category-autoanalyzer
- And the Science behind It Years ago when I started working with autoanalyzers, glass was the most common material used to transport and mix fluids and I dutifully learned the art of working with very expensive and easily snapped fragile mixing coils and glass fittings. At the time I was told that glass had [...]
Containers Should Be Rinsed After Each Use From a service and support point of view, we often have difficulty getting operators to see that, on a daily basis, sometimes the small things can be as important as the big things. Operators easily see the value in replacing pump tubes, changing the lamp in the detector [...]
ASTM D7511-09 Standard Test Method for Total Cyanide by Segmented Flow Injection Analysis, In-Line Ultraviolet Digestion and Amperometric Detection This is a new standard test method that was developed by ASTM Committee D19 on Water to determine the concentration of total cyanide in drinking and surface waters, domestic wastewater, and industrial wastewater. Cyanide ion (CN-), hydrogen [...]
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 [...]
There are several different types of materials used for mixing manifold cartridges in autoanalyzers. One of the two most common manifold materials utilized is clear acrylic which is often considered optimal due to its transparent quality giving greater visibility to the chemical reagents flowing inside the mixing tees. The other is polysulfone, a significantly darker [...]
Sometimes the small things are just as important as the major components on an autoanalyzer. When issues arise we focus on the pump tubes, the peristaltic pump or even the reagents themselves, but often operators overlook their containers. Containers hold, arguably, the most important part of the system; reagents, and are critical to the successful [...]
Contacting a Service Technician First Can Save Money, Decrease Downtime and Increase Productivity. Recently a client contacted us about needing another cadmium coil for nitrate analysis on their autoanalyzer. After checking their order history, we were puzzled to find that their cadmium coil was only a few months old. Digging deeper, we found that, oddly, [...]
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 [...]
Flanged Fittings are Better Than Ferrules for Alpkem, Perstorp or OI Analytical Autoanalyzers Autoanalyzers vary by manufacturer on what type of fittings they use to secure tubing into the reaction manifold as well as the other various fittings on the system. Some just use sleeves where the tubing simply slides over a nipple or some [...]
Teflon Tubing Is a Powerful Tool for All Types of Laboratory Analysis Using an Autoanalyzer When Perstorp bought Alpkem way back when, they radically changed the platform and created the Expanded Range (ER) detector which to this day is arguably the best autoanalyzer detector ever made. In combination, they added their type of tubing and [...]
