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My PMA or PMAxx™ was accidentally exposed to light. Is it ruined?

PMA and PMAxx™ dyes are very sensitive to light. Light exposure, even ambient room light, causes a chemical change in the dye molecule. Therefore we recommend that vials of PMA or PMAxx™ dyes only be opened in darkened rooms or very dim light. We always suggest that you perform a small test experiment if you are concerned that a dye may have lost activity.

Category: PMA and PMAxx™ for viability PCR

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