| 摘要: |
| 对靛酚兰比色法测定乙醇浸提液中NH+4的方法进行了改进,结果表明,比
色液中NH+4-N的质量浓度为0. 05～3 mg /L时,使用与体积分数为95%的乙醇体积相同
的0. 1 g /L硝普钠溶液催化剂,可获得良好效果。 |
| 关键词: 乙醇 NH+4 靛酚兰比色法 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金资助项目(49901009)，西北农业大学青年基金资助项目 |
|
| Improvement of the indophenolblue colourimetric method for determination of NH+4 in ethyl alcohol |
|
W,W and Z,W,W and Z,W,W and Z
|
| Abstract: |
| NH+4 concentration in ethyl alcohol can be determined by improved indophenol blue colorimetric method,with which when NH+4-N concentration range is between 0. 05-3 mg/L, and the 0. 1 g/L sodium nitropyusside is used as catalyst, its volume is equal to that of 95% ethyl alcohol in determ ining solution. |
| Key words: ethyl alcohol NH+4 indophenol blue colorimetric method |
