robotics and efficient sample prep required by modern measurement techniques such as MALDITOF mass spectroscopy. Our newest specialty customization of CTC Analytics’ PAL features small workstations that can perform complex liquid handling tasks including HPLC-Purification, SPE, filtration, weighing, heating and stirring. They can be configured as stand alone units or integrated for “just in time” sample prep for LC-MS or GC-MS analysis.
LEAP provides automated workstation instrumentation solutions based on the LEAP CTC PAL X, Y, Z syringe only autosampler robot from LEAP Technologies. This extremely flexible, precise, and adaptable liquid handling robotic platform is available in a variety of lengths and options depending on the requirements of your sample preparation and injections for your UHPLC, LC or GC chromatography.LEAP offers full support and service for the PAL platform in addition to being able to write custom macros, cycles, and scheduling to your applications. Please contact LEAP Technologies on how we can help you get maximized throughput with flexible pipetting automation solutions.

Contact LEAP

Contact LEAP For additional information about LEAP and the PAL Platform, please contact LEAP Technologies.