试剂7-(2-羧基-4-溴-苯偶氮)-8-羟基喹啉-5-磺酸的合成及其对大豆中钼的光度测定

• Synthesis of 7-(2-carboxy-4-bromo-benzeneazo)-8-hydroxyquinoline-5-sulfonic acid(CBB)and spectrophotometric determination of Mo in foods