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 [...]
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 [...]
Docket ID No. OW-2003-0070 Comments Related to the Proposed Cyanide Determination Methods Federal Register / Vol. 69, No. 66 / April 6, 2004 / Proposed Rules, pp. 18166 – 18226 Prepared by: Emil Milosavljevic, Ph.D. and Ljiljana Solujic, Ph.D. Distillation-based methods for determination of operationally defined cyanide have very limited application because of the serious interferences from the species likely [...]
By now, most of us have heard that we shouldn’t put plastic in the microwave, though many still do it without a thought. A quick search on the internet for phthalates turns up key phrases like endocrine disrupters and insulin resistance, baby bottles, water bottles and so on that all seem to be leading us [...]
We’re excited to announce the launch of our newly updated EZkem blog on our blog! We encourage you to bookmark our page or subscribe to our RSS feed. We are constantly dialoging with our clients about parts, repairs, reconditioned system builds and any questions they have to keep their lab running smoothly. Through our blog [...]
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 [...]
As solutions flow through an autoanalyzer system the debubbler is a key component in providing the opportunity to evaluate the condition of the reagents and ultimately the sample. It’s through the debubbler that we can see if the bubble patterns are correct, if there is a block in the cartridge causing surging, how well the [...]
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 [...]
