prov:value
| - In addition, concentration of the buffering agent in these buffer solutions is selected as appropriate from the range of usually 0.1 to 5 M, and preferably 0.6 to 2.5 M. In addition, in this solution, as long as it is the amount for example, sugar, salts such as NaCl, surface-active agent, antiseptic agent, protein, and the like may be contained, within an amount which does not interfere said anti
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