Liquid chromatographic determination of water

Fortier, Nancy E; Fritz, James S

Title: Liquid chromatographic determination of water

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Abstract

A sensitive method for the determination of water in the presence of common interferences is presented. The detection system is based on the effect of water on the equilibrium which results from the reaction aryl aldehydes, such as cinnamaldehyde and methanol in the eluent to form cinnamaldehyde dimethylacetal, plus water. This equilibrium is shifted in a catalytic atmosphere of a hydrogen ion form past column reactor. The extent of the shift and the resulting change in absorbance are proportional to the amount of water present.

Inventors:

Fortier, Nancy E ^[1]; Fritz, James S ^[2]

Fairfield, OH
Ames, IA

Issue Date:: 1990-11-13

Research Org.:: Ames Laboratory (AMES), Ames, IA; Iowa State Univ., Ames, IA (United States)

OSTI Identifier:: 867604

Patent Number(s):: 4970170

Application Number:: 07/220,743

Assignee:: Iowa State University Research Foundation, Inc. (Ames, IA)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

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G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N2030/8809 - {analysis specially adapted for the sample}
G01N30/96 - using ion-exchange
G01N31/00 - Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T436/212 - Aromatic

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DOE Contract Number:: W-7405-ENG-82

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: liquid; chromatographic; determination; water; sensitive; method; presence; common; interferences; detection; based; effect; equilibrium; results; reaction; aryl; aldehydes; cinnamaldehyde; methanol; eluent; form; dimethylacetal; plus; shifted; catalytic; atmosphere; hydrogen; past; column; reactor; extent; shift; resulting; change; absorbance; proportional; amount; column reactor; liquid chromatograph; liquid chromatographic; sensitive method; resulting change; catalytic atmosphere; chromatographic determination; plus water; /436/210/

Citation Formats


                    Fortier, Nancy E, and Fritz, James S. Liquid chromatographic determination of water.  United States: N. p., 1990. 
        Web.

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                    Fortier, Nancy E, & Fritz, James S. Liquid chromatographic determination of water.  United States.

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                    Fortier, Nancy E, and Fritz, James S. Tue .  
        "Liquid chromatographic determination of water".  United States.  https://www.osti.gov/servlets/purl/867604.

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@article{osti_867604,

  title        = {Liquid chromatographic determination of water},

  author       = {Fortier, Nancy E and Fritz, James S},

  abstractNote = {A sensitive method for the determination of water in the presence of common interferences is presented. The detection system is based on the effect of water on the equilibrium which results from the reaction aryl aldehydes, such as cinnamaldehyde and methanol in the eluent to form cinnamaldehyde dimethylacetal, plus water. This equilibrium is shifted in a catalytic atmosphere of a hydrogen ion form past column reactor. The extent of the shift and the resulting change in absorbance are proportional to the amount of water present.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1990},

  month        = {11}

}

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