作者: T Ma , G Zuazaga
DOI: 10.1021/I560103A035
关键词: Chemistry 、 Nitrogen 、 Kjeldahl method 、 Chromatography 、 Digestion (alchemy)
摘要: … the micro scale, using as indicator a mixture of methyl red and … of the mixed indicator for each pH value, determined by means … cent bromocresol green and 0.1 per cent methyl red (both …