工業(yè)用N -甲基二乙醇胺純度測定毛細管柱，液化石油氣，二甲醚，甲縮醛，乙縮醛，乙醇，室內(nèi)空氣，焦爐煤氣，煉廠氣，天然氣，變壓器油，多氯聯(lián)苯，植物油，增塑劑

工業(yè)用N -甲基二乙醇胺純度測定毛細管柱
工業(yè)用N -甲基二乙醇胺純度測定毛細管柱 詳細信息：

浩瀚色譜（山東）應用技術(shù)開發(fā)有限公司建立了一種同時測定N-甲基二乙醇胺(MDEA)脫碳劑中MDEA和哌嗪(PIP)含量的毛細管氣相色譜法,并采用GC-MS對實驗結(jié)果進行了驗證,同時考察了不同色譜柱、溶劑、脫水劑對測定結(jié)果的影響。實驗結(jié)果表明,使用HH-1毛細管色譜柱、氫火焰離子化檢測器,以甲醇為溶劑,試樣不經(jīng)脫水處理,采用外標法定量,即可同時測定MDEA脫碳劑中MDEA和PIP的含量。測定結(jié)果為:MDEA脫碳劑原液中MDEA含量99.0%～99.3%(w),PIP含量10.1%～10.4%(w);MDEA脫碳劑工作液中MDEA含量為41.4%～42.9%(w),PIP含量為7.3%～8.2%(w);MDEA回收率為96.43%～99.98%,PIP回收率為96.64%～102.02%;MDEA檢出限為0.21μg/L,PIP檢出限為0.29μg/L。該方法具有操作簡便、分析速度快、準確、分離效果好、精密度高等特點,能滿足工廠生產(chǎn)質(zhì)檢過程中的分析要求。

名稱：毛細管柱

固定相：100%二甲基聚硅氧烷

規(guī)格：60m*0.53mm*5um

型號：HH-1
應用：工業(yè)用N -甲基二乙醇胺

工業(yè)用N -甲基二乙醇胺純度測定毛細管柱 測試譜圖：





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: