Teledyne Leeman Labs Blog

Sara Kennedy

Recent Posts

Landfill Leachate: a Source of Mercury Contamination in Groundwater

Posted by Sara Kennedy on Feb 15, 2024 3:41:51 PM

What is a Municipal Solid Waste Landfill?

Have you ever wondered what happens to a bag of garbage once it has been collected on trash day? If it is collected from a household or commercial site, it will likely end up at the Municipal Solid Waste Landfill (MSWLF). These are highly engineered facilities that are

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Tags: mercury, Mercury in Wastewater, hg, mercury contamination

2023 Mercury Inventory Report Published by the EPA

Posted by Sara Kennedy on Feb 2, 2024 2:44:44 PM

Mercury is a persistent, global, and toxic element. It does not degrade, but it changes forms as it cycles through the environment. When mercury is emitted, it can be transported over long distances and re-deposited.

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Tags: Hg analysis, mercury, hg

Bright ideas to Reduce Mercury in the Energy Stream

Posted by Sara Kennedy on Jan 8, 2024 3:50:31 PM

Coal generates a lot of unwanted pollution when mined and burned for fuel, yet it is a major source of energy for everything from generating electricity to making steel. Coal is a reliable source of energy and heat, but also a reliable pollution generator, even under current regulations.

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Tags: mercury, hg

QuickTrace Startup and Shutdown: Returning to the Lab After a Long Break

Posted by Sara Kennedy on Jan 5, 2024 4:08:09 PM

Whether it’s for a long holiday weekend or a plant shutdown, instrumentation sometimes needs to be turned off for an extended period. If you and your colleagues will be away from your work for more than a few days, there are steps you can take to ensure a smooth startup when you get back to the lab.

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Tags: CVAA, CVAF, QuickTrace

Mercury Stability in Hydrochloric Acid vs. Nitric Acid

Posted by Sara Kennedy on Jan 5, 2024 1:51:10 PM

Teledyne Leeman Labs has been in the mercury (Hg) analysis business for more than 30 years. We have had a variety of product lines reach new markets and address tighter regulations. In that time, one thing has remained constant across all our instruments: the need for accurate mercury standards to form the building blocks of the calibration curve. Analytical results are only as reliable as the calibration curve to which they are compared, and creating stable mercury standards comes with unique challenges.

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Tags: Teledyne Leeman Labs, Hg analysis, mercury, mercury analysis, QuickTrace, hg

Low-Level Total Mercury Determination: From Collection to Determination - Part 3: Determination

Posted by Sara Kennedy on Aug 29, 2023 3:59:15 PM

Teledyne Leeman Labs offers multiple mercury (Hg) analyzers which can determine total mercury concentrations in samples at the ultra-trace level. The final installment of this three-part blog series will be an introduction to the QuickTrace line of mercury analyzers: the QuickTrace M-7600 and the QuickTrace M-8000.

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Tags: Teledyne Leeman Labs, Hg analysis, mercury, hg

Low-Level Total Mercury Determination: From Collection to Determination: Part 2 - Digestion: Chemicals and Procedure

Posted by Sara Kennedy on Aug 4, 2023 1:39:39 PM

In Part 1 of this series, sample collection, container types, and preservation techniques for low-level total mercury (Hg) analysis were discussed. In Part 2, I will highlight contamination sources from chemicals and the potential for analyte loss associated with digestion protocols.

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Tags: Hg analysis, low level mercury, mercury analysis

Low Level Total Mercury Determination: From Collection to Determination

Posted by Sara Kennedy on Jul 28, 2023 1:27:22 PM

Mercury (Hg) determination at the ultra-trace level is an essential part of environmental assessment and drinking water monitoring. But this type of analysis comes with distinct challenges.

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Tags: Hg analysis, low level mercury, mercury, mercury analysis, Determination of Trace Elements

Do you know your QuickTrace M-8000's PMT voltage?

Posted by Sara Kennedy on Jun 5, 2023 10:03:20 AM

We often get asked if there is an ideal photo multiplier tube (PMT) voltage for the QuickTrace® M-8000. The truth is the optimal value is unique to each instrument’s detector. It varies from instrument to instrument. During the initialization process, after connecting to the QuickTrace software, the M-8000 will select the voltage that is right for the PMT inside that system. This is the same process as clicking the Auto Select Voltage button in the Instrument Control menu. So, why is there another Set Volts option in that same menu?

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Tags: Teledyne Leeman Labs, mercury, QuickTrace

Battery Recycling: The Surge for Green Materials

Posted by Sara Kennedy on May 17, 2023 3:58:48 PM

We are in a battery recycling boom! A strong push from consumers for corporate responsibility in source origins and greener options overall has been felt by companies all over the world. Using recycled materials can be a cost-effective, logical choice for supporting Green Initiatives and boosting the bottom line.

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Tags: mercury, Green Materials, Battery Recycling