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Buffers are aqueous solutions or reagents that contain mixtures of weak acids and their conjugate bases that help mixtures and solutions resist changes in pH when exposed to stronger acids and bases. Buffers allow solutions to maintain a constant pH and can be used in many chemical and biological systems. Spex offers high-quality buffer solutions with low levels of impurities and consistent lot-to-lot quality.

Reagents Brochure
Certified pH Buffers and Conductivity Standards Brochure


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