ch. 1. Ion exchange-assisted synthesis of polymer stabilized metal nanoparticles / Jorge Macanas. [et al.] -- ch. 2. Ion exchangers for air purification / V.S. Soldatov and E.H. Kosandrovich -- ch. 3. Applications of selective ion exchange for perchlorate removal, recovery, and environmental forensics / Baohua Gu. [et al.] -- ch. 4. Influence of ion exchange resin particle size and size distribution on chromatographic separation in sweetener industries / Tuomo Sainio. [et al.] -- ch. 5. Dual temperature methods of separation and concentration of elements in ion exchange columns / Ruslan Kh. Khamizov, Vladimir A. Ivanov, and Nikolay A. Tikhonov -- ch. 6. Separations by multicomponent ionic systems based on natural and synthetic polycations / Ecaterina Stela Dragan, Maria Valentina Dinu, and Marcela Mihai -- ch. 7. Polymeric-inorganic hybrid ion exchangers preparation, characterization, and environmental applications / Sudipta Sarkar, Prakhar Prakash, and Arup K. SenGupta.