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Tekmar Talk Blog

Betsey Seibel

Recent Posts

Fresh Produce Companies Moving to On-site Residue Testing

Posted by Betsey Seibel on Thu, Jun 15, 2017 @ 07:49 AM

Pesticides are undergoing an increased level of scrutiny with technical standards tightening and consumer knowledge of food safety on the rise. They are the most widely used chemicals by fruit and vegetable farmers, and cover everything from herbicides that kill weeds and insecticides that kill insects to fungicides that kill fungus. The increased knowledge about pesticides and the demand for organic produce has many companies looking for ways to reduce pesticide residue and deliver to consumers fruits and vegetables that are safer and chemical-free. A company in Malaga, Spain is one of a “growing number of companies,” going the extra step by opening its own residue-testing laboratory. Frutas Montosa lab will use the latest technologies, including QuEChERS, gas and liquid chromatography and mass spectrometry, to ensure its food is safe and secure.

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Tags: Pesticide Residue

Strawberries Top the Pesticide List… Again

Posted by Betsey Seibel on Mon, Apr 24, 2017 @ 03:07 PM

An analysis of the U.S. Department of Agriculture data found that “nearly 70% of samples of 48 types of conventionally grown produce were contaminated with pesticide residues.”[i] On the more than 35,000 produce samples tested by the USDA were found 178 different pesticides and residues, which remained on the fruits and vegetables even after washing, according to the Environmental Working Group (EWG).

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Tags: Pesticide Residue

Time Management and Productivity Tips to Help You Succeed

Posted by Betsey Seibel on Wed, Jan 25, 2017 @ 10:00 AM

Benjamin Franklin once said, “Lost time is never found again.” We all wear so many hats these days that it can be impossible to effectively manage our time. But if there is one thing that we’ve all been dealt equally, it is time.  Saint Leo University (SLU), a liberal arts university located outside Tampa, Fla., recently shared 14 strategies[i] to help its online students better manage their time.  A slightly modified list was subsequently shared on LabManager.com.

 

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Tags: Time Management

U.S. Government Amends TSCA; EPA Names First 10 Chemicals it will Evaluate Under New Authority

Posted by Betsey Seibel on Mon, Jan 16, 2017 @ 03:24 PM

In June 2016, the Toxic Substances Control Act, the law that governs chemicals in household and industrial products, was updated for the first time in nearly 40 years. In the past, before the agency could request safety data from the industry for new chemicals, the agency had to first show that a chemical may pose a risk. The passing of the revised TSCA allows the Environmental Protection Agency to request safety data and assess the safety of chemicals that are currently being used in a variety of products. In November, the agency selected the first 10 chemicals to evaluate under the new guidelines. The chemicals included:

 

  • 1,4-Dioxane (solvent, stabilizer)
  • 1-Bromopropane (solvent)
  • Asbestos (wide variety of uses, e.g. building materials)
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Tags: VOC

Meet the Teledyne Tekmar Team - Joy Osborne Profile

Posted by Betsey Seibel on Mon, Dec 19, 2016 @ 12:34 PM

Meet the Teledyne Tekmar Team

During the next several months, we will be introducing members of the Teledyne team through Q&A sessions in our blog. The posts will provide an opportunity to put a face to a name, as well as background details about our internal subject matter experts, and their perspective on lab technology and industry issues.

 

Spotlight: Joy Osborne, TOC Product Line Manager / Applications Chemist, Teledyne Tekmar

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Tags: Teledyne Tekmar

Meet the Teledyne Tekmar Team - Jacob Rebholz Profile

Posted by Betsey Seibel on Tue, Nov 01, 2016 @ 03:24 PM

Meet the Teledyne Tekmar Team

During the next several months, we will be introducing members of the Teledyne team through Q&A sessions in our blog. The posts will provide an opportunity to put a face to a name, as well as background details about our internal subject matter experts, and their perspective on lab technology and industry issues.

 

Spotlight: Jacob Rebholz, VOC Product Line Manager, Teledyne Tekmar

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Tags: Teledyne Tekmar

Can Sample Size Trends Be Trusted?

Posted by Betsey Seibel on Mon, Oct 24, 2016 @ 03:49 PM

The euphoric first few hours of a newborn’s life are briefly interrupted when the infant is whisked away, and the nurse informs the parents that staff will be pricking their infant’s foot for blood drops.  This test, that uses dried blood spot (DBS) technology, has been employed for over five decades.  The minimally invasive DBS test requires only a few drops of blood--DBS is the standard newborn screen for developmental, genetic and metabolic disorders.  DBS is also used in a variety of tests for adults; DBS can be employed for gene screening and long-term genetic bio-banking.

The sample preparation methodology used in DBS and other analysis systems has been trending toward using statistically smaller sample amounts.   This movement leaves bioanalysts experts to consider the question, “Is bigger better?”  Does a little sample size shape the exactness of results?  Are there connections linking sampling exactitude and sampling breadth? Do fresh, alternative microsampling approaches provide similar confidence levels? These are questions posed by a recent column in the September 2016 issue of LCGC Asia Pacific, titled “Know Your Sample: Size Matters”

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Tags: %RSD, SPME

Charged Additives Save Pesticides and the Environment

Posted by Betsey Seibel on Mon, Oct 03, 2016 @ 11:34 AM

The term “spring water” brings to mind a clear, mountain stream.  But “spring” or “bounce” in water actually is a safeguard for plant leaves.  Liquid droplets have elasticity and bounce off of leaves.  This “water bounce” protects plants because plants drink in water from their roots, not from leaves.  If water lingers too long on leaves, then mold builds up and decays the plant. 

However, this protective “water bounce” from Mother Nature has negative side effects for farmers. 

Around the world, farmers commonly spray their fields with pesticides.  The innate “bounciness” of liquid droplets forces a considerable amount of the pesticide off of the plants; only a paltry amount of what is sprayed actually sticks. Therefore, farmers must use a lot more pesticide than they need.  And because farmers have to use so much spray to get the desired pesticide benefits, surplus pesticide chemicals seep off plants and end up polluting land and waterways. 

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Tags: pesticides

TOC Combustion Analyzer Gets Solids Module

Posted by Betsey Seibel on Tue, Sep 27, 2016 @ 04:30 PM

Teledyne Tekmar has added a new solids module to its Lotix TOC Combustion Analyzer. The Lotix Solids Sampler (LSS) Boat will allow the analyzer to measure carbon content in a variety of matrices, including soils, sludge, sediments, particulate-laden liquids and hard-to-oxidize samples.

 

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Tags: TOC

Teledyne Tekmar’s New Lumin Purge and Trap Concentrator

Posted by Betsey Seibel on Tue, Sep 27, 2016 @ 04:15 PM

Teledyne Tekmar has been building commercial purge and trap concentrators for more than 40 years. Labs worldwide associate the Tekmar name with innovative, high-quality products for analyzing volatile organic compounds (VOCs). In March, we introduced the newest member of our purge and trap family, the Lumin Purge and Trap Concentrator, an ideal solution for drinking water and wastewater applications.

 

The Lumin Purge and Trap Concentrator is an eighth generation system, and combines tried-and-true features with new innovation, to create the fastest and most reliable concentrator in the Tekmar line-up. The new features and benefits will carry our company into the next decade.

 

The benefits include:

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Tags: Purge and Trap Concentrator

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