HPLC-DAD
Optimization and validation of a derivatization method for analysis of biogenic amines in wines using RP-HPLC-DAD
... Развиен е и оптимизиран аналитички метод за определување на биогените амини трип- тамин, путрескин, хистамин, фенилетиламин, тирамин, кадаверин, спермидин и спермин во црвени и бели винa со примена на претколонска ...
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Bio guided profiling and HPLC DAD finger printing of Atriplex lasiantha Boiss
... Methods: The polarity based extraction process was carried out using fourteen solvents to figure out best extraction solvent and bioactive fractions. Total phenolic-flavonoids contents were quantified colorimetrically ...
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Stability-indicating RP- HPLC -DAD method for the simultaneous estimation of Tramadol HCl and Diclofenac sodium
... A simple, fast and accurate stability indicating RP- HPLC-DAD method is described for simultaneous determination of Tramadol HCl and Diclofenac sodium in pharmaceutical formulations. The developed method ...
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Characterization and quantification of flavonoids and saponins in adzuki bean (Vigna angularis L.) by HPLC–DAD–ESI–MSn analysis
... AB-8 resin was good at separating chemical constituent according to the polarity [22]. After that, polyamide col- umn was employed to further purify the flavonoids. 40% Ethanol eluent from polyamide column was obtained, ...
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Screening for cytotoxic chemical constituents from Justicia procumbens by HPLC–DAD–ESI–MS and NMR
... In order to reveal effective substances in the ethyl ace- tate extract of J. procumbens, a HPLC–ESI–QTOF–MS analysis method has been developed. To improve liquid chromatographic resolution, an ether-linked phenyl ...
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Determination of flutamide and two major metabolites using HPLC–DAD and HPTLC methods
... Flutamide is a potential antineoplastic drug classified as an anti-androgen. It is a therapy for men with advanced prostate cancer, administered orally after which it undergoes extensively first pass metabolism in the ...
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Persistence of Quizalofop Ethyl in Soil and Safety to Ground Nut by Ultrasonic Bath Extraction and HPLC-DAD Detection
... concentration must be achieved before it’s instrumental determination. Analytical methods for the quantification of FOP’s residues particularly quizalofop ethyl from an environmental matrix was achieved by Gas ...
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CHARACTERISATION OF FLAVONOID GLYCOSIDES IN PHARMACOPOEIAL PREPARATION OF CISSUS VERTICILLATA (L) NICOLSON & C E JARVIS) USING HPLC DAD AND HPLC MS
... the HPLC-DAD chromatograms of Cissus were identified as Vitexin and isovitexin respectively by comparison their chromatographic and spectroscopic data with authentic ...
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ANTIOXIDANT AND CYTOTOXIC ACTIVITY AND POLYPHENOLS ANALYSIS USING HPLC DAD MS/MS OF BETULA RADDEANA GROWING IN GEORGIA
... An HPLC–DAD-ESI-MS/MS based method was proven suitable and sensitive to determine different flavonoids in ...an HPLC–UV- MS/MS based method for the determination of several flavonoids, which can ...
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HPLC-DAD and HPLC-ESI-Q-ToF characterisation of early 20th century lake and organic pigments from Lefranc archives
... ) or electrospray-Quadrupole-Time of Flight tandem mass spectrometry detector (ESI-Q-ToF) were chosen given their considerable capacity to identify such complex and widespread organic materials. Although the inorganic ...
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HPLC-DAD ESTIMATION OF UNDECLARED SYNTHETIC COMPOUNDS IN SELECTED INDIAN HERBAL FORMULATIONS
... The present investigation was carried out to detect the most common synthetic compounds in selected Indian herbal formulations using high-pressure liquid chromatography-diode array detector (HPLC-DAD) and ...
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Development and Validation of an HPLC-DAD Method to Quantify Caffeine in Time-release Dosage Forms
... The samples containing pellets were crushed, dissolved in water (40 ml) and sonicated for 10 min. The solution was filtered with qualitative filter paper. The filtrate was transferred to a 50 ml volumetric flask and the ...
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Development and Distinction of Rhizoma rodgersiae with HPLC DAD Fingerprint Analysis Combined with Chemical Pattern Recognition Techniques
... reliable HPLC-DAD fingerprint analysis method for quality consistency eval- uation of the medicinal plant collected from different regions and harvest times was developed for the first time, and then 10 ...
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A novel validated RP HPLC DAD method for the estimation of Lenvatinib Mesylate in bulk and pharmaceutical dosage form
... A novel approach was used to develop and validate a rapid, accurate, precise, simple, efficient and reproducible isocratic Reversed Phase-High Performance Liquid Chromatographic (RP-HPLC-DAD) method for the ...
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RP-HPLC-DAD method for simultaneous determination of desmedipham, phenmedipham and ethofumesate in a pesticide formulation
... This study shows the new possibility for simultaneous determination of desmedipham, phenmedipham and ethofumesate in the pesti- cide formulation “Inter OF” by the RP-HPLC- DAD using LiChrospher 60 RP-select ...
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Qualitative and Quantitative Analysis of Five Bioactive Flavonoids in Salix bordensis Turcz by HPLC DAD and HPLC ESI MS
... The established HPLC-MS/MS and HPLC-DAD method was applied to the simultaneous determination of five bioactive flavonoids in Salix bordensis Turcz. The representative chromatograms of the extracts of ...
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Optimization and Validation of LLE/HPLC-DAD Method to Determine the Residues of Selected PAHs in Surface Water
... extracted by developed method and were analysed by HPLC-DAD method. For determining the intra-day precision at three different concentration levels with six replicates for each level were analysed on same ...
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Preparative HPLC for large scale isolation, and salting-out assisted liquid–liquid extraction based method for HPLC–DAD determination of khat (Catha edulis Forsk) alkaloids
... ously shaken using vortex mixer for 6 min. Then about 2 mL of 15% aqueous NaOH solution was added to bring the solution alkaline (about pH 10, checked by universal paper indicator) followed by 10 mL of ethyl acetate was ...
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Simultaneous quantitation of chloroquine and primaquine by UPLC DAD and comparison with a HPLC DAD method
... a HPLC method with a long run time of 20 ...UPLC- DAD method for simultaneously quantifying chloroquine and ...conventional HPLC-DAD method for the analysis of these anti-malarial drugs in ...
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HPLC-DAD-ESI/MS Monitoring of Stilbenes Content in Vranac Red Wines Produced with Traditional and Modern Fermentation Methods
... The HPLC-DAD-ESI/MS technique was used to identify and quantify the stilbenes in Vranac wines produced in two different vintage years (2008 and 2009), using different fermentation tanks (ves- sel, Sifa and ...
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