Determination of 5-hydroxymethyl-2-furaldehyde in royal jelly by a rapid reversed phase HPLC method

2013 ◽  
Vol 5 (19) ◽  
pp. 5010 ◽  
Author(s):  
Marco Ciulu ◽  
Roberta Farre ◽  
Ignazio Floris ◽  
Valeria M. Nurchi ◽  
Angelo Panzanelli ◽  
...  
Keyword(s):  
Royal Jelly ◽  
Reversed Phase ◽  
Hplc Method ◽  
Reversed Phase Hplc

scholarly journals Simultaneous Determination of Preservatives (Methyl Paraben and Propyl Paraben) in Sucralfate Suspension Using High Performance Liquid Chromatography

2011 ◽  
Vol 8 (1) ◽  
pp. 340-346 ◽  
Author(s):  
Rajesh M. Kashid ◽  
Santosh G. Singh ◽  
Shrawan Singh
Keyword(s):  
High Performance Liquid Chromatography ◽  
Simultaneous Determination ◽  
Mobile Phase ◽  
High Performance ◽  
Reversed Phase ◽  
Hplc Method ◽  
Reversed Phase Hplc ◽  
Methyl Paraben ◽  
Propyl Paraben

A reversed phase HPLC method that allows the separation and simultaneous determination of the preservatives methyl paraben (M.P.) and propyl paraben (P.P.) is described. The separations were effected by using an initial mobile phase of water: acetonitrile (50:50) on Inertsil C18 to elute P.P. and M.P. The detector wavelength was set at 205 nm. Under these conditions, separation of the two components was achieved in less than 10 min. Analytical characteristics of the separation such as precision, specificity, linear range and reproducibility were evaluated. The developed method was applied for the determination of preservative M.P. and P.P. at concentration of 0.01 mg/mL and 0.1 mg/mL respectively. The method was successfully used for determining both compounds in sucralfate suspension.

A New Reversed Phase HPLC Method for the Determination of Spiramycins I, II and III

1998 ◽  
Vol 11 (3) ◽  
pp. 167-171 ◽  
Author(s):  
Shabana I. Khan ◽  
David C. Limburg ◽  
Iklas A. Khan ◽  
John S. Williamson
Keyword(s):  
Reversed Phase ◽  
Hplc Method ◽  
Reversed Phase Hplc

Chiral Chromatography Studies of Chemical Behavior of Cinacalcet on Polysaccharide Chiral Reversed-Phase HPLC Stationary Phases

2012 ◽  
Vol 95 (6) ◽  
pp. 1639-1643 ◽  
Author(s):  
Michal Douša ◽  
Jiřiacute; Břicháč
Keyword(s):  
Chiral Stationary Phase ◽  
Stationary Phases ◽  
Active Pharmaceutical Ingredient ◽  
Reversed Phase ◽  
Hplc Method ◽  
Reversed Phase Hplc ◽  
Chiral Chromatography ◽  
Chemical Behavior ◽  
Analytical Resolution

Abstract A rapid HPLC method for the analytical resolution of cinacalcet enantiomers was developed. Four chiral columns (two amylose and two cellulose type) were evaluated in RP systems. Excellent enantioseparation with a resolution of more than 6 was achieved on Chiralpak AY (amylose 5-chloro-2-methylphenylcarbamate chiral stationary phase) using 10 mM triethylamine (pH 8.0)–acetonitrile (40 + 60, v/v) mobile phase. Validation of the HPLC method, including linearity, LOD, LOQ, precision, accuracy, and selectivity, was performed according to the International Conference on Harmonization guidelines. The method was successfully applied for the determination of (S)-cinacalcet in enantiopure active pharmaceutical ingredient (R)-cinacalcet.

scholarly journals A Fast and Validated Reversed-Phase HPLC Method for Simultaneous Determination of Simvastatin, Atorvastatin, Telmisartan and Irbesartan in Bulk Drugs and Tablet Formulations

2017 ◽  
Vol 86 (1) ◽  
pp. 1 ◽  
Author(s):  
Hassan Alhazmi ◽  
Ahmed Alnami ◽  
Mohammed Arishi ◽  
Raad Alameer ◽  
Mohammed Al Bratty ◽  
...  
Keyword(s):  
Simultaneous Determination ◽  
Reversed Phase ◽  
Hplc Method ◽  
Reversed Phase Hplc ◽  
Tablet Formulations

Development and Validation of a Reversed-Phase HPLC Method for the Determination of Deflazacort in Pharmaceutical Dosage Forms

2007 ◽  
Vol 65 (9-10) ◽  
pp. 591-594 ◽  
Author(s):  
G. M. Corrêa ◽  
L. P. Bellé ◽  
L. Bajerski ◽  
S. H. M. Borgmann ◽  
S. G. Cardoso
Keyword(s):  
Reversed Phase ◽  
Dosage Forms ◽  
Hplc Method ◽  
Reversed Phase Hplc ◽  
Pharmaceutical Dosage Forms ◽  
Development And Validation

scholarly journals Simultaneous Identification of Phenolic Compound from the Honey of Stingless Bee by Using HPLC

2019 ◽  
Vol 5 ◽  
pp. 1
Author(s):  
Asma Nisar ◽  
Awang Bono ◽  
Hina Ahmad ◽  
Ambreen Lateef ◽  
Maham Mushtaq ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Gallic Acid ◽  
Royal Jelly ◽  
Antioxidant Properties ◽  
Reversed Phase ◽  
Hplc Method ◽  
Stingless Bee ◽  
Reversed Phase Hplc ◽  
Therapeutic Uses ◽  
Simultaneous Identification

Apitherapy is a branch of alternative medicine that uses honey bee products including honey, propolis, pollen, bee venom, and royal jelly. Stingless bee honey reportedly has many medicinal and therapeutic uses and excellent potency. This study aimed to identify the phenolic compounds using a fast and specific reversed-phase HPLC method in the extract of stingless bee honey. A magnetic stirrer was used for the pretreatment process of a sample with methanol at a temperature of 50°C for 40 min, followed by separation on a column size of 250 mm x 4.6 mm (5μm) hypersil gold-C18 (Thermo Electron Corporation) with water–methanol–acetonitrile (45:40:15 v/v/v) containing acetic acid 1.0% as a mobile phase. A 254-nm wavelength was used to detect the extract. The standard retention times of the gallic acid, rutin, ascorbic acid, quercetin, and kaempferol were found to be at 2.610, 2.875, 3.150, 5.789, and 8.983 min, respectively. The existence of gallic acid, rutin, ascorbic acid, kaempferol, and quercetin in the stingless bee honey extract was found to match according to the standard retention time. In the stingless bee honey, the retention times of gallic acid, rutin, ascorbic acid, quercetin, and kaempferol were found to be at 2.613, 2.866, 3.157, 5.790, and 8.966 min, respectively. In the stingless bee honey, the amounts of gallic acid, rutin, ascorbic acid, quercetin, and kaempferol were 1.426%, 2.533%, 16.922%, 1.851%, and 13.773%, respectively. According to the results, it is concluded that stingless bee honey is rich in phenolic acids and flavonoid compounds that have strong antioxidant properties.

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