根据国家标准GB10621-2006《食品添加剂液体二氧化碳》的要求,对苯的限量要求≤20ppb,标准方法规定是采用取样3～5mL直接进样法,这就对仪器FID检测器的灵敏度要求较高,而市场上现有国产化仪器,往往因灵敏度达不到要求而无法检测。
浩瀚色谱（山东）应用技术开发有限公司研发痕量气体分析仪及特殊毛细管的色谱柱,直接进样分析检测气体中的痕量苯的方法.通过实验条件的筛选,检测限可达5×10^-9.方法稳定可靠,满足了食品级二氧化碳中的质量控制需求.。
此柱zui大优势：一次进样即可分离：痕量苯，氯乙烯，乙醛，甲醇，环氧乙烷五种成分；此款产品为浩瀚色谱，独树一帜的产品；浩瀚色谱，提供详细的分析方案。
此柱应用实例：安捷伦，岛津，赛默飞，瓦里安，布鲁克，PE
名称：毛细管柱
规格：50m*0.53mm
型号：HH-CO2-50
应用：食品级，液体，药典，二氧化碳中痕量苯及含氧化合物甲醇，乙醛，环氧乙烷和氯乙烯的测定
According to the requirements of the national standard GB10621-2006 "Food Additive Liquid Carbon Dioxide", the limit requirement for benzene is ≤20ppb. The standard method stipulates that the sampling method is to use the direct sampling method of 3~5mL, which requires high sensitivity of the instrument FID detector. However, the existing domestically produced instruments on the market are often unable to detect because the sensitivity is not up to the requirement.
Haohan Chromatography (Shandong) Applied Technology Development Co., Ltd. has developed a trace gas analyzer and a special capillary column, and a direct injection method for detecting trace benzene in the gas. Through the screening of experimental conditions, the detection limit can reach 5×10 ^-9. The method is stable and reliable and meets the quality control requirements in food-grade carbon dioxide.
The biggest advantage of this column: It can be separated in one injection: trace amounts of benzene, vinyl chloride, acetaldehyde, methanol, and ethylene oxide; this product is a unique product of Haohan Chromatography; Haohan Chromatography provides detailed information Analyze the plan.
Application examples of this column: Agilent, Shimadzu, Thermo Fisher, Varian, Brook, PE
Name: Capillary Column
Specification: 50m*0.53mm
Model: HH-CO2-50
Application: Determination of trace amounts of benzene and oxygenated compounds in food grade, liquid, pharmacopoeia, carbon dioxide, methanol, acetaldehyde, ethylene oxide and vinyl chloride
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