Microwave Digestion Archive

The ashing test on food samples is commonly used for evaluation of mineral content. Microwave ashing procedure for determination of inorganic ash in food samples is an alternative and rapid method for determination of mineral content in food samples. Milestone PYRO system incorporates all of the benefits of a microwave system working with special fast heating/cooling crucibles while making the ashing application fast, easy, effective, and in complete safety.

RSSL deals with a wide variety of food samples on which they must provide either the ash content or the elemental analysis after ash content. The overall process time for these analyses was time consuming as it required several hours. RSSL wishes to provide a superior service to their clients and enhance their turnaround time for this specific testing. RSSL acquired a PYRO microwave muffle ashing furnace mid of 2019 for total ash determination in food samples. The muffle utilizes microwave heating to ash samples, which reduces the process time and electricity consumption when compared to conductive heating muffles.

The USP chapter describes the methodology for measurement of inorganic contaminants in pharmaceutical samples, where the adopted technique is the Sulfated Ashing. Milestone's PYRO is an advanced sulfated ashing system, that allows to run this particular application in one step only, thus assuring operators’ safety and reproducibility of results.

A rapid determination of the carbon black content allows quick feedback to production and for adjustment when required. The use of Milestone’s PYRO muffle furnace (High Sample Throughput configuration) along with self-closing quartz crucibles and dedicated rack (20 positions) ensures fast determination and high reproducibility compared with the reference method ASTM D1603.

The UltraFAST crucibles allow the PYRO user to dramatically reduce the overall ashing time, from start to end thanks to their innovative material that allows the samples to be surrounded by a constant airflow.

Heidelberg Materials Romania chooses DMA-80 for mercury analysis. Discover how a cement industry could optimize mercury analysis at their Fieni cement plant using the DMA-80 Direct Mercury Analyzer in full compliance with regulatory mercury emissions and with EPA 7473.

The International Organisation for Standardisation (ISO) has developed a method for detecting trace amounts of mercury in cosmetic. This method involves the direct analysis of cosmetic samples without the need for sample preparation. This has led to the introduction of ISO 23674, which focuses on direct mercury analysis techniques. In this application report we demonstrate how Milestone DMA-80 evo responds to the requirements of the ISO 23674.

With the cost of reagents and their disposal continually rising, it is important for laboratories to find more cost effective ways to do mercury analysis. With this in mind, Milestone has created a cost comparison to show the benefits of using our DMA-80 evo Direct Mercury Analyzer, which offers more than double the productivity of traditional cold vapor techniques at a fraction of the cost.

Aquagro is a company specialized in exporting fresh swordfish to Europe from the South Pacific. Its primary goal is to deliver a superior service that provides its clients with complete comfort regarding the quality and safety of their seafood products. At Aquagro, 100% of the fish is inspected for mercury levels in order to meet all European consumer-safety regulations. Aquagro is capable of sampling about 6,500 samples every month. Aquagro’s testing lab was experiencing difficulties with handling large number of samples and rush deliveries that needed to be processed every day to ensure quality and compliance with European legal requirements and regulations. After evaluating many instruments, the Milestone DMA-80 evo direct mercury analyzer was the clear choice to meet Aquagro’s significant throughput needs.