Browse Prior Art Database

Immerser

IP.com Disclosure Number: IPCOM000037811D
Original Publication Date: 1989-Jul-01
Included in the Prior Art Database: 2005-Jan-30
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Bechdel, DH: AUTHOR [+3]

Abstract

In chemical laboratories, digesting and stripping samples in acid such as Aqua Regia (a mixture of hydrochloric and nitric acids) can be performed by a robot, but certain commercial robots are not capable of keeping a sample below the surface of the acid during digestion. The immerser described herein can solve this problem.

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Immerser

In chemical laboratories, digesting and stripping samples in acid such as Aqua Regia (a mixture of hydrochloric and nitric acids) can be performed by a robot, but certain commercial robots are not capable of keeping a sample below the surface of the acid during digestion. The immerser described herein can solve this problem.

The top section of an immerser (FIG. 1) fits into a glass vessel in which the digestion is performed. Posts extend from this section, down into the digestion vessel. These posts extend below the surface of the acid in the vessel and keep the sample submerged. Two embodiments are disclosed: a three-post immerser (FIG. 1) and a four-post immerser (FIG. 2).

Because this immerser is made from Teflon (a registered trademark of E.I. duPont de Nemours Co.), it is resistant to high corrosive acids and acid mixtures, such as Aqua Regia, and will not contaminate the sample. The circular opening in the top of the immerser allows acid fumes to escape from the vessel during the digestion procedure.

Disclosed anonymously.

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