Tekmar Talk Blog

Determining Relevant Detection and Quantitation Limits

Posted by Stephen Proffitt on Fri, Feb 09, 2024 @ 02:01 PM

Quantitative analysis determines the concentration of a target analyte present in a test sample. Detection limits and quantitation limits are used to express the ability of the instrumentation and the accuracy of the analytical results. This blog provides a brief overview on guidelines and references for achieving applicable detection limits and reliable quantitation limits.

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Tags: TOC, Total Organic Carbon, Teledyne Tekmar, relevant detection, quantitation limits

US EPA prioritizing two VOCs used in Purge and Trap analysis for risk evaluation

Posted by Amy Nutter on Mon, Feb 05, 2024 @ 08:57 AM

Late last year, the United States Environmental Protection Agency (EPA) announced it will be prioritizing five toxic chemicals for risk evaluation under the Toxic Substances Control Act. During this process, if the EPA designates these chemicals as High Priority Substances, they will undergo an extensive comprehensive study. These studies will be crucial to helping protect people from toxic exposure.

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Tags: VOC, Volatile Organic Compounds, P&T, Purge and Trap

Preparing Your Instruments for the Holiday Break

Posted by Amy Nutter on Fri, Dec 08, 2023 @ 02:05 PM

With the holiday season upon us, your laboratory might be slowing or shutting down as you take time off from work. If you or your colleagues are away from your instruments for more than a long weekend, there are steps you can take to ensure a smooth startup when you get back into the laboratory.

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Tags: Purge and Trap Concentrator, GC/MS, P&T

Helium Conservation in Purge and Trap Analysis

Posted by Amy Nutter on Thu, Nov 02, 2023 @ 03:42 PM

Has your laboratory been having issues obtaining helium for your environmental analysis? As helium supplies become scarcer and more expensive, you may have been seeking alternative carrier gases or ways to conserve helium without sacrificing system performance. This blog will explore ways to conserve helium during your purge and trap (P&T) analysis.

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Tags: helium, VOC, Teledyne Tekmar, P&T, Purge and Trap

Troubleshooting Part 6: Benchmark Troubleshooting Tool

Posted by Amy Nutter on Fri, Oct 20, 2023 @ 01:18 PM

In this last installment of our volatile organic compound (VOC) analysis troubleshooting series, the benchmark test will be covered. This benchmark test is available in the Teledyne Tekmar TekLink software tools menu. The tool allows for full electromechanical testing, including valving, heaters, vial handling systems, liquid delivery system, inputs and outputs.

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Tags: VOC, Teledyne Tekmar, Volatile Organic Compounds, Purge and Trap

Troubleshooting Part 5: Six warning signs of a leak in your Purge & Trap and ways to detect the source

Posted by Amy Nutter on Wed, Sep 06, 2023 @ 04:07 PM

Throughout this troubleshooting series, in nearly every topic discussed, the answer led to performing a leak check on the Purge and Trap (P&T). This part of the series will go over the preventative maintenance program and understanding the leak check troubleshooting tool in Teklink, the Teledyne Tekmar P&T software.

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Tags: VOC, P&T, Purge and Trap, Atomx XYZ

Troubleshooting Part 4: Linearity and reproducibility issues

Posted by Amy Nutter on Fri, Aug 11, 2023 @ 11:12 AM

This is the forth in our Troubleshooting series for VOC Analysis. 

Troubleshooting linearity and reproducibility issues in your systems can be difficult. Problems with linearity and reproducibility can make calibrating your systems frustrating, and if internal standards are varying, it can cause all other target compound to look unstable.

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Tags: VOC, P&T, Purge and Trap

Troubleshooting Part 3: Elution issues and moisture control

Posted by Amy Nutter on Fri, Jul 28, 2023 @ 01:33 PM

This is the third in our Troubleshooting series for VOC Analysis. 

Part three will discuss elusion issues and moisture control for VOC analysis.

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Tags: VOC, Teledyne Tekmar, Volatile Organic Compounds, P&T, Purge and Trap, Moisture Control

Understanding the Importance of Cleaning and Blanking Procedures for the Fusion UV/Persulfate TOC Analyzer

Posted by Stephen Proffitt on Fri, Jun 30, 2023 @ 04:03 PM

A typical analysis schedule for the Fusion TOC analyzer starts with a cleaning procedure. The cleaning procedure confirms cleanliness of the system and will ensure low instrument background. Also, tracking cleaning procedure results from day to day will give an indication if any contamination issues may be occurring. It is imperative to have low background and no contamination to achieve superior low-level TOC results.

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Tags: TOC, Fusion

Achieving the Maximum Analytical Range of Teledyne Tekmar’s Fusion UV-Persulfate TOC Analyzer

Posted by Stephen Proffitt on Tue, Jun 27, 2023 @ 03:34 PM

The Fusion Total Organic Carbon (TOC) analyzer is equipped with TOC Teklink, a fully optimized graphical user interface.

This blog will demonstrate how Teklink helps to achieve the maximum analytical range for analysis.

To allow for quick startup, predetermined methodology has been set up for various sample types. For example, there are preset methods for analyzing pharmaceutical water, drinking water, and wastewater.

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Tags: TOC, Fusion

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