TY - GEN AU - LEDERER,M TI - The paper chromatography of pH indicators SN - 0036-8075 PY - 2004///0215 KW - Chromatography KW - Chromatography, Paper KW - Humans KW - Indicators and Reagents N1 - Publication Type: Journal Article UR - https://doi.org/10.1126/science.112.2913.504 ER -