|EMD Millipore pure and ultrapure water systems meet marine biologists’ high quality standards|
|Elix® Advantage System|
|RO/EDI: The Preferred Water Purification Technology for Food and Beverage Laboratories|
|Comparison of the environmental impact of an Elix® 3 water purification system with a distillation apparatus (EMD)|
|High Purity Water for Inorganic Analysis|
|Reference overview||Pub Med ID|
|The Importance of Water Quality in the Histology Laboratory |
E Riché, E Macrea, W Lange, S Mabic
HistoLogic (2008) XLI(2), 21-26 2008
Water is ubiquitous in histology laboratories. Not only is it the main component in many of the reagents prepared in the laboratory (buffers, stains, rinsing solutions), but it is also used in tissue flotation baths, tissue processors, water baths, etc. However, it is often taken for granted, and its potential impact on experimental outcomes overlooked. While it is well known that purified water should be used in most cases, various procedures refer to the use of “deionized,”“distilled,” and “doubledistilled” water, making it confusing as to which type of water should be used. In addition, bacterial contamination of the water should be prevented, which may be difficult, even when using excellent laboratory practices. In the present study, water produced by a water purification system and combined with reverse osmosis, ion exchange resins, electrodeionization, and a germicidal ultraviolet (UV) lamp was used. The resulting purified water was used to prepare reagents, as well as in water baths and/or rinsing solutions for hematoxylin and eosin (H&E) staining and silver staining. The results obtained were all satisfactory, including the silver staining, which is known for being very sensitive to water quality. In conclusion, water purified with a combination of reverse osmosis, ion exchange, and electrodeionization is suitable for a wide array of histology experiments.Full Text Article
|The Importance of Water Quality in the Histology Laboratory|
|Water quality in patient testing |
J. Long and S. Mabic
Clinical Lab Products (2007) April, 22-23 2007
Sophisticated diagnostic equipment is designed to improve quality, increase throughput, and manage continued labor shortages. All diagnostic manufacturers can provide the end user with software specifications that simplify automatic sampling and predilution; ensure workflow efficiency with high-speed throughput and performance; provide accuracy in testing with precision optical systems; deliver real-time access and alerts for patient and QC packages; and offer mechanical alerts to any possible instrumentation failures. Additionally, troubleshooting instrumentation, even with the above solution, creates unique challenges for medical technologists. Instrumentation can alert, flag, and warn that something is problematic, but it takes an experienced medical technologist to determine the root cause. One parameter, even though utilized by each end user on any kind of diagnostic instrument, has not been considered: water. Used in a variety of assays, water is a major reagent in clinical chemistry and immunoassay testing. Analytical factors linked to water quality need to be controlled and optimized to reduce the number of test failures. The water quality delivered to the analyzer is as important as any other reagent. Control of bacteria and its by-products with Elix technology and Biopak filters provides the highest quality water to be used in assays sensitive to these contaminants. Control of the water quality eliminates frequent decontamination. This optimizes analyzer performance and reduces downtime that can be costly to the customer and analyzer manufacturer.
|Water quality in patient testing|
|Maintaining water quality in clinical chemistry |
Advance for Medical Laboratory Professionals (2007), May, 83 2006
Water is a major component used in the reactions and testing methods and should be a constant focus. Water quality for clinical testing is essential for complying with the norms, in particular Clinical and Laboratory Standards Institute (CLSI), and for performing assays using analyzers that require purified water. The CLSI guideline was written as a suggestion for ensuring a minimum water quality, which is supported by recommendations made for levels of a few contaminants and the basic water purity to conduct clinical chemistry assays safely.
|Maintaining water quality in clinical chemistry|
|Ultrapure Water Blank for Boron Trace Analysis |
J. Anal. At. Spectrom.
J. Anal. At. Spectrom. 15 1395-1399 2000
Weakly charged elements, or elements that are not well dissociated in water, are not removed efficiently by conventional water-purfication technologies. In the production of high-purity water, silica and boron are generally the first ions to breakthrough into purfied water when the ion-exchange resin approaches depletion. In this study, the behavior of these two elements was studied through various steps in a water-purification chain. An optimized system configuration is proposed that combines reverse osmosis and electrodeionization technologies in the pre-treatment phase, and results in the efficient removal of boron. These initial purification steps produce high-resistivity water, presenting a low ionic challenge to ultrapure polishing resins. In addition, a specific chelating adsorbent enhances the retention capacity of boron. Typical values achieved for the most important parameters assessed while producing ultrapure water are described.