标准品/ICP-MS校准溶液2/介质:2-5%硝酸

The gravimetric uncertainty for this product is ±0.24%. The CRM uncertainty is±2 4%.

In order to verity the concentration(s) the final solution was checked by plasma emission spectroscopy (ICP) against material traceable to the above listed NIST SRM(s).

We use the highest purity raw materials available to minimize impurity levels in the final solution. Typically 99.999%+ pure starting materials are used as well as high purity acids and ASTM Type I 18 megohm  deionized water.

All weights are traceable through NIST, Test No.684/289871-17

All glassware used in preparation is Class A and calibrated regularly.

All bttles are acid leached and triple rinsed with deionized water prior to use.

Shake bottle prior to use and do not pipette directly out of the bottle. Use only cleaned Class A volumetric glassware. Keep bottle tightly capped.