Glutamine-selective membrane electrode that uses living bacterial cells.
A novel bioselective membrane electrode for L-glutamine has been constructed by coupling living bacteria of the strain Sarcina flava to a potentiometric ammonia gas sensor. Tests in aqueous standards and human serum show that the electrode combines excellent sensitivity and selectivity with rapid response and a useful lifetime of at least 2 weeks.
D000641:Ammonia / Q000378:metabolism; D002462:Cell Membrane / Q000502:physiology; D004566:Electrodes; D005973:Glutamine / Q000032:analysis*; D006801:Humans; D008564:Membrane Potentials; D011199:Potentiometry / Q000295:instrumentation*; D012505:Sarcina / Q000378:metabolism
D005973:Glutamine; D000641:Ammonia