CAJ | 학술논문

以乙二醛和邻氨基苯酚合成的乙二醛缩-双邻氨基苯酚（以下简称GBH）为中性载体，将其与碳粉混合，以液体石蜡为粘合剂，制备了新型的铬（Ⅲ）离子选择性电极。电极对C-的能斯特响应浓度范围为4．00×10^-6～1．00×10^-2mol／L，斜率为19．70mV／dec（25℃），检测下限为1．26×10^-6mol／L。电极的响应时间小于20s，pH使用范围广（3．20—5．60），稳定性好，使用寿命长。在选定的条件下，考察了10余种离子的干扰情况，结果显示，电极对Cr3＋具有较好的选择性。利用该离子选择性电极对工业废水中的Cr3＋进行测定，结果令人满意。
이을이철화린안기분분합성적을이철축-쌍린안기분분（이하간칭GBH）위중성재체，장기여탄분혼합，이액체석사위점합제，제비료신형적락（Ⅲ）리자선택성전겁。전겁대C-적능사특향응농도범위위4．00×10^-6～1．00×10^-2mol／L，사솔위19．70mV／dec（25℃），검측하한위1．26×10^-6mol／L。전겁적향응시간소우20s，pH사용범위엄（3．20—5．60），은정성호，사용수명장。재선정적조건하，고찰료10여충리자적간우정황，결과현시，전겁대Cr3＋구유교호적선택성。이용해리자선택성전겁대공업폐수중적Cr3＋진행측정，결과령인만의。
A sensitive film of carbon paste doped with glyoxal-bis-hydroxyanil as a carrier was prepared for construction of Cr（m）-selective electrode. The electrode exhibts Nemstian response to Cr（lll） over a range of 4.00 × 10^-6- 1.00 × 10^-2 mol/L, with a slope of 19.70 mV per decade and a detection limit of 1.26 × 10^-6 mol/L. The response time of the electrode is less than 20 s. The potential of this electrode is independent of pH in the range of 3.20-5.60. It also exhibits good selectivity for Cr （III） over a wide variety of metal ions. The electrode has been used to determine the chromium contents in the wastewater, and the result is excellent.