Teledyne Leeman Labs Blog

Everything You Wanted to Know about Olive Oil

Posted by Betsey Seibel on Aug 29, 2017 10:45:23 AM

The American Chemistry Society recently took a look at the chemistry of olive oil in a recent episode of its YouTube show, Reactions.

 

The debate about whether olive oil is healthy continues, but there is a lot of chemistry that goes on to produce a bottle.

 

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Tags: ICP-OES, Edible Oils

Food Sleuths Seek Out Bogus Ingredients, Bad Pathogens and Imposter Foods

Posted by Betsey Seibel on Oct 3, 2016 1:01:27 PM

With millions of consumers reportedly getting sick each year from foodborne diseases, how do food analysts know the best methods to keep products safe, manage risk and protect the integrity of their brands?  With the variety of methods available in the battle of food defense, food safety experts have to carefully hone their choices. A recent article in Lab Manager magazine went into more detail about a few of these methods.

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Tags: ICP-OES

Heavy Metals in Reagent Chemicals

Posted by Betsey Seibel on Aug 30, 2016 2:27:59 PM

When it comes to analytical testing, there is a single organization that sets the requirements and develops the methods for determining the purity of reagent chemicals, the American Chemical Society (ACS).

 

Teledyne Leeman Labs recently completed an analysis of reagent chemicals to determine their ultratrace elemental levels. The purpose of the analysis was to “demonstrate the ability of the Teledyne Leeman Lab’s Prodigy7 simultaneous ICP-OES, to quickly and accurately determine ultratrace elemental levels in selected reagent grade chemicals.” The company performed the analysis using procedures developed by the ACS. Results were then compared with ACS specifications.

 

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Tags: ICP-OES

Introducing the Prodigy Plus Inductively Coupled Plasma – Optical Emission Spectrometer

Posted by Betsey Seibel on Jul 20, 2016 3:05:55 PM

Leeman Labs is a pioneer in the ICP spectrometry industry, and we were the first to use an Echelle spectrometer for ICP-OES. Recently we added our new Prodigy Plus High Dispersion ICP Spectrometer to our family of ICP-OES instruments. The Prodigy Plus builds upon our legacy and experience, while incorporating new state-of-the-art technology.

 

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Tags: ICP-OES

Using Teledyne Leeman Labs Prodigy7 ICP-OES for Analysis of Petroleum Samples

Posted by Betsey Seibel on Nov 5, 2015 3:26:27 PM

Since the 1970s, petrochemical labs have used Inductively Coupled Plasma - Optical Emission Spectroscopy (ICP-OES) as a key technique to determine a range of elements and concentrations in both aqueous and organic samples. ICP is compatible with a variety of organic solvents, which means it permits the preparation of a broad range of sample types using a simple dilution.

 

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Tags: ICP-OES

Alloying Elements in High-Carbon Steel

Posted by Betsey Seibel on Aug 13, 2015 1:42:00 PM

Steel is critical to our modern world, with companies producing more than 1.6 billion tons every year[i]. When it comes to high-carbon steel, the higher the carbon content, the harder and stronger the steel is.  As carbon is reduced, the iron becomes more flexible and easier to form. Carbon steel makes up more than 85% of the steel produced in the United States, and while other alloys can be used to change steel properties, such as Manganese and Vanadium, carbon is the most cost-effective alloying material for iron.

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Tags: ICP-OES, Carbon Steel

Teledyne Leeman Labs: A Historical Perspective

Posted by Jason Davis on Mar 20, 2015 4:08:59 PM

History of Teledyne Leeman Labs

OldLeemanLabsInclogoIn 1981 John R. Leeman and Karl Hildebrand founded Leeman Labs to produce analytical instrumentation based on the promise of Inductively Coupled Plasma-Atomic Emission Spectroscopy (ICP-AES) [also referred to as Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES)] to identify and quantify the concentration of elements within a sample.

PS950ICPOESThis initial success established Leeman Labs as both an innovator and an expert in ICP-OES and lead the company to endeavor into other realms of atomic spectroscopy adding the DC Arc technique and Mercury Analysis to its line of analytical instrumentation.  In 2004 Leeman Labs was acquired by Teledyne technologies to augment Teledyne's existing laboratory and continuous monitoring instruments used in environmental applications, and complement Teledyne Tekmar's organic analysis instrumentation.

Today, its instruments can be found conducting analyses across a broad spectrum of industries and sample types.  The usefulness of Teledyne Leeman Lab’s elemental analysis instrumentation ranges from agriculture to aerospace and forensics to food in over 50 countries.

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Tags: mercury, mercury analysis, ICP-OES, ICP-AES, Leeman Labs

Evolution of ICP, Part IV – 2000 to Present

Posted by Betsey Seibel on Feb 10, 2015 1:10:00 PM

The instruments being marketed today have reached a level of sophistication that would not have seemed possible 40 years ago. Though the fundamental principles of the technique have not changed, the technology has seen significant advancements, especially in the design of the ICP source, optical spectrometer and detection systems. Simultaneously, milestones in real-time elemental coverage, sample throughput and ease-of-use, continue to make it easier to reach new pinnacles in productivity and data quality.

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Tags: ICP-OES

Evolution of ICP, Part III: 1990s – The Dawn of Dual View Plasmas and Array Detectors

Posted by Betsey Seibel on Feb 3, 2015 12:39:00 PM

With the 1970s known as the birth of ICP-OES and the 1980s as the era of versatility, the decade of the 1990s was the dawn of some major breakthroughs in ICP optical spectrometry.  These breakthroughs centered on the Plasma orientation and solid state Detectors, which initiated hopes of simultaneous detection of the entire ICP spectrum. 

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Tags: ICP-OES

Evolution of ICP, Part II: 1980s – It Was All About Versatility

Posted by Betsey Seibel on Jan 27, 2015 1:28:44 PM

In part I of the Evolution of ICP, we focused on the first decade of ICP instruments, which were based on the Paschen-Rünge optical design. In part II of the blog series, we jump into the 1980s, and the next era in innovation.

The wavelength restrictions associated with the Paschen-Rünge optical design led to the development of sequential spectrometers in the early 1980s.  Most of these instruments relied on the principle of scanning a dispersive optic (typically a ruled or holographic diffraction grating) to select the specific wavelength of light corresponding to the element of interest. These instruments were extremely versatile, possessing the ability to access nearly any wavelength in the electromagnetic spectrum from 160 - 900 nm.  Their downside lay in their ability to access only one wavelength at a time (thus named sequential), resulting in slow analysis times. On an instrument of this type, a typical analysis could take several minutes to cover the 10 to 20 elements of interest. A schematic diagram of a typical scanning sequential spectrometer is shown in the schematic below:

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Tags: ICP-OES