Objective: Adding two titrant standard solution volumes affecting acid base double point potentiometric method accuracy are discussed.

目的：探讨两次加入滴定剂标准溶液的体积对酸碱双点电位滴定法准确度的影响。

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This article USES the direct double decomposition method to synthesis zinc gluconate, through adding ethyl alcohol to reduce its watery solution solubility and to obtain its crystal.

采用直接复分解法合成葡萄糖酸锌，通过滴加乙醇降低它在水溶液中的溶解度从而得到它的晶体。

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The measurements were performed using a double-integrating-sphere setup, and the optical parameters were assessed from these measurements using the inverse adding-doubling method(IAD).

实验采用双积分球测量系统以及运用生物组织的反向倍增（IAD）光学模型。

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