Liquid Core Waveguide Spectrophotometry for the Sensitive Determination of Nitrite in River Water Samples
Liquid Core Waveguide Spectrophotometry for the Sensitive Determination of Nitrite in River Water Samples
复制标题
DOI：
10.2116/analsci.22.1017
复制
发表时间：
2006-07
影响因子：
1.6
通讯作者：
H. Takiguchi;A. Tsubata;M. Miyata;T. Odake;H. Hotta;T. Umemura;K. Tsunoda
中科院分区：
文献类型：
--
作者：
H. Takiguchi;A. Tsubata;M. Miyata;T. Odake;H. Hotta;T. Umemura;K. Tsunoda
采用80 cm Teflon AF-1600毛细管（2，2-双三氟甲基-4，5-二氟-1，3-间二氧杂环戊烯/间二氧杂环戊烯），以液芯波导分光光度检测器建立了流动注射分析系统。将该系统应用于河水样品中亚硝酸根离子的测定。亚硝酸盐的检测下限为2.1 nmol dm^-3（以NO_2^-计为0.1 ng dm^-3），在0.21 μmol dm^-3时，测量的相对标准偏差通常为0.56%（n = 5）。
A flow injection analysis system was built with a liquid core waveguide spectrophotometric detector using an 80 cm Teflon AF-1600 capillary tube (2,2-bistrifluoromethyl-4,5-difluoro-1,3-dioxole/tetrafluoroethylene). The system was applied to determine nitrite ion in river water samples. The lower limit of detection for nitrite was 2.1 nmol dm^–3 (0.1 ng dm^–3 as NO_2^–) and the relative standard deviation of measurements was typically 0.56% ( n = 5) at 0.21 μmol dm^–3.