Kinetic spectrophotometric determination of titanium(Iv) at'trace level with bromopyrogallol red in ionic/non-ionic surfactant mixed micellar media
| Main Authors: | Xirong Huang, Wenjuan Zhang, Shaofang Son, Lizeng Wang |
|---|---|
| Format: | Article Journal |
| Bahasa: | eng |
| Terbitan: |
, 2002
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/5842898 |
Daftar Isi:
- Key Lab for Colloid and Interface Chemistry of the Education Ministry of China, Shandong University Jinan 250100, P. R. China E-mail : xrhuang@sdu.edu.cn Fax : 86-0531-8565167 Department of Chemistry, Shandong University, Jinan 250100, P. R. China Manuscript received 8 August 2000, revised 19 March 2001, accepted 20 April 2001 TiIV' inhibited the decolourization reaction of bromopyrogallol red (BPR) in a mixed micellar medium composed of cetyltrimethylammonium bromide (CTAB) and nonylphenoxypolyethoxyethanol (OP). Based on the effect, a kinetic spectrophotometric method has been developed for the determination of trace TiIV The method is very sensitive. Under the recommended conditions, the molar absorptivity is as high as 4.0 x 106 dm3 mol-1 cm-1, the highest value ever reported. The limit of detection is as low as 0.2 ng CM-3 .