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Multiple quality control steps are observed when preparing our high purity ICP standards and ICP-MS standards. We begin with the purification of the starting materials. This purification is time consuming, but the final, high purity product is the goal.
Stoichiometry is controlled during this process, allowing for the streamlining of the standardization checks later on. The purified product is then checked for trace impurities by ICP methods.
Typically, each starting material has a purity between 99.998% to 99.999%. Other ingredients include high purity acids and ASTM Type I water (18 Megaohm).
