Agilent Manuals

Analysis of amino acids in beer using HPLC with online derivatization.

This application note describes a method for analyzing pesticides at the trace level using large-volume injection (LVI) with the Agilent programmable temperature vaporizing (PTV) inlet. With LVI, the detection limit of gas chromatography systems can be improved by one to two orders of magnitude over standard methods that require 1- or 2-microliter injections. An Agilent 6890 Series gas chromatograph (GC), configured with a PTV inlet, an Agilent 6890 Series automatic liquid sampler (ALS), and an Agilent 5973 mass selective detector (MSD), was used for the analysis of pesticides in standards and several food extracts. By making 100-microliter injections, several pesticides could be identified by scanning gas chromatography/mass spectrometry (GC/MS) at the 100 ppt (100 ng/L) level. The PTV inlet tolerated dirty food extracts very well; more than 1,500 microliters of such samples were injected into a single PTV liner. This application note includes recommendations for performing LVI using the PTV/6890/5973 GC/MSD system.

This paper introduces a HPLC method based on reversed-phase chromatography and UV-visible diode-array detection for the determination of tetracyclines in meat. The method is simple, sensitive, and suitable for the large-scale determination of samples.

A Method Used to Screen for 567 Pesticides and Suspected Endocrine Disrupters

Triglycerides are the major components in edible oils. This note describes a method for analyzing intact triglycerides by LC/MS and the type of information available.

This document introduces the method for detecting fumonisins using Agilent 1100 Series LC/MSD without derivatization.

The document describes the features and characteristics of a product, including detailed product specifications and function descriptions.

The document introduces a method for detecting toxins using capillary electrophoresis

This document introduces a rapid method for monitoring carbohydrates in food using capillary electrophoresis with indirect UV detection. The method is simple and stable and is suitable for application in routine laboratories.

This document describes the advantages of using MSn analysis in an ion trap mass spectrometer for multiple isolation and fragmentation stages, as well as its application in the structural determination of ginsenosides from a ginseng root extract.

Agilent Technologies' new fast GC/MSD method can significantly speed up pesticide screening

This application note describes the application of ion trap LC/MS/MS to determine pesticide and herbicide contamination in food samples. This method uses ion trap LC/MS/MS to confirm, identify and quantify low levels of carbaryl in foods. This is mainly due to the high sensitivity and specificity of MS/MS with the ion trap.

This document introduces an LC/MS method for monitoring several coumarin rodenticides in complex matrices.