Industrial

This document describes the operating procedures for using ammonia as a reagent gas for chemical ionization, as well as the characteristics and hardware requirements of ammonia. Ammonia is widely used for both positive and negative chemical ionization.

This article introduces the improved response for active compounds using the Direct Connect Liners technique. The Direct Connect Liners is a commonly used inlet for trace compound analysis and splitless injection technique. This technique is rugged, robust, and sensitive as a large portion of the sample is delivered to the column. The key to the technique is vaporization in the inlet, facilitated by the inlet liner. Liners are typically made of straight, deactivated borosilicate glass with a tapered bottom to prevent contact with the metal baseplate of the inlet. Liners with tapers at the bottom and the top are also popular as they provide better containment of the injected sample. This is important for difficult or active compounds that tend to be lost or irreversibly adsorbed in the inlet. These compounds are often highly polar and are typically acidic or basic compounds. In theory, the response factor should be constant and independent of the amount injected. Typically, the response factor (detector signal per weight of compound injected) is smaller at lower concentrations than at higher concentrations. The lowered response is more apparent at small concentrations.

This document describes the enhanced injection volume capabilities of the Agilent 1100 Series autosamplers, including the multi-draw upgrade kit, the 900-µl injection upgrade kit, a combination of both kits, and a 5000-µl seat capillary.

The document introduces Agilent Technologies' Plasma Chrom software, which integrates chromatographic separation with inductively coupled plasma mass spectrometry detection, enabling routine speciation measurement. The software, combined with the Agilent 7500 Series ICP-MS, allows for fully automated, real-time data analysis using chromatography ICP-MS.

This technical note describes the operational qualification and performance verification (OQ/PV) process for UV-visible spectrophotometers.

LP2283F140LC01 switch specifications: 100mA @ 30VDC, electrical life 100,000 cycles, contact resistance < 50 mΩ initial, actuation force 140 +/- 50gF, actuation travel 1.0 mm to lock 1.8 mm full travel, dielectric strength 1000Vrms min, insulation resistance > 100MΩ min, operating temperature -40°C to 85°C, storage temperature -40°C to 85°C.

This document presents the technical details of the Agilent Capillary Electrophoresis System, including high sensitivity diode-array detection, improved quantitative analysis, full automation, the capability to perform all modes of capillary electroseparation, and the potential for low-cost upgrade for CE-MS interfacing. The instrument is controlled through the Agilent CE ChemStation, which offers an intuitive graphical user interface and advanced operational features. It is designed to meet the needs of routine analysis as well as cutting-edge research.

This document describes the method and advantages of using diode-array detection in capillary electrophoresis. By using a diode-array detector, high spectral fidelity, peak purity, and library searching capabilities can be achieved. The detector is characterized by its ability to provide accurate detection results, which contribute to the accuracy and reliability of capillary electrophoresis analysis.

This document describes the method of using GC/MS for sample screening and the importance of using the RTL mass spectral database for confirmation. It also provides detailed information on when and how to lock methods.

This technical note demonstrates the performance of amino acids analysis on the Agilent 1100 Series modules and systems for LC. Detailed information regarding instrumental and chromatographic conditions and performance are given. The precision for retention times over 10 runs is as low as 0.2 % RSD, and the RSD of areas is between 0.6 and 5 %. Since the introduction of automated amino acid analysis on the HP 1090 Series HPLC system using a two step precolumn derivatization, this technique has become a well accepted and routine method for the analysis of primary and secondary amino acids.

The Agilent 220 micro plate sampler (MPS) is an essential part of Agilent's system for combinatorial chemistry and high-throughput HPLC analysis. The value of the sampler is in its flexibility. It uses different sample devices and combines high sample capacity, high speed and sampling/fractionation capability in one system. The sampler, together with the Agilent 1100 Series HPLC modules and the Agilent 1100 Series mass selective detector (MSD), makes up a complete system that fulfills the requirements of combinatorial chemistry and high-throughput analysis with its robustness, ruggedness, sensitivity, selectivity and speed. The seamlessly integrated system plus the single software platform—complete with diode array and mass spectrome- try detectors—simplify system setup, operation and management of large amounts of data.

Optimizing the Agilent high-throughput analysis system for high performance and precision

This document introduces the performance of Agilent Technologies' 7500s ICP-MS in the determination of ultratrace levels of metals in HF and H2O2.

The document introduces how to optimize the Agilent 1100 Series system for high throughput, including using fast gradients, short columns and high flow rates