| CAS Number | 6779-09-5 |
|---|---|
| Molecular Formula | C2H7O3P |
| Molecular Weight | 110.050 |
| InChI Key | GATNOFPXSDHULC-UHFFFAOYSA-N |
| LogP | -0.772 |
| Synonyms |
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Applications:
HPLC Separation of Glyphosate, Glyphosine, Ethylphosphonic, Methylphosphonic, Methylenediphosphonic and Phosphoric Acids on Newcrom B Column
December 4, 2019
| 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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| 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.
Select optionsGlyphosate
Glyphosine
Methylenediphosphonic acid
Methylphosphonic Acid
Phosphate
Phosphoric Acid
HPLC Separation of Glyphosate, Ethylphosphonic Acid and Methylphosphonic Acid on Newcrom B Column
December 2, 2019
| 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 |
| 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 optionsGlyphosate
Methylphosphonic Acid
Phosphate
HPLC Separation of Ethylphosphonic, Methylphosphonic, Methylenediphosphonic and Phosphoric Acids on Newcrom B Column
December 2, 2019
| 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 |
| 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 optionsMethylenediphosphonic acid
Methylphosphonic Acid
Phosphate
Phosphoric Acid
Effect of pH on Separation of Glyphosate and Ethylphosphonic Acid
July 8, 2011
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.
| 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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| 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 optionsGlyphosate
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.
| Column | Primesep SB, 4.6×150 mm, 5 µm, 100A |
| Mobile Phase | MeCN |
| Buffer | AmAc |
| Flow Rate | 1.0 ml/min |
| Detection | ELSD |
<
| 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 optionsEthylphosphonic Acid
Isopropyl Methylphosphonic Acid
Methylphosphonic Acid
