Monthly Archives: July 2019

SW-846 and EPA 600 Series Method Transition Schedule

On September 3, 2019 ARI will be begin the transition to SW-846 method versions SW8270E, SW8260D, SW6010D, and SW6020B. All the specifics regarding the transition can be found in this post for the organic methods and this post for the inorganic methods. The method assigned to the samples on or after this day will depend on the accrediting agency for the project beginning with work done under WDOE. ORELAP and DoD related projects will follow later pending accreditation.

WDOE accreditation for EPA methods 625.1 (semi-volatile) and 624.1 (volatile) has already been approved. Please see the recently updated WDOE scope for the full list of accredited analytes.

Eventually ARI will no longer log analytical requests for the previous versions of those methods once all the replacement accreditations are issued. If you have questions regarding the changes and what it means to your project please contact ARI directly via your project manager or using the website contact form.


Soil TOC Analyzer

New Technology Highlight-Elementar TOC Cube

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Category : news , technology

Classic analysis methods for Total Organic Carbon (TOC) required extensive pre-analysis preparation including multiple drying steps, grinding, and acidification. With the purchase of the Elementar TOC Cube Analytical Resources is now able to analyze for TOC, Total Inorganic Carbon (TIC), and Residual Oxidizable Carbon (ROC) without all the time consuming preparation and still improve on reproducibility with faster, unattended, sample throughput.

Sample analysis sizes used in the Elementar TOC Cube are allowed to be on the order of grams which allows for more representative analysis of non-homogeneous sample matrices. True matrix spike samples can be created, as opposed to post-spike samples where the spike is introduced at analysis, providing a more accurate QC measure of the method.

With this investment in instrumentation and training ARI is able to provide higher quality analytical results with a shorter TAT. Contact your project manager directly or use our contact form to learn more about pricing, reporting and control limits, and options for TOC, TIC, and ROC analysis.