Agilent Manuals

This is an application note on the HPLC analysis of St John's Wort tablets. The herb contains complex chemicals, including hypericin and hyperforin. This article discusses the uses of the product, its chemical components, and the importance of monitoring and characterization.

This Application Note describes a method for determination of aminoglycoside antibiotics by HPLC with ELSD.

This is an application note about the separation of ginseng root constituents by HPLC.

This document describes the application of Varian's HPLC (High Performance Liquid Chromatography) products in the determination of glutamic acid. Glutamic acid is a common natural amino acid that is critical for cell function and is one of the building blocks in protein synthesis. The document discusses the importance of glutamic acid in protein synthesis and brain function, as well as the role of glutamic acid salt (MSG) in human taste perception.

This article introduces the method of HPLC detection of caffeine using a Varian ELSD detector. A gradient HPLC method was used to analyze caffeine at low concentrations to determine the on-column limit of detection (LOD).

This application note describes a method for the effective HPLC determination of fentanyl using an ELSD detector.

This paper describes maximum sensitivity in the analysis of parabens using low temperature ELSD.

This document describes the application of GC/MS analysis of brominated diphenylethers and brominated biphenyls (flame retardants) following ROHS guideline. It includes information on the technique, instrument setup, sample preparation, and peak identification.

This document is an application note on the analysis of ylang oil using VF-WAXms GC columns. The components and characteristics of ylang oil samples are analyzed and identified.

This document describes the method of fast fingerprint analysis of perfumes using Agilent J&W FactorFour VF-WAXms high efficiency GC columns. The column shows excellent selectivity for the volatiles present in perfumes and allows significant reduction in analysis time without compromising on resolution of separation.

This application note describes a method using the Varian 220-MS ion trap mass spectrometer (Figure 2) to determine melamine and its analogs qualitatively and quantitatively based on the framework of the original FDA method.

This note provides a basic overview of 25 key regulated compounds rapidly set up on the 210-MS Ion Trap GC/MS system for the analysis of water samples by EPA Method 525.2.

This document is an application note about the use of the Varian 210-MS ion trap mass spectrometer and V:Results™ GC/MS software for gas chromatography mass spectrometry analysis. The method is applicable for the determination of volatile organic compounds in various solid waste samples, including different water content samples such as air sampling trapping media, ground and surface water, aqueous sludges, caustic liquors, waste solvents, oily wastes, mousses, tars, fibrous wastes, polymeric emulsions, filter cakes, spent carbons, spent catalysts, soils, and sediments.

This article describes the method for analyzing seven nitrosamines in the MS/MS configuration using the 220-MS Ion Trap GC/MS system and V:Results GC/MS software.

This application note describes the interference-free analysis of 16 PAHs listed in EPA 610 using the J&W Select PAH GC column.