Meeting Low Sulfur Requirements in Fuel - NEW!
Sulfur in diesel fuel is often measured by gas chromatography. Inductively coupled plasma optical emission (ICP-OES) can provide a rapid analysis with little sample preparation. In addition, other metals can be measured at the same time, increasing productivity. This talk will focus on sulfur analysis by ICP-OES and the resulting figures of merit for the analysis to allow comparison with gas chromatography.
Presenter: Daniel Jones and Lee Davidowski, Sr Product Specialists, PerkinElmer.
Duration: 32 minutes
Format: Windows Media Player
Speeding the Analysis of TBN in Lubricating Oils using FTIR Spectroscopy - NEW!
Total Base Number (TBN) has been used for many years to determine the condition of used oil. It provides an indication of the remaining potential to neutralize acidic substances to which the oil may be exposed in the course of engine operation. The ASTM method often used is an older potentiometric titration method. Newer methods, such as FTIR coupled with chemometric models can provide a rapid method yielding more reliable information. This talk will summarize the state of the art for TBN analysis.
Presenter: David Wooton, Consultant.
Duration: 47 minutes
Format: Windows Media Player
Optimizing the Operation of an ICP-OES
This presentation starts with ICP theory to give the user a better understanding of what is going on in the ICP plasma source. This information is important to understand before one tries to optimize an ICP system. The sample introduction system and the purpose of each component is described. Instruction is then given to optimize the ICP source and also list some performance test to ensure the unit is running properly. The presentation closes with a section on trouble shooting including how to maintain the individual system components. (1h 9m)
ICP Method Development and Internal Standard Usage
This is a comprehensive look at how to do ICP method development. It describes method parameter entry including integration times, peak processing, calibration and a detailed explanation of how to do background correction. Internal standardization is also addressed in detail including the “why” and the “how to” of using internal standards. Advanced correction techniques for handling matrix and ionization effects are also discussed. This presentation closes with a section of how to do results verification including spikes, duplicates and dilutions. (1h 3m)
Selecting the Right Nebulizer
Most types of nebulizers and spray chambers are addressed with a focus on set up and which set up to use for a variety of application. System recommendations are made for normal, high TDS, low level, and organic applications. (0h 22m)
Improving Results with Interference Correction Techniques (including Inter-Element Correction and Multi-Component Spectral Fitting)
This is web cast is probably the most advanced one of the series. It assumes that users are very familiar with ICP and most of the information presented in the previous web casts. The main focus of this presentation is to describe interference correction schemes and how to set up and use both IEC and MSF correction. (0h 45m)