Serial Dilutions
Serial dilutions are among the most commonly performed techniques in biology, chemistry, pharmacology, microbiology, and physics laboratories. A serial dilution is essentially a stepwise dilution of a...
View ArticleAffordable Benchtop pH Meters with Lab-Friendly Features? Watch the Video!
Oakton® 2700 Series Benchtop pH Meters have a lot going for them: an oversized display with bright backlight, high 0.001 pH resolution with ±0.002 pH accuracy, and store and recall function for up to...
View ArticleCreating a Healthier Environment: Gardening and Earth Day
You may know that April 22 is Earth Day, but did you also know that April is also National Garden Month? Home gardening is a great way to support the environment by growing your own fruits and...
View ArticleNatural Resources: The pH of Watering the Garden
August is National Water Quality Month. For gardeners, the quality of their water—and its impact on their plants—can be measured with a simple device. When the tester is working correctly, measuring pH...
View ArticleFood Quality: Why Measure the pH of Yogurt?
Yogurt is made from concentrated milk fermentation. The quality of the product depends on production control of lactic acid formed by fermentation. Lactic acid provides the tart flavor and the...
View ArticleSpring Gardening: Measuring the pH of Soil
Have you tried to plant something in your garden and failed? Maybe you have given up and accepted that you just don’t have a green thumb. The problem may not be with you, but instead with your soil....
View ArticleOptions in pH Meters: Measure pH Wherever You Go
pH measurement is used in testing water, soil, foods and beverages, and more. It refers to the potential hydrogen-hydroxyl ion content of a solution. pH is measured, usually with a pH meter, on a scale...
View ArticleThe Use and Care of Electrodes for pH Meters
When ordering or using a pH meter, you need a pH electrode and at least two pH buffers, one at pH 7 and the other at either pH 4 or 10. Proper care of electrodes is necessary for a ph meter to function...
View ArticleLaboratory Pumps, pH Meters, and Other New Products We Love
Versatility and sought-after functionality describe the laboratory pumps, pH meters, and other new products we recommend. See all of our new products and discover the latest in laboratory equipment....
View ArticleMeasuring pH with pH Meters and Other Methods
Around the world, pH is the most widely tested chemical parameter. From pH paper to popular pH meters, several methods are available for measuring this parameter. pH is measured for various processes...
View ArticleNew Oakton Dissolved Oxygen Meters Showcase New Technology
New Oakton® Waterproof DO 450 and pH/DO 450 Meters use optical RDO technology to reduce maintenance time and costs. Optical meters provide the convenience of no membrane replacement, no electrolyte...
View ArticleAsk the Tech Expert: Jeevan
When Jeevan (also known as James) began answering technical questions as a Cole-Parmer application specialist, stamps were 33 cents and a gallon of gas averaged $1.22. Much has changed in the fifteen...
View ArticleHow pH Influences Wine
Wine’s chemical and biological stability depend on pH value. pH values range from 2.9 to 4.2 in wine, as measured by pH meters. Lower pH values are known to improve stability, so winemakers usually...
View ArticleAsk the Tech Expert: Anthony
“Do not be afraid to ask!” encouraged Anthony, a technical support specialist for Cole-Parmer. When speaking with customers about information they need, Anthony enjoys responding to unusual requests or...
View ArticleGrowing Green by Measuring pH
With green as the color of the day, it prompts the question: how can you make your garden flourish? Perhaps measuring pH will provide the answer. The pH of soil indicates more than its alkalinity or...
View ArticleHow to Test the pH of Your Soil
To test pH, place soil into a clean, dry plastic jar or plastic bag. Remove stones and crush any soil clumps. Gather two to three representative samples of each soil sample to verify results. Oakton®...
View ArticleOptions in pH Meters: Measure pH Wherever You Go
pH measurement is used in testing water, soil, foods and beverages, and more. It refers to the potential hydrogen-hydroxyl ion content of a solution. pH is measured, usually with a pH meter, on a scale...
View ArticleThe Use and Care of Electrodes for pH Meters
When ordering or using a pH meter, you need a pH electrode and at least two pH buffers, one at pH 7 and the other at either pH 4 or 10. Proper care of electrodes is necessary for a ph meter to function...
View ArticleLaboratory Pumps, pH Meters, and Other New Products We Love
Versatility and sought-after functionality describe the laboratory pumps, pH meters, and other new products we recommend. See all of our new products and discover the latest in laboratory equipment....
View ArticleMeasuring pH with pH Meters and Other Methods
Around the world, pH is the most widely tested chemical parameter. From pH paper to popular pH meters, several methods are available for measuring this parameter. pH is measured for various processes...
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