Speed & Accuracy in Water Analysis   Water & Wastes Digest October 2006   By Don Harrington
Improving lab efficiencies at a small municipal treatment system

Double Option   Water & Wastes Digest January 2004   John Volbeda
There are two primary technology options available for continuous dissolved oxygen measurement in aeration basins--bare- or open-electrode sensors, and membrane sensors. Both options are viable and offer plants specific benefits. The key is for plants to select which sensor will work best for their application and production workflow needs.

Straight from the Box   Water & Wastes Digest November 2003   Paul Hersch
There are but two U.S. EPA approved, in-field methods for determining total chlorine residual (TCR). While both methods are cost-effective, user-friendly and provide assured, accurate measurements on digital readouts, the difference between the two is that one uses colorimetry while the other incorporates iodometric electrode (IE) technology.

E. Coli   Water Quality Products May 2003   Danielle Duclos
This article provides a general overview of E. coli and drinking water as well as current and emerging monitoring and decontamination technologies.
PDF Version

Wet Chemical TOC Analysis   Water & Wastes Digest October 2002   Karnel R. Walker, Dan Davis, and Robert H. Clifford, Ph.D.
The goal of this article is to demonstrate that the Shimadzu TOC-VW can effectively oxidize the Humic Acid (HA) matrix at high accuracy and precision levels never before witnessed by the wet chemical TOC community. The Shimadzu TOC-VW Carbon analyzer is the only TOC on the market that uses three oxidation techniques of UV light, heat, and persulfate in a single analyzer.1