氮气吹扫连续流动分析仪法与亚甲基蓝分光光度法测定地下水中的硫化物比较研究

Nitrogen Purging Continuous Flow Analyzer and Methylene Blue Spectrophotometry Comparative Study on Determination of Sulfide in Groundwater

摘要: 本文采用氮气吹扫连续流动分析仪法来测定地下水中硫化物，并与采用亚甲基蓝分光光度法的测定结果进行对比。根据两种方法测定的空白样、质控样、实样数据，比较它们的的标准曲线、检出限、测定下限、精密度、正确度等指标，验证了氮气吹扫连续流动分析仪法是一种高效快捷、稳定可靠、满足相关质控要求的测定地下水硫化物的仪器分析方法。

Abstract: In this paper, nitrogen purging continuous flow analyzer is used to determine sulfide in ground-water, and the results are compared with methylene blue spectrophotometry. According to the two methods of determination of blank sample quality control sample, the sample data, and compare their standard curve, detection limit, determination of the lower limit, precision, accuracy and other indicators, to verify the nitrogen purging method of continuous flow analyzer is an effective and efficient, stable and reliable, satisfy the relevant quality control requirements of instrument analysis method for determination of sulfide of groundwater.