SPEX CertiPrep Claritas PPT® standards are a class of Inorganic Certified Reference Standards designed specifically for today's new generation of trace ICP and ICP-MS instrumentation.

Use to identify or confirm the maximum concentration of an analyte that does not cause a memory effect greater than the contract required detection limit (CRDL). The memory test solutions are not analyzed directly; equal volumes of the two (Memory Test 1 and 2) are mixed and then introduced into the instrument for a normal sample exposure time. A blank is then run to confirm that all analyte memory effects are below the CRDL.

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Chemicals sold by Cole-Parmer are not intended for and should not be (i) used for medical, surgical or other patient oriented applications, or (ii) combined with any food product or ingested in any form.

This multi-element standard contains 7 elements.

• Memory test 2 standard is a 125 mL bottle of 7,200 µg/mL (7,200 ppm) Chloride; 2,000 µg/mL (2,000 ppm) Carbon; 1,000 µg/mL (1,000 ppm) Phosphorus, Sulfur; and 20 µg/mL (20 ppm) Antimony, Molybdenum, Titanium in H2O/tr. HF.