HH-1 工业用N -甲基二乙醇胺纯度测定毛细管柱

工业用N -甲基二乙醇胺纯度测定毛细管柱，液化石油气，二甲醚，甲缩醛，乙缩醛，乙醇，室内空气，焦炉煤气，炼厂气，天然气，变压器油，多氯联苯，植物油，增塑剂

工业用N -甲基二乙醇胺纯度测定毛细管柱
工业用N -甲基二乙醇胺纯度测定毛细管柱 详细信息：

浩瀚色谱（山东）应用技术开发有限公司建立了一种同时测定N-甲基二乙醇胺(MDEA)脱碳剂中MDEA和哌嗪(PIP)含量的毛细管气相色谱法,并采用GC-MS对实验结果进行了验证,同时考察了不同色谱柱、溶剂、脱水剂对测定结果的影响。实验结果表明,使用HH-1毛细管色谱柱、氢火焰离子化检测器,以甲醇为溶剂,试样不经脱水处理,采用外标法定量,即可同时测定MDEA脱碳剂中MDEA和PIP的含量。测定结果为:MDEA脱碳剂原液中MDEA含量99.0%～99.3%(w),PIP含量10.1%～10.4%(w);MDEA脱碳剂工作液中MDEA含量为41.4%～42.9%(w),PIP含量为7.3%～8.2%(w);MDEA回收率为96.43%～99.98%,PIP回收率为96.64%～102.02%;MDEA检出限为0.21μg/L,PIP检出限为0.29μg/L。该方法具有操作简便、分析速度快、准确、分离效果好、精密度高等特点,能满足工厂生产质检过程中的分析要求。

名称：毛细管柱

固定相：100%二甲基聚硅氧烷

规格：60m*0.53mm*5um

型号：HH-1
应用：工业用N -甲基二乙醇胺

工业用N -甲基二乙醇胺纯度测定毛细管柱 测试谱图：





Determination of purity of N - methyldiethanolamine for industrial use Capillary column

Details of capillary column for purity determination of N - methyldiethanolamine for industrial use:



Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has established a capillary gas chromatography method for the simultaneous determination of MDEA and piperazine (PIP) in N-methyldiethanolamine (MDEA) decarburizer. The experimental results were verified by GC-MS, and the effects of different chromatographic columns, solvents, and dehydrating agents on the determination results were investigated. The experimental results show that the content of MDEA and PIP in MDEA decarburizer can be determined simultaneously by using HH-1 capillary column, hydrogen flame ionization detector, methanol as solvent, sample without dehydration and external standard method for quantification. The determination results are as follows: the MDEA content in MDEA decarburizer stock solution is 99.0%~99.3% (w), and the PIP content is 10.1%~10.4% (w); The MDEA content in the working solution of MDEA decarburizer is 41.4%~42.9% (w), and the PIP content is 7.3%~8.2% (w); The recovery rate of MDEA is 96.43%~99.98%, and that of PIP is 96.64%~102.02%; MDEA detection limit is 0.21 μ G/L, PIP detection limit is 0.29 μ g/L。 This method has the characteristics of simple operation, fast analysis speed, accuracy, good separation effect and high precision, which can meet the analysis requirements in the factory production and quality inspection process.






Name: capillary column



Stationary phase: 100% dimethylpolysiloxane



Specification: 60m * 0.53mm * 5um



Model: HH-1

Application: N - methyldiethanolamine for industrial use




Capillary column test spectrogram for purity determination of N - methyldiethanolamine for industrial use: