- 作者: --
- 作者服務機構: Department of Chemistry, University of Balochistan, Quetta, Pakistan
- 中文摘要: An analytical method consisting of flow injection sampling and chemiluminescence detection for the determination of thyroxine hormone is described. It is based on the weak chemiluminescent reaction of KMnO4 - Na2SO3 in acidic medium, which is enhanced by the addition of thyroxine hormone. The chemiluminescence intensity was correlated linearly with concentration of thyroxine in the range of 1.0 ’ 10-7 - 2.0 ’ 10-6 mol L-1 (r2 = 0.9976) with a relative standard deviation (n = 4) in the range of 1.0 – 1.9%. The limit of detection (3s blank) is 5.0 ’ 10-9 mol L-1 with a sample throughput of 180 h-1. The method has been applied to the determination of thyroxine in pharmaceutical preparations and the results are in good agreement with the value reported. Metal and non-metal ions and some organic compounds commonly present in tablets and some amino acids were also studied for thyroxine determination.
- 英文摘要: --
- 中文關鍵字: Flow injection analysis; Acidic potassium permanganate; Sodium sulfite; Chemiluminescence; Thyroxine hormone.
- 英文關鍵字: --