Is holmium oxide suitable for absorbance accuracy qualification – FAQ

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ARTICLES, APPNOTES, FAQ (9184)
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August 30, 2012
Bill Ciccone

ARTICLES, APPNOTES, FAQ / Frequently Asked Questions?? / HPLC Qualification / Qualification FAQ / Qualification Information / Qualification Tech Information / UV-vis Qualification

No, the holmium oxide calibration standard cat# PQA-HOX-01 is quite variable in its absorbance and is intended as a wavelength accuracy standard only.

The appropriate item for this purpose is the 0.06000 mg/mL potassium dichromate solution, which is Solution #3 in the current UV-vis kit. This is the basis of the current EP regulations, and it is widely used both in the US and internationally. The reference solution will also be needed. This item is not currently sold separately apart from the Kit.

The NIST specifications for holmium oxide can be found in the attached document. Also attached is the Instruction Manual for the PQ Qualification Kit™.

Click HERE for qualification and calibration kit ordering information and pictures.

Attachments:

JPCRD 34-102005-Travis pdf Download File
UV-vis calibration kit instructions 1_05 pdf Download File

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