Reaction Vessel Materials for Ultra-Trace Metals Analysis
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"Over the past two decades, materials identified as being
noncontaminating (Teflon, quartz) have become the top choices
for . . . reaction vessels . . . for ultra trace analysis."
— U.S. EPA SW-846, Chapter 3, Update IVB
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You want to process your samples in only the purest, most chemically inert materials available. Milestone's sample vessel inserts, in either TFM or quartz, provide a clean, non-contaminating environment for ultratrace metals analysis.
Teflon
We engineer all of our Teflon vessels from TFM, the most dense and thermally resistant form of Teflon available for microwave digestion. TFM is chemically inert to most dissolution reagents and provides a non-contaminating environment for trace metals analysis.
Quartz
Ultrapure quartz is another material of choice for trace analysis. Benefits of quartz inserts include:
- High purity for low analytical blanks. Quartz is the highest purity material for low ultra-trace analysis, ensuring low analytical blanks and nonmemory effects.
- Complete recovery of volatile elements. Quartz eliminates diffusion into vessel walls, ensuring complete recovery of volatile elements (Hg, Se, Cd, etc.).
- Maximum flexibility. Quartz inserts fit inside most standard Milestone microwave digestion vessels.
- High sample throughput. Up to 12 samples can be processed at the same time.
Ideal for Small Reactions
TFM and Quartz inserts can be used within standard 100 mL TFM vessels for smaller samples or to minimize the dilution factor.
Clean Chemistry: Continue to trace cleaning, acid purification, closed-vessel digestion, or sample evaporation.
General: Go to the Milestone front page, or send us an inquiry.


