Agilent Manuals

A rapid analytical technique of laser ablation inductively coupled plasma mass spectrometry was developed to measure trace element constituents in corals and hard sponges. This technique is illustrated by measuring B, Mg, Ca, Mn, Zn, Sr, Ba and U in a Porites coral collected from the Great Barrier Reef, Australia. The accuracy of laser ablation inductively coupled plasma mass spec- trometry for the measurement of Sr/Ca and Ba/Ca in corals by comparison with solution isotope dilution induc- tively coupled plasma mass spectrometry is discussed. We demonstrate the significance of the Sr/Ca ratio by correlation with in situ sea surface temperature data to show that Sr/Ca in corals provides a means to retrospec- tively measure sea surface temperature prior to available instrumental records. Coral Ba/Ca ratios as an indicator of riverine sediment input during times of runoff into the Great Barrier Reef are also examined.

This document describes the application of the Agilent Technologies 6890/5973 inert gas chromatography/mass selective detector system in semivolatiles analysis. The system is designed for fast analysis while minimizing the impact of active compounds and maintaining linearity and sensitivity.

Agilent Technologies' fast GC/MSD method can significantly speed up the screening of PCB congeners

This article discusses the speciation of organic compounds using a newly developed experimental GC-ICP-MS interface. It focuses on the characteristics and applications of organotin compounds.

Ambient Headspace GC and GC-MSD analysis of non-polar volatiles in water is described. Ambient Headspace is an ideal method for prescreening samples prior to purge and trap (P&T) analysis. Instrumenta- tion is protected from high level conta- minants and rework is reduced. The nature of the technique also makes it attractive for high sample volume appli- cations, such as monitoring of process water in food/beverage manufacturing.

This document describes method parameters specific for the Agilent system equipped with DAD detection and computer control through Agilent ChemStation.

This article presents a novel method for the indirect determination of fluoride traces in natural waters using ion chromatography and ICP-MS detection. The method offers significant advantages in terms of speed, high sensitivity, and simultaneous measurement of multiple elements.

The document is an application introduction, mainly describing the features and characteristics of the product.

This document describes a method for determining 61 volatile organic compounds (VOCs) using gas chromatography-mass spectrometry (GC-MS). The method uses a purge and trap (P&T) concentrator, a gas chromatograph (GC), and a mass spectrometer (MS), and does not require the use of cryofocusing. Tables 1 and 2 list the P&T and GC-MS conditions, which detail the instrument settings. The method development for analyzing 524.2 analytes was refined by members of the GC-MS Volatile Organics Analysis (VOA) group at Quanterra in Tampa, Florida.

This Application Brief describes a method for sampling formaldehyde and acetaldehyde in air using a DNPH-impregnated silica gel cartridge and analyzing them by HPLC. The method has a limit of detection of 0.25 μg/m3 and 0.35 μg/m3.

This paper introduces a method for analyzing dioxins using Agilent benchtop mass spectrometers, which has high sensitivity and cost-effectiveness.

This document describes the application of Agilent 6890 series Micro-ECD in the detection of organochlorine pesticides in various matrices in the environment and validates its performance in linear working range, sensitivity, stability and resistance to contamination.

This document describes the HPLC analysis method of bendiocarb and metabolite

This article describes a method for analyzing 1,2-ethylene dibromide (EDB) and 1,2-dibromo-3-chloropropane (DBCP) in water using the Agilent 6890 series gas chromatograph and Agilent 6890 micro-electron capture detector. The method follows EPA Method 504, using microextraction to extract the analytes from the sample, and then analyzing the extract by dual-column gas chromatography with dual micro-electron capture detectors (Agilent 6890 micro-ECDs). The micro-ECD provides significantly better stability, sensitivity, and linearity than the classical ECD. The relative standard deviation (% RSD) for the entire method is less than 7% over a concentration range greater than two orders of magnitude, with method detection limits of 0.003 mmmmg/L or lower.

This application note discusses the uses of the FPD in gas chromatography, demonstrates the linearity and method detection limits (MDL) of the 6890 Series GC with an FPD, and gives examples of analyses of organophosphorus pesticides using the 6890 GC with an FPD.