流动注射荧光检测法测定肼
Flow injection determination of hydrazine with fluorimetric detection.
作者信息
Ensafi A A, Rezaei B
机构信息
College of Chemistry, Isfahan University of Technology, Isfahan, Iran.
出版信息
Talanta. 1998 Nov;47(3):645-9. doi: 10.1016/s0039-9140(98)00113-1.
A spectrophotometric flow injection system is described for the determination of hydrazine, involving oxidation of hydrazine by thallium(III) with concomitant formation of thallium(I). The optimum analytical conditions have been established. The linear range for hydrazine is 25-500 ng ml(-1) with a detection limit of 20 ng ml(-1). The sampling frequency is 40+/-5 samples h(-1). The relative standard deviation for 100, 250 and 500 ng ml(-1) is 3.5, 2.6 and 1.8%, respectively. The method has been applied to the determination of hydrazine in water.
描述了一种用于测定肼的分光光度流动注射系统，该系统涉及铊（III）氧化肼并伴随生成铊（I）。已确定了最佳分析条件。肼的线性范围为25 - 500 ng ml⁻¹，检测限为20 ng ml⁻¹。采样频率为40±5个样品 h⁻¹。100、250和500 ng ml⁻¹的相对标准偏差分别为3.5%、2.6%和1.8%。该方法已应用于水中肼的测定。
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