CAS Number | 59-43-8 |
---|---|
Molecular Formula | C12H17ClN4OS |
Molecular Weight | 300.810 |
InChI Key | MYVIATVLJGTBFV-UHFFFAOYSA-M |
LogP | -1.42 |
Synonyms |
|
Applications:
HILIC Separation of Vitamins Group B
August 22, 2008
Separation of vitamins group B is achieved on Obelisc N column in HILIC mixed-mode. Vitamins of this group are different in polarity and ionic properties. Retention and separation is achieved by optimization of amount of ACN, buffer and buffer pH. Combination of UV and ELSD detection is used to monitor HPLC separation. B vitamins are water-soluble vitamins that play an important role in cell metabolism. Supplements containing all six are generally referred to as a vitamin B complex. Individual B vitamin supplements are referred to by the specific name of each vitamin. This method can be used to analyze individual B vitamins as well as vitamin B complex. Isolation of impurities as well as degradation products is possible by preparative chromatography.
Column | Obelisc N , 4.6×150 mm, 5 µm, 100A |
Mobile Phase | MeCN/H2O |
Buffer | AmAC pH 4.5 – 10 mM |
Flow Rate | 1.0 ml/min |
Detection | UV, 270 nm, ELSD |
Class of Compounds |
Drug, Vitamin B₆, Hydrophobic, Ionizable |
Analyzing Compounds | Pyridoxine, Niacinamide, Pantothenic acid, Riboflavin |
Application Column
Obelisc N
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 optionsVitamin B1 (Thiamine)
Vitamin B2 (Riboflavin)
Vitamin B3 (Niacin)
Vitamin B5 (Pantothenic Acid)
Vitamin B6 (Pyridoxine)
UV Detection
HPLC Separation of Vitamin B
April 3, 2004
Primesep C separates B vitamins with baseline resolution by a combination of cation exchange, complex formation, and hydrophobic interactions. Vitamin B1 (thiamine), vitamin B2 (riboflavin), and vitamin B6 (pyridoxine) are separated with a mobile phase of water, acetonitrile (MeCN, ACN) and triethylamine (TEA) phosphate with UV detection at 280 nm.
Column | Primesep C , 4.6×150 mm, 5 µm, 100A |
Mobile Phase | MeCN/H2O -10/90% |
Buffer | NEt3H3PO4 Ph 3.0 – 20 Mm |
Flow Rate | 1.0 ml/min |
Detection | UV, 280 nm |
Class of Compounds |
Drug, Vitamin B₆, Hydrophobic, Ionizable |
Analyzing Compounds | Pyridoxine, Thiamine, Riboflavin |
Application Column
Primesep C
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 optionsVitamin B1 (Thiamine)
Vitamin B2 (Riboflavin)
Vitamin B6 (Pyridoxine)
Vitamins