Ethylphosphonic Acid

Ethylphosphonic Acid structural formula

CAS Number6779-09-5
Molecular FormulaC2H7O3P
Molecular Weight110.050
InChI KeyGATNOFPXSDHULC-UHFFFAOYSA-N
LogP-0.772
Synonyms
  • Ethylphosphonic acid
  • Phosphonic acid, ethyl-
  • 6779-09-5
  • EINECS 229-839-2
  • Ethylphosphonate

Applications:

HPLC Separation of Glyphosate, Glyphosine, Ethylphosphonic, Methylphosphonic, Methylenediphosphonic and Phosphoric Acids on Newcrom B Column

December 4, 2019


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Condition

Column Newcrom B, 4.6×150 mm, 5 µm, 100A
Mobile Phase MeCN Gradient  -40-10%, 15 min
Buffer Formic Acid Gradient  -1- 5%, 15 min
Flow Rate 1.0 ml/min
Detection CAD

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Description

Class of Compounds Acids, Plant growth regulator, Herbicide, Hydrophilic, Ionizable
Analyzing Compounds Ethylphosphonic acid,                      Phosphate Ion, Methylphosphonate, Methylenediphosphonic acid, Glyphosate, Glyphosine

Application Column

Newcrom B

The Newcrom columns are a family of reverse-phase-based columns. Newcrom A, AH, B, and BH are all mixed-mode columns with either positive or negative ion-pairing groups attached to either short (25 Å) or long (100 Å) ligand chains. Newcrom R1 is a special reverse-phase column with low silanol activity.

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Application Analytes:
Ethylphosphonic Acid
Glyphosate
Glyphosine
Methylenediphosphonic acid
Methylphosphonic Acid
Phosphate
Phosphoric Acid
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.

HPLC Separation of Glyphosate, Ethylphosphonic Acid and Methylphosphonic Acid on Newcrom B Column

December 2, 2019

HPLC Separation of Glyphosate, Ethylphosphonic Acid and Methylphosphonic Acid on Newcrom B Column_1203

Condition

Column Newcrom B, 4.6×150 mm, 5 µm, 100A
Mobile Phase MeCN/H2O – 40/59%
Buffer Formic Acid – 1%
Flow Rate 1.0 ml/min
Detection CAD

Description

Class of Compounds Ions, Hydrophilic, Ionizable
Analyzing Compounds Ethylphosphonic acid,                      Phosphoric Acid, Methylphosphoric Acid, Glyphosate

Application Column

Newcrom B

The Newcrom columns are a family of reverse-phase-based columns. Newcrom A, AH, B, and BH are all mixed-mode columns with either positive or negative ion-pairing groups attached to either short (25 Å) or long (100 Å) ligand chains. Newcrom R1 is a special reverse-phase column with low silanol activity.

Select options
Application Analytes:
Ethylphosphonic Acid
Glyphosate
Methylphosphonic Acid
Phosphate
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.

HPLC Separation of Ethylphosphonic, Methylphosphonic, Methylenediphosphonic and Phosphoric Acids on Newcrom B Column

December 2, 2019


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HPLC Separation of Ethylphosphonic, Methylphosphonic, Methylenediphosphonic and Phosphoric acids on Newcrom B Column_1201

 

Condition

Column Newcrom B, 4.6×150 mm, 5 µm, 100A
Mobile Phase MeCN/H2O – 20/78%
Buffer Formic Acid – 2%
Flow Rate 1.0 ml/min
Detection CAD

Description

Class of Compounds Acids, Hydrophilic, Ionizable
Analyzing Compounds Ethylphosphonic acid,                      Phosphoric, Methylphosphonic Acid, Methylenediphosphonic acid

Application Column

Newcrom B

The Newcrom columns are a family of reverse-phase-based columns. Newcrom A, AH, B, and BH are all mixed-mode columns with either positive or negative ion-pairing groups attached to either short (25 Å) or long (100 Å) ligand chains. Newcrom R1 is a special reverse-phase column with low silanol activity.

Select options
Application Analytes:
Ethylphosphonic Acid
Methylenediphosphonic acid
Methylphosphonic Acid
Phosphate
Phosphoric Acid
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.

Effect of pH on Separation of Glyphosate and Ethylphosphonic Acid

July 8, 2011

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Glyphosate is broad spectrum herbicide to kill weeds. Presence of glyphosate in water, fruits and veggies is regulated. Alkylphosphonic acids are decomposition byproducts of chemical warfare agents. Analysis of phosphonic acid in water is regulated by Environmental Protection Agency (EPA). All phosphonic acids are polar acidic compounds. Method was developed for glyphosate and ethylphosphonic acid. Both compounds are retained by ion-exchange mechanism. Method is compatible with LC/MS and can be used for analysis of glyphosate and alkylphosphonic acids in various matrices.

 

Condition

Column Obelisc R, 4.6×150 mm, 5 µm, 100A
Mobile Phase MeCN – 10%
Buffer AmAc
Flow Rate 1.0 ml/min
Detection ELSD 50C

 

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Description

Class of Compounds
 Insecticide, Herbicide, Fungicide,  Hydrophobic, Ionizable
Analyzing Compounds Glyphosate, Ethylphosphonic acid

Application Column

Obelisc R

SIELC has developed the Obelisc™ columns, which are mixed-mode and utilize Liquid Separation Cell technology (LiSC™). These cost-effective columns are the first of their kind to be commercially available and can replace multiple HPLC columns, including reversed-phase (RP), AQ-type reversed-phase, polar-embedded group RP columns, normal-phase, cation-exchange, anion-exchange, ion-exclusion, and HILIC (Hydrophilic Interaction Liquid Chromatography) columns. By controlling just three orthogonal method parameters - buffer concentration, buffer pH, and organic modifier concentration - users can adjust the column properties with pinpoint precision to separate complex mixtures.

Select options
Application Analytes:
Ethylphosphonic Acid
Glyphosate

Application Detection:
ELSD Detection
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.

HPLC Separation of Methylphosphonic Acid and Related Products

October 14, 2010


Alkylphosphonic acids are decomposition byproducts of chemical warfare agents. Analysis of phosphonic acid in water is regulated by Environmental Protection Agency (EPA). All phosphonic acids are polar acidic compounds. Analysis for retention and separation of methylphosphonic, ethylphosphonic, ethyl methylphosphonic and isopropyl methylphosphonic acids was developed using Primesep SB reversed-phase anion-exchange column. Method is compatible with LC/MS and can be used for quantitation of phosphonic acid in water.

Condition

Column Primesep SB, 4.6×150 mm, 5 µm, 100A
Mobile Phase MeCN
Buffer AmAc
Flow Rate 1.0 ml/min
Detection ELSD

 

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Description

Class of Compounds
 Acid,  Hydrophilic, Ionizable
Analyzing Compounds Methylphosphonic, Ethylphosphonic, Ethyl methylphosphonic, Isopropyl methylphosphonic acids

Application Column

Primesep SB

The Primesep family of mixed-mode columns offers a wide variety of stationary phases, boasting unprecedented selectivity in the separation of a broad array of chemical compounds across multiple applications. Corresponding Primesep guard columns, available with all stationary phases, do not require holders. SIELC provides a method development service available to all customers. Inquire about our specially-tailored custom LC-phases for specific separations.

Select options
Application Analytes:
Ethyl Methylphosphonic Acid
Ethylphosphonic Acid
Isopropyl Methylphosphonic Acid
Methylphosphonic Acid

Application Detection:
ELSD Detection
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.