摘要
为了寻找适合博物馆检测要求的NO2 测定方法 ,选择分子筛为填充担体 ,TEA与DEA为复配吸收剂 ,采样管柱长为 5cm ,管径为 5 .5mm ,采样流速为 10 0 16 0ml/min ,建立了固体主动采样法。经与常规溶液法和仪器法测定结果比较 ,三种采样法测得的NO2 浓度在精密度和总体均值上均无显著性差异 ,具有高度相关性和可比性。它们之间的回归直线关系存在 ,可用于环境现场二氧化氮的检测。
This paper presents a method of measuring NO 2 in air by solid absorbent sampling.The main component of absorbent is TEA and DEA,the absorbent tube size is 5cm×5.5cm and the rate of 100160mL/min is selected.The solid absorbent sampling can prevent liquid spill and color change which exist in liquid absorbent sampling.According to the comparative test of the solid absorbent sampling with classical liquid absorbent sampling and special instrument sampling,the results are consistent with their averages within the precision.This method is well suitable for detecting NO 2 in some region short of manpower and financial resource.
出处
《文物保护与考古科学》
2004年第4期11-16,共6页
Sciences of Conservation and Archaeology
基金
国家文物局课题 (2 0 0 113 )一部分
关键词
二氧化氮检测
固体主动采样法
Nitrogen dioxide testing
Solid absorbent sampling
