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基于硫离子可渗透通过过氯乙烯处理滤纸,制备了硫离子选择性检测试纸。应用该试纸测定硫化物,能够有效抑制基体成分干扰,其检出限和线性范围分别为38μmol/L和50～2100μmol/L。试纸已应用于河床污泥和鱼塘沉积物中硫化物的测定。
Sulfide selective test strips were prepared based on the permeation of sulfur ions through the perchlorethylene filter paper. The determination of sulfides by this test strip can effectively restrain the interference of matrix components. The detection limits and linear ranges are 38μmol / L and 50 ~ 2100μmol / L, respectively. Test strips have been used for the determination of sulfides in riverbed sludge and fish pond sediments.