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 500 sets of data. Yet, they remain affordable. And, they meet GLP requirements, stamping all calibration and stored data with time/date.
Take a look to see how these meters might enhance your lab:
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 substance in a solution. It is often used to reduce the concentration of microscopic organisms or cells in a sample or standard.
When using pH meters or ion meters to measure ion concentration in a solution, it may be beneficial to have multiple standard values to calibrate your ion selective electrode. Typically, begin with a 1000 parts per million (ppm) standard and dilute this down to a smaller value such as 100 ppm and further to 10 ppm or even further if a lower concentration is required.
This helpful video illustrates a stepwise dilution of a 1000 ppm standard down to 1 ppm. This procedure is quite common, however overlooking steps in the process, using poor technique, or lacking organization can lead to errors. It is especially critical to stay organized.
We would love to hear from you. Tell us your stories of mishaps when performing a serial dilution, or share tips to stay organized when performing this technique.
The latest advancement in Oaktonbenchtop meters has arrived at Cole-Parmer. The new Oakton® 2700 Benchtop Meters offer advanced functionality, making them an excellent choice for research applications.
The 2700-series meters feature superior, oversized displays with a bright backlight and dynamic stability indicator. The meters conveniently stamp all calibration and stored data with the time and date, meeting GLP requirements. Their nonvolatile memory stores and recalls up to 500 sets of data―simplifying the process of documenting large volumes of measurement. Advanced setup options enable user customization for added flexibility. Users can also program data logging intervals for continuous monitoring. Programmable limit alarm sounds off when readings fall out of range.
The Oakton pH 2700 meters have an expanded pH range from -2.000 to 20.000 with improved accuracy of +/- 0.002 pH and a resolution of 0.001 pH. Other models in the series are available to measure ion concentration, conductivity/TDS, pH/conductivity/TDS, and dissolved oxygen.
Take a look at Cole-Parmer’s new and best-selling food process, quality, and safety products at the IFT Annual Meeting & Food Expo®, held at McCormick Place in Chicago.
APEX 100 Metal Detector
Innovative new products on display include the APEX 100 Metal Detector from Thermo Scientific. Using only food-grade materials in its construction, the APEX 100 meets the hygienic standards required by the industry—including HACCP policy compliance. It features dual frequency and gain operation for maximum application flexibility and is fully tested to meet IP65/NEMA/ATEX requirements. Designed for reliability and ease of use, the detector can be matched exactly to a specific conveyor width and product height through numerous aperture size configurations available.
Stop by booth #6719 and register for a chance to win one of twenty Super-Sizzling Summer Cool Packs containing a 12-can MusiCooler, a Wireless Weather Station, a 28-oz water bottle, and a freezer pack. You can also request the 2010 Cole-Parmer® FoodTECH Source® catalog.
2010 Cole-Parmer® Fluid Handling System Sourcebook
If you’re looking for brand-name laboratory and process solutions, the 2010 Cole-Parmer® Fluid Handling System Sourcebook contains a comprehensive selection of items. Choose from 240 pages stocked with a variety of Masterflex®, Ismatec®, and other pump systems, along with tubing, fittings, valves, filtration, the latest flowmeter technologies, pH meters, conductivity instruments, baths and circulators, and more.
The book also features new products, including a series of Cole-Parmer® user-friendly touch screen syringe pumps available in infusion, infusion/withdrawal, infusion/withdrawal programmable, push/pull, and push/pull programmable models.
For laboratories or process plants requiring integrated solutions, the sourcebook highlights the BioConnect® program. BioConnect offers custom-made single-use bioprocess assemblies with full lot traceability, manufactured in an ISO-13485-certified, cGMP-compliant facility.
This weekend marks the unofficial start of summer. Millions will be heading to the swimming pool as public pools across the country officially open for business. Before jumping into any pool, keep in mind the importance of proper pH levels in the water.
Oakton® Waterproof pHTestr™ 10
Proper water pH is arguably one of the most critical aspects of maintaining correct swimming pool chemistry. Many articles describe how to properly maintain your pool chemistry and pH levels, so this post won’t detail how to manage your pool chemistry. Instead, think of this as a public service reminder to consider the importance of pool pH and take steps to check your swimming pool’s levels. Add chemicals as appropriate.To determine your pH levels, get a pH testing device from a local pool supply store or hardware store. Cole-Parmer also offers an option for private pool owners or large public swimming pools. Check out our line of pH testing meters.
Our compact Oakton® Waterproof pHTestr™ 10 pH meters are great for outdoor use, including taking pH measurements in lakes, streams, and even swimming pools. These handheld pH meters are designed to float in water—and can be attached to a line running to the house for easy retrieval. The compact pH Testr 10 is even small enough to carry in your purse or pocket and take to a public pool or local beach to ensure that the water is safe. It is encased in Valox® sensor housing, which resists most chemicals. All waterproof pHTestrs also have replaceable sensors for easy maintenance.
Electrode sensors include a clog-resistant Kynar® junction and a recessed, glass pH bulb to protect against breakage. The keypad clicks to confirm operation, and allows access to a variety of functions. Calibrate up to three pH points with the auto-buffer recognition at both USA and NIST standard buffers. Additional features include automatic temperature compensation (ATC), hold function, auto-off function, self-diagnostic error messages, and a three-segment battery-life indicator.
We want to hear from you. Leave a comment and share how you plan to spend Memorial Day weekend. Are you headed to the beach or pool? Any plans for a cookout at the park? What is your ideal Memorial Day weekend activity?
Cole-Parmer® Life Science Products & Solutions Catalog — This 48-page catalog is targeted for Life Science applications such as cell biology, tissue and cell culture, electrophoresis, fermentation, genomics, histology, and microbiology. Features high-quality laboratory instrumentation including thermal cyclers, microscopes, balances, centrifuges, pH meters, pumps, and more.