( APHA 1998) Distillation method or Montgomery method, 1962
Among them which is suitable for rapid detection of Total volatile fatty acid produced during acdiogenic fermentation of waste water.
GC is the best method. But it would be better to use it to find the individual components of VFA produced than a regular analysis method.
It would be helpful if somebody could clear my confusion.
Hi,
we evaluate the concentration of organic acids (acetic acid, butyric acid, acetic acid, formic acid, lactic acid) through HPLC analysis, using Shimadzu equipped with RID detector and a SUPELCOGEL H column (25 cm x 4.6 mm, from Supelco) or through GC analysis, using a Shimadzu GC-17A equipped with a FID detector and a capillary column with a PEG stationary phase (BP20, 30 m by 0.32 mm i.d., 0.25 ìm film thickness, from SGE).
Sincerely,
gaetano
Hi Jaya
How good do you want to have your accuracy? Are you looking for a precise analysis or a global method for quick measurements?
GC is the most reliable analysis, you have possibilities to titrate free acids with capacitive methods, like conductometry or simpler standard methods like "value for saponification" http://www.freestd.us/soft4/2158089.htm
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