CAJ | 학술논문

在传统硅钼蓝分光光度法测定水中二氧化硅的基础上，研究了不同还原剂种类对硅钼蓝显色法的影响。通过比较，确定了抗坏血酸为最适宜的还原剂种类。通过优化实验条件，分别探讨了还原剂用量、酸度、显色时间对反应的影响，建立了新的标准曲线，其线性相关系数达到0.9999。该方法的加标回收率为98.55％，相对标准偏差为0.67％，具有稳定和重现性好的特点，可对水中二氧化硅检测提供准确数据。
재전통규목람분광광도법측정수중이양화규적기출상，연구료불동환원제충류대규목람현색법적영향。통과비교，학정료항배혈산위최괄의적환원제충류。통과우화실험조건，분별탐토료환원제용량、산도、현색시간대반응적영향，건립료신적표준곡선，기선성상관계수체도0.9999。해방법적가표회수솔위98.55％，상대표준편차위0.67％，구유은정화중현성호적특점，가대수중이양화규검측제공준학수거。
Based on the determination of silicon dioxide in water by traditional silico‐molybdenum blue spectrophotometry , the effect of different kinds of reducing agents on silico‐molybdenum blue spectrophotometry was studied . By comparison , ascorbic acid was determined as the optimum reducing agent .At the same time ,the effects of the reductant quantity ,acidity and col‐oration time were discussed ,and the new standard curve was also established ,in which the correlation coefficiency was 0.9999 .According to the research ,the recovery was 98.55% ,and the relative standard deviation was 0.67 , which had good stability and reproducibility . Therefore ,the improved method was suitable for the detection of silica in water .