Headspace Gas Chromatography
Determination of Dimethylamine and Triethylamine in Hydrochloride Salts of Drug Substances by Headspace Gas Chromatography using Dimethyl Sulphoxide- imidazole as Diluent
... A simple, rapid, accurate and precise analytical method for determination of secondary and tertiary amines in hydrochloride salt form of drug substances in non-aqueous medium, which does not require any derivatization, ...
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Microanalysis of carbon monoxide in decomposed blood and hepatic tissues by headspace gas chromatography and mass spectrometry
... Head-Space Gas Chromatography-Mass Spectrometry (HS-GC/MS) was used to determine blood carboxyhemoglobin (COHb%), especially in cases involving blood decomposition or death, when blood extraction is ...
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Proof of bacteria and the activity of chemical and natural antibiotics by headspace gas chromatography
... The present study presents a novel technique to monitor the emission of hydrogen and carbon dioxide as specific compounds of all facultative anaerobes by headspace gas chromatography. The described ...
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Identification of volatile organic compounds of some Trichoderma species using static headspace gas chromatography-mass spectrometry
... Abstract : Fungi release wide spectrum of volatile organic compounds (VOCs) that belong to several chemical groups with different biochemical origins such as monoterpenes, sesquiterpenes, alcohols, aldehydes, aromatic ...
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Article Identification of volatile compounds and selection of discriminant markers for elephant dung coffee using static headspace gas chromatography–mass spectrometry and chemometrics
... static headspace gas chromatography hyphenated with mass spectrometry (SHS GC–MS), and chemometric approaches were applied for multivariate analysis and the selection of marker compounds that are ...
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ANALYTICAL METHOD VALIDATION OF AN HERBAL FORMULATION BY HEADSPACE GAS CHROMATOGRAPHY USING QBD
... validated gas chromatographic method based on quality by design (QbD) for routine quality control ...A gas chromatography method was developed for routine quality control purpose of the developed ...
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Microbes a Tool for the Remediation of Organotin Pollution Determined by Static Headspace Gas Chromatography-Mass Spectrometry
... of analytes between a non-volatile solid phase, after heating and agitation of the sample the equilibrium (Cg =(C 65.. o)/(k+β) ((Cg) the concentration of the analyte, (Co ) ana[r] ...
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Analysis of Residual Solvents in Annatto Extracts Using a Static Headspace Gas Chromatography Method
... For the HSGC analysis, the standard mixture solution (0.1 mL) was pipetted into an Agilent 20 mL headspace HS sample vial and DMF (2.4 mL) was added to the vial. The vial was immediately capped and sealed as ...
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Use of headspace–gas chromatography–ion mobility spectrometry to detect volatile fingerprints of palm fibre oil and sludge palm oil in samples of crude palm oil
... DT control samples were compared to SPO-spiked DT samples and a significant SPO fingerprint was always present in the spiked samples. None of the DT control samples contained any SPO-related peaks, indicating they were ...
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DETERMINATION OF RESIDUAL SOLVENTS IN PAROXETINE BY HEADSPACE GAS CHROMATOGRAPHY
... Gas chromatography is generally used to determine residual solvents due to its excellent separation abilities and low limit of ...In gas chromatography, the sample is either dissolved in a ...
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Development and Validation of Static HS-GC Method for the Determination and Quantification of Residual Solvents of Bromhexine Hydrochloride (BHX)
... decade, gas chromatography have became the most practical and popular techniques to analyze the content of residual solvents in APIs (Pandey et ...usingstatic headspace gas ...
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EVALUATION OF ANTACID ACTIVITY OF MICROEMULSION FORMULATION OF BLEND OF ESSENTIAL OIL
... by Headspace Gas chromatography use of a marker compound which was linalool for coriander oil, cineol for cardamom oil, anethol for fennel oil, carvone for caraway oil, thymol for ajowan oil and ...
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The Effects of Protein Concentration and Temperature on Flavor Delivery of 2,4-Dimethylbenzaldehyde and Ethyl Butyrate in Whey Protein Isolate Solutions
... static headspace gas chromatography, relative vapor pressure (rvp) (peak area of flavorant in system / peak area of flavorant in water) was determined for each fat replacer and compared to rvp in ...
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Pharmaceutical Applications of Gas Chromatography
... One of the major disadvantages of GC is that it is applicable only for volatile compounds or compounds that can be made volatile by chemical modification at a temperature with which it decomposes. When an unknown mixture ...
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Simultaneous Determination of Disinfection By-products in Water Samples from Advanced Membrane Treatments by Headspace Solid Phase Microextraction and Gas Chromatography-Mass Spectrometry
... A headspace-solid phase microextraction (HS-SPME) and gas chromatography-mass spectrometry (GC-MS) method has been developed for the simultaneously determination of 20 disinfection by-products (DBPs) ...
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Ways of Analysis of Fire Effluents and Assessment of Toxic Hazards
... The first term is aerosol which is defined as a suspension of liquid droplets, or solid particles in a gas phase matrix. Furthermore, the particle sizes range from under 10 nm to over 10 µm. The second type is ...
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Analytical Techniques for Identification and Quantification of Polycyclic Aromatic Hydrocarbons
... 17. Tuteja, G., Rout, C., and Bishnoi, N. R., Quantification of polycyclic aromatic hydrocarbons in leafy and underground vegetables: a case study around Panipat city, Haryana, India. Journal of Environmental Science and ...
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“Chromatographic Analysis of Phytopharmaceuticals – A Review” by Aruna M. Garud, Varsha M. Jadhav, Vilasrao J. Kadam, India.
... Layer Chromatography (TLC), High Performance Thin Layer Chromatography (HPTLC), High Pressure Liquid Chromatography (HPLC), Gas Chromatography (GC) are used for the analysis of ...
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Method development for the quantitative determination of short chain fatty acids in microbial samples by solid phase extraction and gas chromatography with flame ionization detection
... Various separation techniques have been used to de- termine SCFA in biological fluids, the most widely used being gas chromatography (GC) (McGrath, Weir et al. 1992). By combining selective GC detectors, a ...
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Rapid analysis of formic acid, acetic acid, and furfural in pretreated wheat straw hydrolysates and ethanol in a bioethanol fermentation using atmospheric pressure chemical ionisation mass spectrometry
... on gas chromatography (GC) or high-performance liquid chromatography (HPLC), both of which may involve long sample run times and often require exten- sive sample preparation prior to ...equilibrium ...
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