Agilent Manuals

This document describes some of the lessons learned from using a flow modulator to modulate methane and points out some common erroneous assumptions, such as that stationary phase bleed is a good indicator of hold-up time. When using this approach to perform fundamental retention studies, one cannot escape the fundamental pitfalls of capillary chromatography. Loss of He through fused-silica at high temperatures and low flows can cause significant errors.

This document introduces the market situation of ethanol fuels made from renewable biomass worldwide, as well as the key feedstock and specifications requirements for ethanol fuels. By using multidimensional capillary column GC (MDGC) system, multiple individual measurements can be combined into a single run, greatly reducing the analysis time.

Introduction to Easy SamplePrep Add-On Software, which provides simple and easy-to-use automated sample preparation for 7693 ALS and Tray, including derivatization, internal standard addition, serial dilution, heating, cooling, mixing, etc.

Introduces the method of using Agilent PLgel 10 µm MIXED-B columns to analyze fluoropolymers

This document introduces the effective method for analyzing butyl rubber with Agilent PLgel 10 µm MIXED-B columns.

Agilent PLgel 5 µm MIXED-C Columns are designed for rapid polymer analysis. With its linear calibration up to 2 million MW, this is the column of choice for highest resolution and accuracy in molecular weight distribution analyses.

This document provides a technical overview of Agilent PLgel 5 µm MIXED-C Columns GPC calibrations and hydrodynamic volume. When calibrating the same column with standards of different chemical composition, the shape of the calibration should be similar. The plots will differ according to the hydrodynamic volume of each polymer in the element used.

The PLgel 5 µm MIXED-C columns are designed for rapid polymer analysis and are ideal for comparing batches of polycarbonate. With its linear calibration up to 2 million MW, PLgel 5 µm MIXED-C is the column of choice for highest resolution and accuracy in molecular weight distribution analyses.

This document introduces the technical overview of Agilent PLgel 5 µm MIXED-C columns, including the adsorption phenomena in organic GPC separations and how to minimize this impact by modifying the eluent polarity.

This document describes the use of Varian CP-4900 Micro GC and provides an example of how to use the EDU-Varian Sample Concentrator to concentrate samples to improve the detection limit.

This document introduces a method for analyzing polycarbonates using Agilent PLgel 5 µm MiniMIX-C columns that can reduce the amount of solvent used.

This document describes a method for analyzing BTEX gas samples using the Varian 490-GC Micro GC. The method uses the EDU Sample Concentrator to concentrate the sample and then injects the sample into the GC for separation and analysis. Using this method, enrichment factors of up to 230 times can be achieved.

This file introduces the advantages of Varian nano-Electrospray Ionization Source (nESI), which can be connected to all current Varian LC/MS systems. nESI can improve the ionization efficiency of the sample, make the droplets in the sample solution smaller, reduce the contribution of solvent to the background noise, and thus improve the sensitivity. nESI can also be combined with 75-micron diameter columns and nano-flow LC pumps to increase sample concentration and sensitivity. nESI is suitable for low sample volume applications such as proteomics research because it consumes less sample.

The document describes the process of seamlessly transferring validated methods from the Agilent 1200 Series LC system to the Agilent 1220 and 1260 Infinity LC systems. The method used USP/NF 23 method and the system suitability test developed on an Agilent 1200 Series LC system was used to test whether the Agilent 1220 and Agilent 1260 Infinity LC systems met the acceptance criteria. The chromatographic conditions of the system suitability test transferred to the Agilent 1260 and Agilent 1220 Infinity LC systems without changes. The results obtained were consistent with the results typically obtained on the Agilent 1200 Series LC system.