| 应用 |
分析测定硼酸、硼酸盐、锗、钴、镍、铜和稀土金属，检验铝、钙和镁。
Chromotrope 2B along with Chromotrope 2R, was used to give a highly colored radical anion, during the spectrophotometric determination of cephalosporins (cephadroxil (I), cephalexin (II) and cephradine (III)) in pharmaceutical products. It may be immobilized on AG 1-X8 ion exchange resin, used in flame atomic absorption spectrometry and inductively coupled plasma mass spectrometry (ICP-MS), done for the on-line preconcentration and determination of aluminium. |
| 别名 |
变色酸2B ;变色素2B,对硝基苯偶氮变色酸钠,4,5-二羟基-3-[(4-硝基苯基)偶氮-]-2,7-萘二磺酸二钠盐,酸性红176；对硝基苯偶氮变色酸 二钠盐;2-(4-Nitrophenylazo)chromotropic acid disodium salt
Acid Red 176
4,5-Dihydroxy-3-(p-nitrophenylazo)-2,7-naphthalenedisulfonic acid, disodium salt
C.I. 16575 |
