| 1. | Aniline - 2 , 5 - disulfonic acid 4 - fluorocinnamic acid 间氨基苯磺酸 |
| 2. | Water quality - determination of nitrate - spectrophotometric method with phenol disulfonic acid 酚二磺酸分光光度法 |
| 3. | Colour reaction of cobalt with 1 - hydroxyl - 2 - 5 - nitro - 2 - pyridylazo - 8 - aminonaphthalene - 3 , 6 - disulfonic acid 萘二磺酸与钴显色反应的研究 |
| 4. | Study of color reaction of copper with 1 - hydroxy - 2 - 5 - chloro - pyridylazo - 8 - amino - 3 , 6 - naphthalene disulfonic acid 萘二磺酸与铜的显色反应研究 |
| 5. | Standard test method for oxides of nitrogen in gaseous combustion products phenol - disulfonic acid procedures 气态燃烧产物中氮的氧化物的测试方法 |
| 6. | Study on the reaction of new reagent3 - p - methylphenylazo - 4 , 5 - dihydroxyl - 2 , 7 - naphthalene disulfonic acid with strontium and its application 萘二磺酸与锶显色反应的研究及其应用 |
| 7. | Zirconium and zirconium alloys - determination of cobalt content - 1 - nitroso - 2 - hydroxy - 3 . 6 - naphthalene - disulfonic acid sodium salt spectrophotometric method 锆及锆合金化学分析方法亚硝基r盐分光光度法测定钴量 |