In this work, a detection method using pH and ORP for the endpoint determination of the prepared reaction of N-(oxidiethylene)-2-benzothiazolyl sulfonamide (NOBS) was reported, and the properties of NOBS samples were comprehensively investigated. According to the chemical equation of this reaction, the turning point of pH and ORP was used to determine the endpoint of this reaction. Results showed that the purity and yield of experimental NOBS samples increased to 96.4% and 81.7%, respectively. The FTIR and XRD analysis were also used to investigate the chemical structure and crystal absorption peak of NOBS samples. SEM-EDS spectra confirmed the existence of C, N, O and S elements, and there were no other elements in the products. What is more important, the properties of experimental NOBS samples were better than that of contrast samples. Thus, this paper offers an approach to determine the endpoint of the prepared reaction of NOBS.

本文报道了一种利用 pH 和 ORP 检测制备的 N-(氧化二亚乙基)-2-苯并噻唑磺酰胺 (NOBS) 反应终点的检测方法，并对 NOBS 样品的性质进行了综合研究。根据该反应的化学方程式，用pH和ORP的转折点来确定该反应的终点。结果表明，实验NOBS样品的纯度和收率分别提高到96.4%和81.7%。FTIR 和 XRD 分析也用于研究 NOBS 样品的化学结构和晶体吸收峰。SEM-EDS光谱证实了C、N、O和S元素的存在，产品中没有其他元素。更重要的是，NOBS 实验样品的性能优于对比样品。因此，