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Monitoring and optimizing the gas-carburizing process for drill bits

✍ Scribed by M. M. Fetisova; Yu. G. Senechko; S. I. Kantor; T. P. Kovrova


Publisher
Springer
Year
1979
Tongue
English
Weight
336 KB
Volume
14
Category
Article
ISSN
1573-885X

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An innovative online VFA monitoring syst
✍ Kanokwan Boe; Damien John Batstone; Irini Angelidaki πŸ“‚ Article πŸ“… 2007 πŸ› John Wiley and Sons 🌐 English βš– 334 KB

## Abstract A new method for online measurement of volatile fatty acids (VFA) in anerobic digesters has been developed based on headspace gas chromatography (HSGC). The method applies ex situ VFA stripping with variable headspace volume and gas analysis by gas chromatography‐flame ionization detect