HH-Tamine60甲胺專用毛細(xì)管 氣相色譜-質(zhì)譜法測(cè)定艦船艙室大氣中的三甲胺

。

氣相色譜-質(zhì)譜法測(cè)定艦船艙室大氣中的三甲胺  測(cè)試譜圖：




Determination of Trimethylamine in the Atmosphere of Ship Cabins by Gas Chromatography Mass Spectrometry

Details of determination of trimethylamine in the atmosphere of ship cabin by gas chromatography-mass spectrometry:



Name: HH-Tamine60 methylamine special capillary column

Specification: 60m * 0.32mm

Operating temperature: 280 ° C

No.: 20220109001



Trimethylamine is one of the malodorous pollutants that need to be strictly controlled in the atmospheric environment, especially in the indoor environment. During the voyage, the crew members need to be exposed to the cabin environment of the ship for a long time. When the system operation or material use releases trimethylamine, it may cause serious harm to the feeling and health of personnel.




Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has studied the method of determining the content of trimethylamine in the cabin environment of a ship by using Sumar tank sampling gas chromatography/mass spectrometry (GC/MS), and investigated the content of trimethylamine in the cabin of a ship suspected of releasing trimethylamine. Methods Environmental air samples were collected from typical cabins of ships, especially those suspected to have trimethylamine release. A method for the determination of trimethylamine in the ambient air of ship cabins was established by preconcentrator concentration gas chromatography-mass spectrometry. Results By optimizing the column type, column temperature, preconcentration temperature and sample volume, the Suma tank gas chromatography-mass spectrometry can effectively detect the concentration of trimethylamine in the cabin environment of ships. The main instrument parameters are: chromatographic column HH-Tamine60 methylamine special capillary column; Injection port temperature: 180 ℃, no split injection; Column flow rate: 1.4 mL/min; Column temperature: 35 ℃ for 5min, then 5 ℃/min to 150 ℃ for 7min, then 10 ℃/min to 200 ℃ for 4min; The sampling volume of the cold trap concentrator is 400ml; The baking temperature of the primary cold trap is 150 ℃; Baking time 10min; The baking temperature of the secondary cold trap is 220 ℃; Baking time 10min; The three-stage focus baking temperature is 150 ℃; Baking time 10min; Under this condition, the detection limit of trimethylamine in air is 0.8 ug/m~3, the correlation coefficient is>0.9992, and the linear range is 0~10~3 ug/m~3.



Determination of trimethylamine test spectrum in the atmosphere of ship cabin by gas chromatography-mass spectrometry: