Broadpharm代理商-Methyltetrazine-

Peptide Nucleic Acid Microarrays

A fast and economical procedure for the production of peptide nucleic acid (PNA) microarrays is presented. PNA oligomers are synthesized in a fully automatic manner in 96-well plates using standard Fmoc chemistry. Subsequently, the oligomers

气相色谱法测定依达拉奉合成原料乙酰乙酸乙酯中的丙酮溶剂残留

［摘要］ 目的：用气相色谱法测定依达拉奉合成起始原料乙酰乙酸乙酯中丙酮的残留量。方法：采用固定相为二乙烯苯乙基乙烯苯型高分子多孔小球（直径为0.18 mm～0.25 mm），氮气为载气， 用外标法测定乙酰乙酸乙酯中残留丙酮的含量。结果：该方法在丙酮浓度范围在25 μg/ml～400 μg/ml内呈良好的线性关系，响应曲线相关系数为0.996，平均回收率为96.8%。结论：本法简便，快速、实用，灵敏度高，可有效地用于乙酰乙酸乙酯的质量控制。 ［关键词］ 气相色谱法；依达拉奉乙酰

线粒体荧光探针大全：TMRM，Mitotracker，JC-1

include tetramethylrosamine (T639, Figure 12.23), whose fluorescence contrasts well with that of fluorescein for multicolor applications, and rhodamine 6G 89,96�98 (R634, Figure 12.24), which has an absorption maximum between that of rhodamine 123