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单词 Tris Buffered Saline
释义

Tris Buffered Saline

英语百科

Tris-buffered saline

(重定向自Tris Buffered Saline)

Tris-buffered saline (abbreviated TBS) is a buffer used in some biochemical techniques to maintain the pH within a relatively narrow range. Tris (with HCl) has a slightly alkaline buffering capacity in the 7–9.2 range. Tris has a pKa of 8.06 at 25 °C. The pKa declines approximately 0.03 units per degree Celsius rise in temperature. This can lead to relatively dramatic pH shifts when there are shifts in solution temperature.

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