Microhydration of the methylene blue cation in an electrospray ion sourceT. Sato, T. Majima, Kenro Hashimoto, Kouhei Hashimoto, Y. Zama, J. Matsumoto, H. Shiromaru, K. Okuno, H. Tanuma and T. AzumaEur. Phys. J. D, 63 2 (2011) 189-194DOI: https://doi.org/10.1140/epjd/e2010-10526-y