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Chemical Stability and Compatibility - Mixing chlorate and perchlorate

 
I am a researcher looking to make a custom standard. I am looking for an appropriate internal standard for quantifying chlorate samples. I currently have access to a chlorate standard (ICCLO31, 1000 ppm) and a perchlorate standard (ICCLO41, 1000 ppm). Both solutions are made in water. Can I mix these two ions into one standard solution for a calibration curve?
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We have created standards containing both of these analytes mixed together in water, and have not observed any issues with incompatibility or long term stability. Specifically, we have observed more than 2 years of chemical stability for both chlorate and perchlorate when mixed with other anions in a water matrix (all concentrations at 100 ug/mL) for a product manufactured using the same formulations of the ICCLO31 and ICCLO41 standards you reference. Therefore, we would anticipate no compatibility or stability issues for creating a mixed ClO3- and ClO4- standard in water.

Posted: 09/02/18 21:53:56

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