Notes Go To: Top, Mass spectrum (electron ionization), References Data from NIST Standard Reference Database 69: NIST Chemistry WebBook The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no ...

2013年11月9日 · The LLGHG potential of PFTBA was determined by the following: (i) assessing its properties and environmental fate, (ii) measuring its atmospheric mixing ratio, (iii) measuring its IR absorption cross section and calculating the radiative efficiency (RE), and (iv) estimating the climate impacts of PFTBA.

Perfluorotributylamine (PFTBA) is the standard for the tuning of mass spectrometers with a mass range of up to 1000 amu based on reference peaks [1,2].

Perfluorotributylamine is an organofluorine compound that is tributylamine in which all the hydrogens have been replaced by fluorine atoms. It has a role as a member of greenhouse gas, a solvent and a blood substitute. It is functionally related to a tributylamine.

Perfluorotributylamine (PFTBA), also referred to as FC43, is an organic compound with the chemical formula N (CF2CF2CF2CF3)3. It is a colorless liquid. A molecule of this chemical compound consists of three butyl groups connected to one nitrogen atom, in which all of the hydrogen atoms are replaced with fluorine atoms.

2017年7月21日 · PFTBA Fragmentation pattern Discussions about GC-MS, LC-MS, LC-FTIR, and other "coupled" analytical techniques.

Calibration of a mass spectrometer is usually based on the diagnostic ions of either perfluorotributylamine (PFTBA) or perfluorokerosene (PFK). However the US EPA has introduced m/z abundance calibration for checking the performance of the entire GC-MS system, not merely of the mass spectrometer.

2024年10月19日 · 全氟三丁胺 （Perfluorotributylamine，PFTBA），是一种 分子式 为C 12 F 27 N的 氟化物，是一种极具危害的潜在新型 温室气体。 PFTBA本身在 自然界 中并不存在，但从20世纪中期开始已经被用于各种各样的 电子设备 如 晶体管 和 电容器 等中。 但由于缺乏相应的法律法规控制其生产、使用以及排放，而逐渐进入到环境中。 PFTBA这类潜在的温室气体对环境具有极大的危害性，其危害性主要表现在两个方面： 全球暖化潜势 （GWP）能力强：据 多伦多大 …

2023年4月19日 · PFTBA tuning compound is a higher mass than most analyte peaks. It is 671.096 m/z with a boiling point of 178°C. The act of tuning is a headspace analysis of PFTBA molecules bouncing around the inside of the entire analyzer and it …

2005年1月26日 · On attempting an autotune, abundances for the perfluorotributylamine (PFTBA) standard fragments are unusually low. For example, abundance of the mass 69 fragment is in the 100s range instead of the 100000s range.