微颗粒或称乳胶珠可用于各种应用，如： 电子显微镜术细胞计数仪校准免疫诊断学，特别是乳胶凝集测试和吞噬作用研究。.应用： 微颗粒或称乳胶珠常被称为聚苯乙烯微颗粒，是带负电荷的胶体颗粒。微颗粒是在受控条件下通过苯乙烯的聚合反应生产。反应的有利环境诱导了结合态珠的自发形成。微颗粒或称乳胶珠是以含聚合物颗粒的水溶液的形式供应。聚苯乙烯′在589纳米下的折射率是1.5905 ，480纳米下是1.602。 Micro Particles or Latex Beads, commonly known as polystyrene microparticles, are negatively charged colloidal particles. The microparticles are produced through a polymerization reaction of styrene under controlled conditions. The conducive environment of the reaction induces spontaneous coalescent bead formation. Micro Particles or Latex beads are supplied in aqueous solutions composed of polymer particles with water. Polystyrene′s refractive index at 589 nm is 1.5905 and 1.602 at 486 nm. Application: Micro Particles or Latex Beads is used for a wide variety of applications like: Electron Microscopy. Cell Counter Calibration. Immunodiagnostics, especially for latex agglutination tests, and Phagocytosis Research.