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Flash Vaporizers for High Throughput Screening (HTS) or Combinatorial Chemistry (CC)

IP.com Disclosure Number: IPCOM000126952D
Publication Date: 2005-Aug-15
Document File: 1 page(s) / 8K

Publishing Venue

The IP.com Prior Art Database

Abstract

This relates to the use of flash vaporizers in systems for the preparation or testing of samples in HTS or CC.

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FLASH VAPORIZERS FOR HIGH THROUGHPUT SCREENING (HTS) OR COMBINATORIAL CHEMISTRY (CC)

This relates to the use of flash vaporizers in systems for the preparation or testing of samples in HTS or CC.

Flash vaporizer systems can deliver a vapor at flow rates from 0.006 to 10 cc (of liquid) per minute from an unheated liquid source.  It is possible to use liquid sources that have very low vapor pressures and to deliver solutions containing several metal precursors without changing the stoichiometry.  Heated lines or temperature gradients are not required and the precision and repeatability are high.  Pulsing and other problems found with conventional systems such as bubblers, syringe and HPLC pumps are avoided.  The reactants are not heated until just before entering the deposition or HTS system, so decomposition, corrosion, polymerization, and other undesirable reactions in the delivery lines are also avoided.  Very small amounts of solid or liquid reactants and / or precursors can be added after dissolving them in a suitable liquid.

A Direct Liquid Injection system (Type DLI-25B from MKS Instruments) is used to add a liquid or dissolved solid reactant to a parallel reactor for HTS of heterogeneous catalysts.

A parallel system consisting of flash vaporizers, micropumps, and other parts is used to vapor deposit catalyst precursors onto an array of porous support materials.

A parallel system consisting of flash vaporizers, micropumps, and other parts is used to vapor deposit s...