PQ填充柱在线测定大气中非甲烷总烃

固定相：高分子小球

粒度：60-80目

规格：0.8m*1/8，1.5m*1/8
材质：不锈钢

型号：PQ/Porapak Q

随着现代工业的日益发展,大气污染也日渐加剧。甲醇是现代石油化工行业常用原料之一,在生产过程中,不可避免地会释放到空气中,甲醇属于有毒有害、易燃易爆的物质。非甲烷总烃(NMHC)通常是指除甲烷以外的所有可挥发的碳氢化合物。大气中的NMHC超过一定浓度时,除直接损害人体健。

滕州市浩瀚色谱仪器技术服务有限公司，采用单一进样口六通阀进样,Porapak Q柱和空柱两根填充柱及一个FID检测器的气相色谱法测定无组织大气中甲烷、总烃和非甲烷总烃,测定结果均符合大气污染物综合排放标准中无组织排放监控标准要求。方法低检出浓度分别为甲烷0.04 mg/m3,总烃0.04 mg/m3,非甲烷总烃0.06 mg/m3,甲醇2 mg/m3,且能保持良好的重复性,相对标准偏差均小于2%,满足检测的要求。该方法操作简单、灵敏且分离度好,具有较好的重现性和的准确度。

PQ填充柱在线测定大气中非甲烷总烃 图片：


On-line determination of non-methane total hydrocarbons in the atmosphere by PQ packed column
On-line determination of non-methane total hydrocarbons in the atmosphere by PQ packed column Details:

Stationary phase: polymer pellet

Particle size: 60-80 mesh

Specifications: 0.8m*1/8, 1.5m*1/8
Material: Stainless steel

Model: PQ/Porapak Q

With the development of modern industry, air pollution is also increasing. Methanol is one of the commonly used raw materials in the modern petrochemical industry. In the production process, it is inevitably released into the air. Methanol is a toxic, harmful, flammable and explosive substance. Non-methane total hydrocarbons (NMHC) generally refer to all volatile hydrocarbons other than methane. When the NMHC in the atmosphere exceeds a certain concentration, it directly damages the human health.

Tengzhou Haohao Chromatography Instrument Technology Service Co., Ltd. uses a single inlet six-port valve injection, Porapak Q column and two empty packed columns and a FID detector for gas chromatography to determine methane, total hydrocarbons and unorganized atmosphere. Non-methane total hydrocarbons, the determination results are in line with the requirements of unorganized emission monitoring standards in the comprehensive emission standards for atmospheric pollutants. The minimum detectable concentrations were 0.04 mg/m3 for methane, 0.04 mg/m3 for total hydrocarbons, 0.06 mg/m3 for non-methane, and 2 mg/m3 for methanol, and maintained good repeatability. The relative standard deviations were less than 2%. , to meet the requirements of testing. The method is simple, sensitive and has good resolution, and has good reproducibility and reliable accuracy.

On-line determination of non-methane total hydrocarbons in the atmosphere by PQ packed column