Method and apparatus for the preparation of liquid samples for determination of boron

Patent · Tue Dec 31 23:00:00 EST 1985

OSTI ID:875198

Siemer, Darryl D. ^[1]

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1. Idaho Falls, ID

A method and apparatus for the preparation of a liquid sample for the quantitative determination of boron by flame photometry. The sample is combined in a vessel with sulfuric acid, and an excess of methanol is added thereto. The methanol reacts with any boron present in the sample to form trimethyl borate which is volatilized by the heat of reaction between the excess methanol and sulfuric acid. The volatilized trimethyl borate is withdrawn from the vessel by either a partial vacuum or a positive pressure and is rapidly transferred to a standard flame photometer. The method is free of interference from typical boron concomitants.

• Research Organization: Exxon Nuclear Idaho Co., Idaho Falls, ID (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC07-79ID01675
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): H000030
• Application Number: 06/447846
• OSTI ID: 875198
• Country of Publication: United States
• Language: English

Related Subjects

/436/422/
acid
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borate
boron
combined
concomitants
determination
excess
flame
form
free
heat
interference
liquid
liquid sample
liquid samples
methanol
method
methyl borate
partial
partial vacuum
photometer
photometry
positive
positive pressure
preparation
pressure
quantitative
quantitative determination
rapidly
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sample
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standard
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sulfuric
sulfuric acid
thereto
transferred
trimethyl
typical
vacuum
vessel
volatilized
withdrawn