FIA

Scrap It or Save It? Restore Your Flow Analyzer to Factory Specifications

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 [...]

2015-07-11T19:27:51-07:00

How to Test for Free Cyanide Utilizing Gas Diffusion

ASTM D7237 Standard Test Method for Free Cyanide with Flow Injection Analysis (FIA) Utilizing Gas Diffusion Separation and Amperometric Detection This is a new standard test method that was developed by ASTM Committee D19 to determine the concentration of free cyanide in an aqueous wastewater or effluents. The method detects free cyanide (HCN and CN-) and a [...]

2017-09-27T12:08:20-07:00

Utilizing Flow Injection Analysis and Gas Diffusion

ASTM D6888-09 Standard Test Method for Available Cyanide with Ligand Displacement and Flow Injection Analysis (FIA) Utilizing Gas Diffusion Separation and Amperometric Detection ASTM Committee D19 on Water has recently revised this standard. This method is used to determine the concentration of available inorganic cyanide in an aqueous wastewater or effluent. The method detects free [...]

2017-09-27T12:08:21-07:00

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 [...]

2017-09-27T12:08:22-07:00

A Short History of the Gas Diffusion Module

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 [...]

2017-09-27T12:08:22-07:00

Poor Reproducibility? 3 Reasons Your Peristaltic Pump Could Be The Problem!

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 [...]

2017-09-27T12:08:23-07:00
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