neutral sulfite method 中性亚硫酸盐法
neutral sodium sulfite method 中性亚硫酸钠法
In this paper a potentiometric titration was used to improve the neutral sodium sulfite method for determining the content of formaldehyde, and the accuracy and influential factors were discussed.
采用电位滴定法改进了测定甲醛含量的中性亚硫酸钠法，并对其准确度和影响因素进行了探讨。
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