HH-624毛细管 测定十二烷基二甲基苄基氯化铵中的苯残留量

浩瀚色谱（山东）应用技术开发有限公司建立十二烷基二甲基苄基氯化铵中苯的气相色谱分析方法.方法:取2mL样品溶液置顶空瓶中,加入1mL水,密封,采用顶空气相色谱法测定,以HH-624毛细管柱(30m×0.53mm×)为分析柱,FID检测器;程序升温:40℃保留3min,以10℃/min升180℃,保留10min;N2流速:5mL/min;顶空进样:90℃平衡30min.结果:配样时往顶空瓶中加入适量水消除基质效应,苯的回收率为102.38％(n=9,RSD=4.02％),在0.065～0.742ug/mL(r=0.9997)内线性关系良好,定量限为0.065ug/mL,检测限为0.018ug/mL.结论:所建立方法操作简单、准确、线性范围合理,适合十二烷基二甲基苄基氯化铵中苯残留的测定.

名称：毛细管柱
固定相：6 %腈丙基苯基 94 %二甲基聚硅氧烷，
规格：30m*0.53mm*0.3um
型号：HH-624


测定十二烷基二甲基苄基氯化铵中的苯残留量  测试谱图：




Determination of benzene residues in dodecyldimethylbenzylammonium chloride
Determination of benzene residues in dodecyldimethylbenzylammonium chloride Details:

Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has established a gas chromatography method for benzene in dodecyl dimethyl benzyl ammonium chloride. Method: Take 2 mL of sample solution into a headspace bottle, add 1 mL of water, seal it, and use a top Determination by air chromatography, using HH-624 capillary column (30m×0.53mm×) as analytical column, FID detector; temperature program: 40℃ for 3min, 10℃/min to 180℃ for 10min; N2 flow rate : 5mL/min; headspace injection: equilibrate at 90℃ for 30min. Result: Add appropriate amount of water to the headspace bottle to eliminate the matrix effect during sample preparation, the recovery rate of benzene is 102.38% (n=9, RSD=4.02%), The linear relationship is good in the range of 0.065～0.742ug/mL (r=0.9997), the limit of quantification is 0.065ug/mL, and the limit of detection is 0.018ug/mL. Conclusion: The established method is simple to operate, accurate and reliable, and has a reasonable linear range, which is suitable for ten Determination of benzene residues in dialkyldimethylbenzylammonium chloride.







Name: capillary column
Stationary phase: 6% nitrile propylphenyl 94% dimethylpolysiloxane,
Specifications: 30m*0.53mm*0.3um
Model: HH-624


Determination of benzene residues in dodecyldimethylbenzylammonium chloride Test spectrum: