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ARTICLES, APPNOTES, FAQ (9289)
- AppNotes Library (1888)
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- Frequently Asked Questions?? (3402)
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Why does the color of the Holmium Oxide solution for HPLC performance qualification look different than before – FAQ

KB Home/ARTICLES, APPNOTES, FAQ / Frequently Asked Questions?? / ARTICLES, APPNOTES, FAQ / Qualification Information / HPLC Qualification / ARTICLES, APPNOTES, FAQ / Frequently Asked Questions?? / Qualification FAQ / ARTICLES, APPNOTES, FAQ / Qualification Information / ARTICLES, APPNOTES, FAQ / HPLC Suggestions and Information / Trouble Shooting Suggestions / Why does the color of the Holmium Oxide solution for HPLC performance qualification look different than before – FAQ

October 12, 2017
Bill Ciccone

KB Home

Frequently Asked Questions?? / HPLC Qualification / Qualification FAQ / Qualification Information / Trouble Shooting Suggestions

The “apparent” color of the solutions that you see depends on the room lighting.

Under fluorescent lights, the solutions may appear bright pink. Under regular outdoor lighting they usually a dull yellow. This is normal as it is a wavelength calibration solution, so it absorbs different light differently.

There is no issue with the product, and it is still very usable.

Click HERE for Holmium Oxide, PQ & HSQ qualification kit ordering information.

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1) Is holmium oxide suitable for absorbance accuracy qualification – FAQ

2) Is the Holmium Oxide Solution intended as a stand alone product or solely as a replacement solution for the HSQ Kit – FAQ

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