Gas production was measured periodically by the displacement of saturated aqueous sodium chloride in graduate cylinder. The concentration of H2 was determined by gas chromatography (GC 8A; Shimadzu, Kyoto) with a thermal conductivity detector [
Gas production was measured periodically by the displacement of saturated aqueous sodium chloridein graduate cylinder. The concentration of H2 was determined by gas chromatography (GC 8A;Shimadzu, Kyoto) with a thermal conductivity detector [