propylene glycolrifamycin sodium injectiondetrmination of related substancesimpurity controlGCObjective: To establish a GC method for the determination of propylene glycol in rifamycin sodium injection. Methods: The GC method was conducted on a DB- FFAP capillary column. The injector and detector were ...
Determination of Monoglycerides and Propylene Glycol Esters of Fatty Acids in Food Additive Preparations by GC without Derivatization A simple method was developed for the determination of monoglycerides (MG) and propylene glycol esters of fatty acid (PGE) in food additive preparations wi... Y ...
Assessment of hepatic ω-oxidation of fatty acids by cytochrome P450IV enzymes in toxicology studies can be a means of evaluating test compound effects on peroxisomal proliferation. Routine assay of ω-oxidation, however, requires a simpler method of enzymatic analysis than currently described GC, TLC...
an internal standard, while the GC system requires solvent extraction and may be affected by problems such as ther- mal decomposition and adsorption [11]. Although the detec- tion of organic nitrates using liquid chromatography–mass spectrometry (LC–MS) has been recently reported [11], an ...
A procedure for the quantitative estimation of mono- (MG), diglycerides (DG) and propylene glycol mono fatty acid esters (MP) in margarine and shortening was studied.After the esters was cleaned up by thin layer chromatography, they were estimated individually by programmed temperature gas chromatog...
食品接触材料DD CENTS 13130-22:2005 Materials and articles in contact with foodstuffs — Plastics substances subject to limitation —Part 22 Determination of ethylene oxide and propylene oxide in plastics.pdf,DRAFT FOR DEVELOPMENT DD CEN/TS 13130-22:2005
A new strain of S. montanus (ATCC-BAA-2725) with unique carbon source utilization, especially for propylene glycol (a typical de-icing compound), was found to be a consistent member of the biofilm formed in a stream contaminated with organic de-icing agents from Milwaukee Mitchell International...
The highly polar favipiravir molecules would be incorporated into the hydrophilic core of the formed reverse micelle to be extracted by the non-polar organic extractant. The method was validated according to the FDA bioanalytical method guidelines. The developed method was found linear in the ...
Encapsulatedflavouring Surfaceflavouring SPME GC abstract Asolid-phasemicroextractionprocedurefollowedbyanalysisbygaschromatographyisproposedto determinesurfaceflavouringcontentinencapsulatedflavouring.Themethodshowedagoodselectivity, aswellasgoodintradayandinterdayprecision,CVs<4%inbothcases.Thecalibrationcurve...
initiated 2 years after its publication by the European organization so that a decision can be taken on its status at the end of its 3-year life. Notification of the start of the review period will be made in an announcement in the appropriate issue of Update Standards. According to the ...