图4. DLS测得的调节pH后不同反应时间的有机钆纳米颗粒的粒径.(a) 1 h;(b) 2 h;(c) 3 h;(d) 4 h;(e) 5 h;(f) 6 h;(g)平均粒径随反应时间的变化
Fig.4. The values of Gd-nanoparticles size measured by DLS after adjusting pH for (a) 1 h, (b) 2 h, (c) 3 h, (d) 4 h, (e) 5 h, (f) 6 h; (g) The variation curve of the average particles size with reaction time