From Toilet to Tap Water

A recent article found on Science Daily discusses the current drought situation in Wichita, TX.  Due to the effects of a 3 year drought Wichita is struggling to find water resources that they can tap into to effectively cover the Wichita population.  However, the town is looking into a rather controversial solution turning toilet water to tap water.

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Nine Steps to Save Waterways and Fisheries

Water conservation is a frequently discussed topic in terms of government, agriculture and water management.  As the global population increases, it is becoming more important to manage water resources .  An article found on the Science Daily discusses nine ways to save waterways and fisheries discovered by researchers.

“Humans have put key freshwater ecosystems at risk because of land development and the loss of the vegetation along rivers and streams, says John Richardson, a professor in the Dept. of Forest and Conservation Sciences at the University of British Columbia, one of 15 freshwater biologists who created the framework to help protect fish and ecosystems into the future.”

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Free Glass Bodied pH Electrodes at Pittcon*

Hanna Instruments is excited to announce that we will be giving away 1000 glass bodied pH electrodes, at Pittcon 2014 March 3rd-6th in Chicago, IL.  Come by and visit us at booth #4424 and get your free special edition Hanna Instruments pH electrode.

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New Titration Autosampler

Hanna Instruments is excited to announce that we will be releasing the NEW Autosampler, HI 921, at Pittcon 2014 March 3rd-6th in Chicago, IL.  Come by and visit us at booth #4424 and get your first look at the HI 921.

The HI 921 Autosampler is an extension of Hanna’s titration family.  It is designed for use with the HI 902 potentiometric titrator.  The HI 902 is a research grade potentiometric titrator, designed to measure pH, NaCl, Ascorbic Acid, Calcium, and much more.

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“Water Falls”

An article found on the Water World website promotes a new film by NASA entitled “Water Falls.”  This video will showcase the journey and effect that water has on society.

“Titled “Water Falls,” the video highlights water’s role on Earth as a precious resource that impacts climate, weather, agriculture, urban sustainability, and the natural world. The film also tells the story of the ambitious Global Precipitation Measurement (GPM) space-based research initiative, which will use revolutionary technology and a network of U.S. and international satellites to provide a global picture of rain and falling snow.”

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Fluoride in Water

Fluoride is a naturally occurring element that helps to prevent tooth decay.  An article found on the American Water Works Association website discusses the Fluoride in drinking water, health, and safety.  Since adding fluoride to the water in 1945 child tooth decay has reduced by 20-40%.

“Fluoride’s effect is topical. It keeps the tooth enamel strong by preventing the loss of important minerals.”  Fluoride in drinking water is endorsed by American Dental Association, the American Medical Association, and the US Public Health Service.”

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Hanna Instruments at Pittcon

Hanna Instruments is excited to announce that we will be exhibiting at Pittcon 2014 in Chicago, IL.  Come by and visit us at booth #4424 and see what Hanna has to offer.

Pittcon is the world’s largest annual conference and exposition for laboratory sciences.  Organized by The Pittsburgh Conference on Analytical Chemistry, Pittcon attracts over 18,000 laboratory scientists of all backgrounds.

This year Pittcon will be held at McCormick Place in the windy city from March 3rd through the 6th.

Hanna Instruments will be showcasing many new products including:

edge® series- The world’s most revolutionary pH/DO/EC meter!  edge® is ultra-thin and versatile, and is capable of being used as either a benchtop meter or portable meter!

Titration Systems- Hanna Instruments offers a variety of titrator’s including the Karl Fischer, Coulometric and Volumetric, Potentiometric, and application specific.  These instruments include the HI 902C, HI 903, HI 904, and the HI 84500.

Hanna Instruments will also be showcasing the NEW Hanna Autosampler!

To learn more about our products visit

Tannins in Wine

A recent article in Scientific American describes how tannins in wine and teas give the beverage its “characteristic pucker”.  Scientists, while able to capture finished tannins inside the plant cells, are still unaware of how tannins have formed there in the first place.

“Tannins are a major way plants have of telling herbivores to graze elsewhere. They are deterrents because they denature — that is, deactivate — proteins. Humans have long taken advantage of this denaturing ability to “tan” animal skins with tannins, producing leather. The denaturation of the hide proteins by tannins renders them impervious to bacterial attack — otherwise known as rotting. In plants, tannins may also dissuade microbes and fungi from attacking and help protect plants from damaging UV.”

Tannins in wine come primarily from the grape (the skins, seeds and stems of a wine grape) and the wood barrels the wine is aged in. When referring to wine, tannin adds bitterness and astringency as well as complexity.  Because tannins are polyphenols they tend to cling to proteins.  This causes tannins to find protein in saliva which in turn gives the inside of the mouth a rough and dry feeling.  Although it may seem primarily negative tannins are important to wine by providing structure and flavor complexity.

One can find tannins in a variety of ways, most commonly woody plants such as ferns or persimmons. It can also be found in the tint of lakes and ponds, as stated by the author Jennifer Frazer, “Though the waters were chestnut brown, they were clear. I could easily see the logs and rocks on the bottoms of the ponds.”


Brillouet J.M., Romieu C., Schoefs B., Solymosi K., Cheynier V., Fulcrand H., Verdeil J.L. & Conejero G. (2013). The tannosome is an organelle forming condensed tannins in the chlorophyllous organs of Tracheophyta, Annals of Botany, 112 (6) 1003-1014. DOI: 10.1093/aob/mct168

Hanna Instruments manufactures several meters for measuring wine including:


HI 83741
HI 83742
HI 83748

HI 84500
HI 84502

To read the entire Scientific American article, click here.

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