Application Notes: GC
Extraction Method for Pesticides in Poultry Fat
Using a targeted solid phase extraction (SPE) method and GC–ECD analysis, chlorinated pesticides are extracted from poultry fat resulting in a method that decreases the amount of labor and reagents when compared to the USDA-FSIS CHC2 method.
Extraction Method for Pesticides in Poultry Fat
Using a targeted solid phase extraction (SPE) method and GC–ECD analysis, chlorinated pesticides are extracted from poultry fat resulting in a method that decreases the amount of labor and reagents when compared to the USDA-FSIS CHC2 method.
Extraction of Cannabinoids from Brownies
April 7th 2016Cannabinoids are successfully extracted from a complex brownie matrix using the QuEChERS sample preparation technique, significantly reducing the presence of matrix interferences. The resulting clean samples are analyzed by GC–MS using a specialized deactivated GC column to provide heightened peaks for the cannabinoid compounds.
Improved Analysis of EPA Method 625
April 7th 2016EPA Method 625 is greatly simplified by using solid phase extraction (SPE) as an alternative to traditional liquid-liquid extraction (LLE). Using this SPE technique, paired with a sensitive GC–MS analysis, increases throughput and data quality, while decreasing manual labor and solvent usage.
Extraction of Cannabinoids from Brownies
April 7th 2016Cannabinoids are successfully extracted from a complex brownie matrix using the QuEChERS sample preparation technique, significantly reducing the presence of matrix interferences. The resulting clean samples are analyzed by GC–MS using a specialized deactivated GC column to provide heightened peaks for the cannabinoid compounds.
Improved Analysis of EPA Method 625
April 7th 2016EPA Method 625 is greatly simplified by using solid phase extraction (SPE) as an alternative to traditional liquid-liquid extraction (LLE). Using this SPE technique, paired with a sensitive GC–MS analysis, increases throughput and data quality, while decreasing manual labor and solvent usage.
Improvements in your LC–MS-MS Analysis
April 7th 2016Phospholipid removal proves to yield superior results as compared to a traditional protein precipitation step when analyzing a complex plasma matrix via LC–MS-MS. The results displayed a decrease in ion suppression, increased analyte sensitivity, and an improvement in column lifetime.
Improvements in your LC–MS-MS Analysis
April 7th 2016Phospholipid removal proves to yield superior results as compared to a traditional protein precipitation step when analyzing a complex plasma matrix via LC–MS-MS. The results displayed a decrease in ion suppression, increased analyte sensitivity, and an improvement in column lifetime.
Drug Analysis from Oral Fluids
April 7th 2016Using oral fluid as the matrix, a viable and simple solid phase extraction method for a wide range of drugs is developed. Several oral fluid collection devices were evaluated to determine the effectiveness of the cleanup procedure, ultimately confirming that the method is both robust and widely applicable.
Drug Analysis from Oral Fluids
April 7th 2016Using oral fluid as the matrix, a viable and simple solid phase extraction method for a wide range of drugs is developed. Several oral fluid collection devices were evaluated to determine the effectiveness of the cleanup procedure, ultimately confirming that the method is both robust and widely applicable.
Drug Screening from Whole Blood
April 7th 2016A suite of unknown drug compounds from whole blood are analyzed by LC–MS-MS, requiring the need for an effective yet nonspecific cleanup technique. The resulting method demonstrates a simple and fast sample preparation procedure that is suitable for screening many compounds.
Drug Screening from Whole Blood
April 7th 2016A suite of unknown drug compounds from whole blood are analyzed by LC–MS-MS, requiring the need for an effective yet nonspecific cleanup technique. The resulting method demonstrates a simple and fast sample preparation procedure that is suitable for screening many compounds.
AFFF-MALS-RI for Determining the Mass and Size Distributions of Amylose and Amylopectins in Starch
February 19th 2016Starch is used for a variety of industrial and nu¬tritional purposes. Its functional properties are influenced by the ratio and molar masses of its mac¬romolecular constituents, which vary with source, crop year, and climate. Starch contains large homopolymers of amylose (AMY) and amylopectin (AMP).
Determination of Fatty Acid Methyl Esters (FAMEs) in Salmon Oil Using Automated Sample Preparation
May 1st 2012The automated derivatization of fatty acids (FAs) was performed with the Agilent 7696A Sample Prep WorkBench. Since free fatty acids show tailing in gas chromatography, transformation of fatty acids into fatty acid methyl esters (FAMEs) is widely used.