| CAS Number | 957-51-7 |
|---|---|
| Molecular Formula | C16H17NO |
| Molecular Weight | 239.318 |
| InChI Key | QAHFOPIILNICLA-UHFFFAOYSA-N |
| LogP | 2.62 |
| Synonyms |
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Applications:
HPLC Analysis of Diphenamid on Primesep 100 and Obelisc R
September 14, 2015
Diphenamid is an herbicide which selectively controls weedy grasses and broadleaf plants in the production of tobacco, tomatoes, peppers, cotton, and many more commercial crops. Diphenamid is a preemergence herbicide that is surface applied to soils and can be expected to control weeds for 6-8 months. Diphenamid was analyzed on two different stationary phases. Primesep 100 is a reverse phase column that contains embedded acidic ion-pairing groups, while Obelisc R retains with long hydrophobic chains and multiple ionic pairing groups on the surface. Method is LC/MS compatible and can be replicated to analyze dozens of other pesticides.
| Column | Obelisc R, 2.1×150 mm, 5 µm, 100A |
| Mobile Phase | Gradient MeCN – 25-70% |
| Buffer | Gradient AmAc pH 3.0- 30-60 mM |
| Flow Rate | 0.4 ml/min |
| Detection | UV, 270 nm |
| Column | Obelisc R, 2.1×150 mm, 5 µm, 100A |
| Mobile Phase | Gradient MeCN – 10-70% |
| Buffer | Gradient AmAc pH 3.0- 20-60 mM |
| Flow Rate | 0.4 ml/min |
| Detection | UV, 270 nm |
| Column | Primesep 100, 2.1×150 mm, 5 µm, 100A |
| Mobile Phase | Gradient MeCN – 10-70% |
| Buffer | Gradient AmAc pH 3.0- 20-60 mM |
| Flow Rate | 0.4 ml/min |
| Detection | UV, 270 nm |
| Class of Compounds |
Herbicide, Insecticide, Hydrophobic, Ionizable |
| Analyzing Compounds | Diphenamid |
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.
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Primesep 100
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.
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Diphanamid Separation on Primesep B2 Column
August 24, 2015
| Column | Primesep B2, 2.1×150 mm, 5 µm, 100A |
| Mobile Phase | Gradient MeCN – 25-70%, 15 min, 7 min hold |
| Buffer | Gradient AmAc pH 3.0- 30-60 mM, 15 min, 7 min hold |
| Flow Rate | 0.4 ml/min |
| Detection | UV, 250 nm |
| Class of Compounds |
Insecticide, Herbicide, Fungicide, Hydrophobic, Ionizable |
| Analyzing Compounds | Diphenamid |
Application Column
Primesep B2
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
HPLC Analysis of Diphenamid
August 10, 2015
| Column | Obelisc R, 4.6×150 mm, 5 µm, 100A |
| Mobile Phase | MeCN – 40% |
| Buffer | AmFm pH 3.0- 20 mM |
| Flow Rate | 1.0 ml/min |
| Detection | UV, 250 nm |
| Class of Compounds |
Insecticide, Herbicide, Fungicide, Hydrophobic, Ionizable |
| Analyzing Compounds | Diphenamid |
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
Diphanamid Separation on Obelisc R Mixed-Mode HPLC Column
June 13, 2015
| Column | Obelisc R, 2.1×150 mm, 5 µm, 100A |
| Mobile Phase | Gradient MeCN – 10-70%, 15 min, 7 min hold |
| Buffer | Gradient AmAc pH 3.0- 20-60 mM, 15 min, 7 min hold |
| Flow Rate | 0.4 ml/min |
| Detection | UV, 250 nm |
| Class of Compounds |
Insecticide, Herbicide, Fungicide, Hydrophobic, Ionizable |
| Analyzing Compounds | Diphenamid |
Application Column
Obelisc R
Column Diameter: 2.1 mm
Column Length: 150 mm
Particle Size: 5 µm
Pore Size: 100 A
