SFA
Flow Analyzer System Restoration and Innovation Have you ever found yourself staring at your flow analyzer wishing, that like a vintage automobile, it could be fully restored? Though SFA/FIA technology has actually changed very little over the last few decades, it is usually more cost effective to restore your existing equipment than to spend more [...]
Used to help liquids flow through autoanalyzer tubing more easily and to help facilitate mixing, surfactant is a necessity for flow analyzers. Surfactant has been used since autoanalyzers were constructed and comes in many varieties, but I prefer basic Brij-35 and Dowfax 2A1. These two, tried and true surfactants were the mainstay for nearly all [...]
In this article, I am going to focus on flow cell maintenance. Keeping an older autoanalyzer running can save considerable amount of money for a lab, but this does not mean that its operation is free. If a lab takes a little time and money to keep up a few essential parts on an autoanalyzer [...]
Gas diffusion modules are used in autoanalyzers whether segmented flow analysis (SFA), sometimes referred to as continuous flow analysis (CFA), or flow injection analysis (FIA). The purpose of the gas diffusion module is to function as an in-line cleanup eliminating particulates, potential ionic interferences and chemical complexes. The target analyte permeates through the membrane into a [...]
The peristaltic pump is a very important component in the proper operation of an autoanalyzer instrument. If it is not functioning properly, it’s possible to have problems with reproducibility, accuracy, and prematurely worn pump tubing. These signs of a pump problem might be observed as poor peak shape, split peaks, tailing peaks, surging, and inconsistent [...]
