产品介绍
That, when the fire smoke is the main reason of causing death. According to statistics, in building fire, more than 70% of the deaths were caused by inhaling smoke choked to death. Currently people to know more and be confirmed poisonous gas composition of the staff a large number of casualties is CO, people are given enough attention. CO2 as the main products of combustion of carbon materials, despite its lower toxicity, but when its concentration.
xiangying eagle analysis technology co., LTD. Use XingyingGC7990plus gas chromatography to detect black PMMA combustion flue gas constants of trace carbon monoxide, carbon dioxide and the establishment of a double pneumatic double detector testing method. Constant temperature of chromatographic column, through the quantitative tube sample, Poropak T chromatographic column separation, e.g. by switching valve and column counter blowing technology makes the different components into 5 a molecular sieve chromatography column and Poropak N respectively in the chromatographic column. 5 a molecular sieve chromatography column for separation of carbon monoxide, after Ni catalyst methanation transformation with FID detector measurement; Poropak N chromatographic column separation after carbon dioxide into the conductance detector is determined. The peak area method is adopted to establish standard curve, carbon monoxide and carbon dioxide in the linear correlation coefficient of 0.999 9 and 0.999 6 respectively. Determination with the standard gas, the relative error of the measured value and standard value is less than 2%, the determination results, the relative standard deviation less than 1%. This method can be used for the analysis of the smoke toxicity.
火灾时产生的烟气是致人死亡的主要原因。据统计,在建筑火灾中,70%以上的死亡者都是因为吸入有毒烟气引起窒息而死亡。目前人们了解较多并被证实造成人员大量伤亡的有毒气体成分是CO,人们对此给予了足够的重视。CO2作为含碳材料的主要燃烧产物,尽管其毒性较小,但当其浓。
滕州市翔鹰分析技术有限公司利用XingyingGC7990plus气相色谱法检测黑色PMMA完全燃烧烟气中的常量二氧化碳和微量一氧化碳,建立了双气路双检测器的检测方法。恒定色谱柱温度,通过定量管进样,Poropak T色谱柱预分离后,采用阀切换及柱反吹技术使不同组分分别流入5A分子筛色谱柱和Poropak N色谱柱中。5A分子筛色谱柱用于分离一氧化碳,经Ni催化甲烷化转化后用FID检测器测定;Poropak N色谱柱分离二氧化碳后进入电导检测器测定。采用峰面积法建立标准曲线,一氧化碳和二氧化碳的线性相关系数分别为0.999 9和0.999 6。用该法测定标准气体,其测定值与标准值的相对误差小于2%,测定结果的相对标准偏差小于1%。该方法可用于烟气毒性的分析。