Presentation Profile
How to Analyze Difficult Samples by ICP-OES Reliably and with High Productivity
Currently Scheduled: 10/16/2019 - 8:45 AM - 9:45 AM
Room: Daffodil Room
Main Author
Dr. Sergei Leikin - Texas Scientific Products
Abstract:
ICP-OES analysis of sample matrices having a complex chemical nature can be very challenging. The correct selection of the sample introduction system - from peristaltic pump tubing to the Nebulizer-Spray Chamber combination and torch configuration – is especially critical. A reliable and consistent handling of the most difficult sample types in a large degree depends on the right choice of these critical components. A detailed approach to selection of each part of the sample introduction system and it’s analytical impact on ICP-OES operation will be presented: instrument running parameters (gas flows, plasma power, sample uptake rate), it’s influence and relation to the Nebulizer type; different reasons of clogging the Nebulizer - one of the most frustrating events in daily routine of any ICP operator; practical, proven ways to prevent the blockages rather than to deal and address them using expensive tools An approach to reliable and productive ICP-OES operation will be illustrated by a few practical examples of how to handle challenging matrices with large amount of undissolved particulate content, for example: oils and greases samples containing high amount of salt or total dissolved solids. Users are encouraged to bring up for an open interactive discussion their own challenges in running samples on ICP-OES.
