An improved method for the synthesis of 3,7 - dinitro - 1,3 , 5,7 - tetraazabicyclo [ 3.3.1 ] nonane ( 3, DPT ) from 1 was proposed.
改进了由亚甲基二硝胺合成3,7 - 二硝基 - 1,3, 5, 7-四氮杂 [ 3.3.1 ] 壬烷 ( DPT ) 的方法.
The amino acids in alkalescence were derivatized with 2,4 - dinitro - fluorobenzene ( DNFB ) .
以2,4-二硝基 氟苯 为衍生化试剂,将氨基酸在碱性条件下衍生化,然后直接进样进行高效液相色谱测定.
The 2,6 dipicrylamino 3,5 dinitro pyridine ( PYX ) pureness reference material had been certificated by potentiometric method.
用电位滴定法对2,6-双(苦氨基)-3,5-二硝基吡啶 ( PYX ) 标准物质的纯度进行测定.