chemical buffer
[ˈkɛmɪkəl ˈbʌfər]
nounpl: chemical buffers
solução tampão / amortecedor químico
1. A solution containing a weak acid and its conjugate base (or a weak base and its conjugate acid) that resists changes in pH when small amounts of acid or base are added
The laboratory used a phosphate buffer to maintain a stable pH throughout the experiment.
O laboratório usou uma solução tampão de fosfato para manter um pH estável durante todo o experimento.
2. A substance that minimizes fluctuations in pH by neutralizing added acids or bases
Blood acts as a natural chemical buffer to maintain its pH around 7.4.
O sangue atua como um amortecedor químico natural para manter seu pH em torno de 7,4.
Chemical buffers are fundamental concepts in chemistry, biology, and medicine across both Portuguese and English-speaking countries. In Brazil, 'solução tampão' is the standard terminology used in scientific education and research. The term is universally understood in academic and professional contexts without regional variation in meaning.
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