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工作场所空气中硫酰氟的测定填充柱
工作场所空气中硫酰氟的测定填充柱 详细信息：

名称：填充柱
固定相：聚三氟氯乙烯蜡/401
规格：3m*4mm
应用：GBZT 160.33-2004 工作场所空气有毒物质测定 硫化物

硫酰氟是一种优良的广谱熏蒸剂,硫酰氟在我国有生产现场和广泛的使用现场,当前广泛的应用于食品业、农林业、建筑业、出入境检验检疫、外贸和文物等部门熏蒸灭虫、灭鼠.硫酰氟在空气中以蒸汽态存在,因此在作业场所中作业工人主要是通过呼吸道或者通过皮肤接触的途径进入人体.硫酰氟进入人体后对呼吸道有刺激作用,对中枢神经系统有抑制作用,严重者可出现兴奋和强直性抽搐而导致死亡.

浩瀚色谱（山东）应用技术开发有限公司研究了工作场所空气中硫酰氟的直接进样气相色谱测定方法。用本方法对某消毒设备厂的杀虫柜的排放系统进行现场抽样测定，共采集了24个样品，其中只有2个样品中检出了硫酞氟浓度分别是9. 8mg/m3 ,19mg/m3，其余样品中的硫酞氟的浓度均低于本方法的后检出浓度0. 92mg/m。本方法在0--41. 70mg/m'范围内呈线性关系，回归方程式Y = 227.4X+119.6，相关系数r=0.9997;方法的重现性好，不同浓度的相对标准偏差在1.7%^4.9％之间;在以3倍噪声计算所得检出限为0.46ng(进样0.5mL)，低检出浓度为0.92mg/m}。该方法用毛细管色谱柱代替填充柱，操作简便，测定快速，结果准确，重复性好，该方法的低检出浓度远低于中国制定的时间加权平均容许浓度20mg/m，为准确地评价硫酞氟对人体健康的危害提供的检测手段。


工作场所空气中硫酰氟的测定填充柱  测试谱图：




Determination of sulfuryl fluoride in the air of the workplace. Packed column
Packed column for determination of sulfuryl fluoride in the air of workplace Details:

Name: Packed column
Stationary phase: chlorotrifluoroethylene wax/401
Specification: 3m*4mm
Application: GBZT 160.33-2004 Determination of Toxic Substances in Workplace Air Sulfide

Sulfuryl fluoride is an excellent broad-spectrum fumigant. Sulfuryl fluoride has production sites and a wide range of use sites in my country. It is currently widely used in the food industry, agriculture and forestry, construction, entry-exit inspection and quarantine, foreign trade and cultural relics, etc. Department fumigation and extermination of insects and rodents. Sulfuryl fluoride exists in the air as a vapor, so workers in the workplace enter the human body mainly through the respiratory tract or through skin contact. Sulfuryl fluoride enters the human body and has a stimulating effect on the respiratory tract. , It has an inhibitory effect on the central nervous system. In severe cases, excitement and tonic convulsions may occur and cause death.

Haohan Chromatography (Shandong) Applied Technology Development Co., Ltd. has studied the direct injection gas chromatographic method for the determination of sulfuryl fluoride in the air of the workplace. This method was used to carry out on-site sampling and determination of the discharge system of the insecticidal cabinet of a disinfection equipment factory. A total of 24 samples were collected, of which only 2 samples were detected with sulfurphthalein fluoride concentrations of 9.8mg/m3, 19mg/ m3, the concentration of sulfurphthalein fluoride in the remaining samples is lower than the final detection concentration of this method, 0.92mg/m. This method has a linear relationship in the range of 0-41.70mg/m', the regression equation Y = 227.4X+119.6, the correlation coefficient r=0.9997; the method has good reproducibility, and the relative standard deviation of different concentrations is 1.7%^ 4.9%; the detection limit calculated with 3 times the noise is 0.46ng (injection 0.5mL), and the lowest detection concentration is 0.92mg/m}. This method uses capillary chromatographic columns instead of packed columns. It is easy to operate, fast in determination, accurate in results, and reproducible. The minimum detectable concentration of this method is far lower than the time-weighted average allowable concentration of 20 mg/m established in China. It is an accurate assessment of sulfur. Phthalo fluoride provides a reliable detection method for the harm to human health.


Determination of sulfuryl fluoride in the air of the workplace. Packed column Test spectrum: 



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