| CAS Number | 42835-25-6 |
|---|---|
| Molecular Formula | C14H12FNO3 |
| Molecular Weight | 261.253 |
| InChI Key | DPSPPJIUMHPXMA-UHFFFAOYSA-N |
| LogP | 1.60 |
| Synonyms |
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Applications:
HPLC Separation of a Complex of Quinolone Antibiotics
May 27, 2015
Quinolones are a group of synthetic broad-spectrum antibiotics with a wide variety of applications in medicine and veterinary sciences. Some quinolones have been found in food products including fish and shrimp. Primesep 100 was used to separate a mixture of quinolones and achieve baseline separation. Retention was controlled by adjusting acetonitrile in the mobile phase.
| Column | Primesep 100, 4.6×150 mm, 5 µm, 100A |
| Mobile Phase | MeCN |
| Buffer | H2SO4 |
| Flow Rate | 1.0 ml/min |
| Detection | UV, 270 nm |
| Class of Compounds |
Drug, Acid, Quinolone Antibiotics, Hydrophilic, Ionizable, Vitamin, Supplements |
| Analyzing Compounds | Oxolinic Acid, Flumequine, Ciprofloxacin, Enrofloxacin, Pefloxacin |
Application Column
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.
Select optionsEnrofloxacin
Flumequine
Oxolinic acid
Pefloxacin
HPLC Separation of Antibiotics of Group in Mixed-Mode Chromatography
May 12, 2015
Separation type: Liquid Chromatography Mixed-mode
Primesep D was used to separate the antibiotics marbofloxacin, norfloxacin, josamycin, and flumequine. Primesep D is a reverse-phase column with embedded basic ion-pairing groups designed for analysis of plasma. This method is compatible with LC/MS and prep chromatography.
| Column | Primesep D, 4.6×150 mm, 5 µm, 100A |
| Mobile Phase | Gradient MeCN – 5-50%, 10 min, 3 min hold |
| Buffer | H2SO4 – 0.1% |
| Flow Rate | 1.0 ml/min |
| Detection | UV, 250 nm |
| Class of Compounds |
Antibiotic, Drug, Hydrophobic, Ionizable |
| Analyzing Compounds | Josamycin, Norfloxacin, Marbofloxacin, Flumequine |
Application Column
Primesep D
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 optionsJosamycin
Marbofloxacin
Norfloxacin
UV Detection
Separation of Antibiotics in Mixed-mode chromatography
May 11, 2015
A complex mixture of sulphonamide, macrolide, tetracycline and fluoroquinolone antibiotics were separated in one run using mixed-mode chromatography with LC/MS -compatible conditions. All compounds are separated based on reversed-phase and/or ion-exchange mechanism. Method can be used for analysis of various classes of antibiotics and related impurities in different sample matrices (blood, urine, soil, waste water).
| Column | Obelisc R, 2.1×150 mm, 5 µm, 100A |
| Mobile Phase | Gradient MeCN – 0-25%, 6 min, 25-70% 14 min |
| Buffer | Gradient Formic Acid – 0.05%-0.3%, 10 min, 14 min hold |
| Flow Rate | 1.0 ml/min |
| Detection | UV, 270 nm |
| Class of Compounds |
Antibiotic, Drug, Hydrophobic, Ionizable |
| Analyzing Compounds | Sulphanilamide, Sulphaguanidine, Oxytetracycline, Marbofloxacin, Sulphadiazine, Chlortetracycline, Nofloxacin, Spiramycin, Cefalonium, Tylosin, Josamycin, Sulphamethoxazole, Dapsone, Sulphaquinoxalline, Flumequine |
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 optionsChlortetracycline
Dapsone
Flumequine
Josamycin
Marbofloxacin
Norfloxacin
Oxytetracycline
Spiramycin
Sulfamethoxazole
Sulfonamides
Sulphadiazine
Sulphaguanidine
Sulphanilamide
Sulphaquinoxaline
Tetracycline
Tylosin
UV Detection
Analysis of Antibiotic Flumequine and Related Impurities in Mixed-Mode Chromatography
May 11, 2015
The antibiotic Flumequine is typically used in veterinary medicine. Flumequine and related impurities have been found in animals later sold for meat. Analysis was performed by by mixed-mode chromatography on Primesep D, a reverse-phase column with embedded basic ion-pairing groups and Obelisc R with multiple separation modes (RP,NP,IE).
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
