The phenolic compound sampling tube is a closed sampling tube with two ends. The front end of the sampling tube has a front end score, and the back end of the sampling tube has a back end score. XAD \u2011 7 resin layer is filled in the packing area of sampling pipe in the middle, and the protruding solvent filling area is in the back. The middle part of the joint between the rinsing solvent filling area and the back end of the sampling tube is scored. XAD \u2011 7 layer is divided into adjacent front and rear XAD \u2011 7 resin layers, and there is a middle glass wool layer between them. Two layers of XAD \u2011 7 are respectively provided with front and rear glass wool layers. There is a front glass fiber filter membrane in front of the front glass cotton layer. The outer side of the layer structure is fixed by V-shaped metal wire. XAD \u2011 7 can realize the effective enrichment of phenolic compounds in ambient air. It is convenient to melt and carry the two ends of the sampling tube. The sampling tube is broken off along the front and rear marks of the sampling tube in the field, and the sampling tube is collected. The washing solvent filling area is added to facilitate the preparation and monitoring of laboratory samples. The glass material has good pollution resistance.
【技术实现步骤摘要】
酚类化合物采样管
本技术涉及环境监测环境空气样品采集
,具体地说是酚类化合物采样管。
技术介绍
现有的酚类化合物采样管为玻璃材质,两端未做封口,采用聚四氟乙烯帽密封。内部填充物为XAD-7树脂(40~60目),可以实现酚类化合物的采集,但未含有淋洗溶剂填充管部分,采样管带回实验室分析时,需要向采样管B端缓缓加入5ml甲醇淋洗液,淋洗液加入时操作困难,易造成淋洗液的溢出,不能实现对采样管的有效淋洗。由于采样前采样管两端未封口,如两端的聚四氟乙烯帽密封不严,会造成采样管的污染。因此,酚类采样管在实现酚类化合物采样的同时,应该兼具易于保存、方便实验室试样制备的特点。
技术实现思路
本技术的目的是针对现有技术的缺陷,提供是酚类化合物采样管,专用于环境空气酚类化合物采样和实验室分析。采用的技术方案是:酚类化合物采样管,包括两端封闭的采样管。其技术要点在于:采样管的前端端部有前端刻痕。采样管的后端端部有后端刻痕。采样管中部为采样管填料区,填充有XAD-7树脂层。采样管填料区后 ...
【技术保护点】
1.酚类化合物采样管,包括两端封闭的采样管(10),其特征在于:/n采样管的前端(8)端部有前端刻痕(9);采样管的后端(7)端部有后端刻痕(14);/n采样管(10)中部为采样管填料区,填充有XAD-7树脂层;/n采样管填料区后端为凸出的淋洗溶剂填充区(6)。/n
【技术特征摘要】
1.酚类化合物采样管,包括两端封闭的采样管(10),其特征在于:
采样管的前端(8)端部有前端刻痕(9);采样管的后端(7)端部有后端刻痕(14);
采样管(10)中部为采样管填料区,填充有XAD-7树脂层;
采样管填料区后端为凸出的淋洗溶剂填充区(6)。
2.根据权利要求1所述的酚类化合物采样管,其特征在于:淋洗溶剂填充区(6)和采样管的后端(7)连接处设有中部刻痕(15);中部刻痕(15)位于后端刻痕(14)前侧。
3.根据权利要求1所述的酚类化合物采样管,其特征在于:
XAD-7树脂层分为相邻的前XAD-7树脂层(2)和后XAD-7树脂层(3)。
4.根据权利要求3所述的酚类化合物采样管,其特征在于:
前XAD-7树脂层(2)质量为100mg,目数为40-60目;
后XAD-7树脂层(3)质量为75mg,目数为40-60目。
5.根据权利要求3所述的酚类化合物采样管,其特征在于:
相邻的前...
【专利技术属性】
技术研发人员:关屏,赵丽娟,彭跃,邓万丽,刘枢,张见昕,杨洪岩,刘畅,东明,
申请(专利权)人:关屏,
类型:新型
国别省市:辽宁;21
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。