Determining phoretic mobilities with Onsager’s reciprocal relations: Electro- and thermophoresis revisited Jérôme Burelbach and Holger Stark Eur. Phys. J. E, 42 1 (2019) 4 Published online: 10 January 2019 DOI: 10.1140/epje/i2019-11769-y