نتایج جستجو برای: extraction column

تعداد نتایج: 235822  

2008
Karine Jacq

A fast SPE-GC-ECD method for the analysis of PCBs in waste oil was developed. A complete profi le was obtained following SPE with a 12 minute GC run-time using a modular accelerated column heater (MACH). Full automation of the sample preparation and analysis (except sample weigh-in) enables a daily throughput of 100 samples. A wide range of concentrations can be determined using a dedicated col...

2013
Sheng-Fang Huang Hao-Yu Chao Pan-Fu Kao Wei-Chih Shen Yu-Hsiang Chou Shu-Hsin Liu

Bone extraction and division can enhance the accuracy of diagnoses based on whole-body bone SPECT data. This study developed a method for using conventional SPECT for automatic recognition of the vertebral column. A novel feature of the proposed approach is a novel "bone graph" image description method that represents the connectivity between these image regions to facilitate manipulation of mo...

2011
Moutasem JARADAT Menwer ATTARAKIH Hans-Jörg BART

A bivariate population balance model (the base of LLECMOD program) for the dynamic simulation of liquid extraction columns is extended to simulate pulsed and sieve extraction columns. The model is programmed using visual digital FORTRAN and then integrated into the LLECMOD program. In addition pulsed and sieve tray columns, LLECMOD simulates stirred two types of agitated columns (RDC & Kühni). ...

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