a mass spectrometer that produces a graphical representation of the mass spectrum

the variation of the roasted green tea aroma during tea processing was studied by gas chromatography and mass spectrograph (gc/ms).

采用gc/ms分析方法研究了在制过程中炒青绿茶香气的变化规律。

thereinto ion trap mass spectrograph is a new development of the technology, which can do multi-stage ms analysis, and do useful to a qualitative analysis of complex compound.

其中离子阱质谱是刚刚发展起来的质谱技术，它能够做多级质谱分析，有助于复杂化合物的定性。

the product was purified and characterized by gas chromatography, mass spectrograph and infrared spectroscopy.

同时对产物用红外光谱、质谱及气相色谱分析进行了表征。

instructions of time of flight mass spectrograph and quadrupole mass spectrograph are given, and the scheme of dynamic me…

对上述两种质谱仪器的原理进行了介绍 ，提出了动态检测的系统方案。

the application of mass spectrograph to the amylose structure analysis was reviewed.

谱 技术在多糖结构测定中的应用进行论述。

the structure and function of dac7714 is introduced, and its application in the mass spectrograph based on fpga is also given.

介绍了dac7714的结构、功能及其在质谱仪器测控模块中基于fpga的应用。

a new dynamic measuring method of exhaust gas from internal combustion engines by using a mass spectrograph is reported.

针对内燃机废气排放的动态检测，介绍了一种利用质谱仪进行检测的方法。

the application of mass spectrograph to the amylose structure analysis was reviewed.

就质谱技术在多糖结构测定中的应用进行论述。