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Adopting boric acid solution, especially for micro - determination, we should adjust pH to 10.0±0.5 before putting color reagent.

若用硼酸作吸收液, 特别是微量测定, 要将pH值调至10.0±0.5,才能达到溶液显色反应所要求的碱度,确保测定的精密度和结果的准确度.

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