[PDF] Top 20 Argentated silica gel chromatography for separation of g-linolenic acid from microalgae
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Argentated silica gel chromatography for separation of g-linolenic acid from microalgae
... ester from microalgae using a simple and scaleable ...step from the microalgal biomass followed by fractionation on a silver-silica gel chromatography ...(silver-silica ... See full document
6
Separation and identification of heavy metal ions by thin layer chromatography on silica gel G
... humic acid is released from straw when mixed with mud, basically a mixture of sand and ...Humic acid increases clay's plasticity[20]. Humic acid is a principal component of humic substances, ... See full document
7
Spirulina: A Source of Gamma-linoleic Acid and Its Applications
... liquid chromatography, and the scalability of HPLC for purifying large quantities of fatty acids are ex- pensive and impractical [4, ...argentite silica gel column chromato- graphy for GLA ... See full document
6
Rapid Separation of Some Toxic Heavy Metal ions by Thin Layer Chromatography
... the separation of metal ions was very less, therefore decided to find out and to use the analytical potential of glycine as mobile phase using silica gel-G as stationary phase for analysis of ... See full document
6
Chromatographic Separation of Heavy Metal Cations on a Silica gel-G
... layer chromatography (TLC) is considered to be superior to other chromatographic techniques, because of its simplicity and relatively low ...The separation possibilities in TLC are greatly enhanced when ... See full document
7
Separation and identification of heavy metal ions by thin layer chromatography on silica gel G
... the separation of metal ions such as Cr (VI), Cr (III), Ni (II), Co (II), Cu(II), Fe(III), Zn(II) and Mo(VI) from their two, three and four component ...of silica gel ‘G’ using aqueous ... See full document
6
Synthesis of Alkyl Esters from Vegetable Oils Catalyzed by Lemon Juice as Natural Catalyst and Ethanol as Reagent
... difference, from a structural and spectroscopically point of view, can be observed between waste cooking oil and refined vegetable ...esters from vegetable oils ... See full document
5
Synthesis and antitumor evaluation in vitro of 5 bromo N phenyl substituted isatin derivatives
... To a solution of (Z)-4-((5-bromo-2-oxoindolin-3-ylidene)methyl)benzonitrile (0.30 g, 0.90 mmol) in DCM was added copper acetate (0.33g, 1.80 mmol), phenylboronic acid (0.22 g, 1.80 mmol) and ... See full document
6
Studies on some biologically important compounds
... 711 LEAVES ETHANOL EXTRACTION COUNTER CURRENT DISTRIBUTION SILICA GEL CHROMATOGRAPHY ACTIVE FRACTION A ACTIVE FRACTION B ALUMINA CHROMATOGRAPHY PREPARATIVE GAS CHROMATOGRAPHY CHART II Su[r] ... See full document
64
Chemistry and bioactivity of compounds of genus Schumacheria and its close chemotaxonomic relationship to the genus Dillenia
... (1.0 g) of flower methanol extract (10.0 g) of ...isolated from the ethyl acetate portion (0.9 g) of flower methanol extract ...(10.0 g) of ... See full document
7
An economic evaluation of the silica gel adsorption process for the separation of hafnium from zirconium
... POSSIBLE REDUCTIONS IN COST OF THE SILICA GEL ADSORPTION PROCESS The cost figures presented in Table IV indicate the silica gel adsorption process is not competitive with the thiocyanate[r] ... See full document
13
Synthesis of deuterium labelled chloroquine, hydroxychloroquine and their metabolites
... ethyl iodide slowly. The reaction solution was stirred for 8 h at room temperature. The mixture was diluted with water (150 mL) under water/ice bath and extracted with EtOAc (100 mL×9). The combined organic layers were ... See full document
6
Development of novel heterocyclic compounds as vascular targeting agents
... The substitution pattern of the methoxy groups on these molecules (Fig 77) supply appropriate directing effects for intramolecular Friedel Crafts ring closure. This is true if the acid is located on either ring. ... See full document
220
Rapid purification of gram quantities of β sitosterol from a commercial phytosterol mixture
... Prior work using Na-Y zeolite involved large amounts of material (60:1, w:w; adjusted based on total phytos- terol amount) [14,15]. This method also required a high torque mixer and several manual sample loadings (mul- ... See full document
5
DEVELOPMENT AND VALIDATION OF SIMULTANEOUS ESTIMATION FOR PIPERINE AND GALLIC ACID IN ZEAL HERBAL GRANULES BY HPTLC METHODA
... wavelength scanning at 254 nm. The method validated as per ICH guideline, shows regression co-efficient value for Piperine 0.9992 and 0.9979 for Gallic acid in range of 40-90 µg/mL Recovery of Piperine and Gallic ... See full document
9
Immobilization of Chetoceros sp Microalgae with Silica Gel through Encapsulation Technique as Adsorbent of Pb Metal from Solution
... Adsorption equilibrium time needs to be identified to obtain maximum adsorption of adsorbate on adsorbent surface, the shorter the reaction time, the higher the reaction rate. Interaction time additional does not ... See full document
8
5,10 A2B2 Type meso Substituted Porphyrins A Unique Class of Porphyrins with a Realigned Dipole Moment
... 5,10-Bis(4-ethynylphenyl)-15,20-bis(4-methylphenyl)porphyrin 27: Following procedure B, n-butyllithium (4 mL of 2.5M solution in n-hexane, 10 mmol) was slowly added (ca. 1h) under an argon atmosphere to a 100 mL Schlenk ... See full document
44
New interlocked molecular machines.
... switched from isomer E to Z using X = 380 nm and the stilbene is switched from isomer E to Z using X = 313 ...azobenzene from E to Z, causing a-CD to reside at the stilbene site (PSS-Zn=nEc=c; PSS ... See full document
306
Engineering Heme Proteins for Olefin and Carbon−Hydrogen Bond Functionalization Reactions
... All initial rate experiments were conducted in an anaerobic chamber. Initial rate measurements were performed using 0.2 mol% purified enzymes in 400 µL scale reactions. A sealed 6-mL vial charged with glucose (250 mM, ... See full document
236
Efficient synthesis of novel chalcogen containing derivatives of DNA nucleobases
... (0.041 g, ...(0.241 g, ...by silica gel column (1 : 4 methanol/dichloromethane as eluent) to give ...0.250 g as an yellowish white solid in 61% ... See full document
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