工業(yè)甲胺及水溶液測(cè)定專用毛細(xì)管柱，液化石油氣，二甲醚，甲縮醛，乙縮醛，乙醇，室內(nèi)空氣，焦?fàn)t煤氣，煉廠氣，天然氣，變壓器油，多氯聯(lián)苯，植物油，增塑劑，塑化劑，消毒劑，乙縮醛

工業(yè)甲胺及水溶液測(cè)定專用毛細(xì)管柱
工業(yè)甲胺及水溶液測(cè)定專用毛細(xì)管柱 詳細(xì)信息：

名稱：石英毛細(xì)管柱
固定相：專用
規(guī)格：60m*0.32mm
型號(hào)：HH-Tamine60
應(yīng)用：工業(yè)甲胺，二甲胺，三甲胺的測(cè)定

甲胺是化學(xué)工業(yè)基本的有機(jī)原料，廣泛應(yīng)用于農(nóng)藥、化纖和國(guó)防工業(yè)等方面。有關(guān)甲胺水溶液的分析方法，國(guó)內(nèi)已有標(biāo)準(zhǔn)可循。而對(duì)于無水甲胺，由于樣品的一沸點(diǎn)較低，在常溫下易汽化，使之不能用標(biāo)樣來校正。

浩瀚色譜（山東）應(yīng)用技術(shù)開發(fā)有限公司建立工作場(chǎng)所空氣中一甲胺,二甲胺的頂空氣相色譜測(cè)定方法。方法酸性吸收液采集空氣中的一甲胺、二甲胺,堿溶液中和后頂空進(jìn)樣氣相色譜,經(jīng)HH-Tamine60毛細(xì)管色譜柱分離,氫焰離子化檢測(cè)器測(cè)定。結(jié)果一甲胺濃度范圍為11.70～93.54μg/ml時(shí),標(biāo)準(zhǔn)曲線回歸方程為Y=0.458 1X-1.034 5(r=0.999 0);二甲胺濃度范圍為10.59～84.74μg/ml時(shí),標(biāo)準(zhǔn)曲線的回歸方程為Y=0.864 5X-2.206(r=0.999 1)。一甲胺方法檢出限為1.65μg/ml,低檢出濃度為0.55 mg/m3(以采集15 L空氣樣品計(jì));二甲胺檢出限為1.54μg/ml,低檢出濃度為0.32 mg/m3(以采集24 L空氣樣品計(jì))。樣品于4℃冰箱內(nèi)可穩(wěn)定保存5 d。結(jié)論該方法可同時(shí)測(cè)定工作場(chǎng)所空氣中一甲胺和二甲胺濃度。

工業(yè)甲胺及水溶液測(cè)定專用毛細(xì)管柱  測(cè)試譜圖：



Special capillary column for industrial methylamine and aqueous solution determination
Special capillary column for industrial methylamine and aqueous solution determination Details:

Name: Quartz Capillary Column
Stationary phase: dedicated
Specification: 60m*0.32mm
Model: HH-Tamine60
Application: Determination of industrial methylamine, dimethylamine, trimethylamine

Methylamine is a basic organic raw material in the chemical industry and is widely used in pesticides, chemical fibers and defense industries. Regarding the analytical method of methylamine aqueous solution, there are already domestic standards to follow. For anhydrous methylamine, because the first boiling point of the sample is low, it is easy to vaporize at room temperature, making it impossible to calibrate with standard samples.

Haohan Chromatography (Shandong) Applied Technology Development Co., Ltd. established a headspace gas chromatography method for the determination of monomethylamine and dimethylamine in the air of workplaces. Methods The monomethylamine and dimethylamine in the air were collected from the acidic absorption solution, neutralized by the alkaline solution, and then sampled in the headspace by gas chromatography. They were separated by a HH-Tamine60 capillary column and measured by a hydrogen flame ionization detector. Results When the concentration range of monomethylamine was 11.70～93.54μg/ml, the regression equation of the standard curve was Y=0.458 1X-1.034 5(r=0.999 0); when the concentration range of dimethylamine was 10.59～84.74μg/ml, the standard curve The regression equation is Y=0.864 5X-2.206 (r=0.999 1). The detection limit of the monomethylamine method is 1.65 μg/ml, and the minimum detection concentration is 0.55 mg/m3 (based on the collection of 15 L air samples); the detection limit of dimethylamine is 1.54 μg/ml, and the minimum detection concentration is 0.32 mg/m3 (calculated based on the collection of 24 L air samples). The samples can be stored stably for 5 days in a refrigerator at 4°C. Conclusion This method can simultaneously determine the concentration of monomethylamine and dimethylamine in the air of the workplace.

Special capillary column for industrial methylamine and aqueous solution determination Test spectrum: