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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.
Adding Mass Detection to Synthetic Oligonucleotide Analyses with the ACQUITY QDa Detector
April 6th 2016The objective of this application note is to demonstrate that the ACQUITY QDa Detector provides a simple and cost-effective solution for detecting oligonucleotides across a wide molecular weight range and can be readily integrated into existing UV-based workflows.
Looking for What We Know About and What We Don’t in Drinking Water
April 1st 2016This summary will explore the latest developments in the analysis of contaminants of emerging concern in drinking water. We will explore the requirements and results from the EPA’s Unregulated Contaminant Monitoring Rule 3 program for Perfluorinated organics, and hormones. After a brief overview of the EPA analytical techniques, we’ll take a look at new technology and ask how it compares for both and if it can find compounds we didn’t even know were there.
Increasing Efficiency of Method Validation
March 30th 2016The validation process of an analytical method is a complex and demanding activity, consisting of many time-consuming steps. Empower® 3 Method Validation Manager (MVM) automates the method validation workflow within a single software environment, reducing time and ensuring conformance to the validation requirements and acceptance criteria defined in the protocol. This application note demonstrates validation of a UPLC® method for metoclopramide HCl and related substances using Empower 3 MVM.
Develop Methods Faster and Collect Information Rich Data with RADAR
March 29th 2016Uncertainty in chromatographic method development and quantitative experiments often arises. RADAR can detect uncertainty, discover co-eluting compounds, collect full scan MS data and monitor the background matrix, enabling fast method development.