18-crown-6造句

• Synergistic effect of dibenzo - 18 - crown - 6 and resorcarene derivative mixed stationary phase in gas chromatography
  环糊精的合成及其在气相色谱拆分中的应用
• 2 . synthesis and characterization of monomers dibenzo - 14 - crown - 4 , dibenzo - 18 - crown - 6 , dibenzo - 15 - crown - 5 and dinitryl , diamino substituted crown ethers were synthesized
  单体的合成与表征从基础有机原料开始，合成了二苯并? 14 ?冠? 4 、二苯并? 18 ?冠? 6 、二苯并? 15 ?冠? 5及其二硝基、二氨基衍生物。
• This thesis consists of four chapters : ( 1 ) a review ; ( 2 ) study on the optical chemical membrane for detection of lead ion by using 2 - hydroxy - 1 - naphthaldehydene - 8 - aminoquinoline as fluorescence indicator ; ( 3 ) study on the optical chemical membrane for detection of lead ion by using meso - ( 4 - methyloxyphenyl ) porphyrin as fluorescence indicator ; ( 4 ) study on the optical chemical membrane for detection of lead ion by using 2 - methene - benzimidazole monoaza - 18 - crown - 6 as fluorescence indicator . in chapter one , the laboratory method for determination of lead ion , the progresses of chemical sensor for detection of lead ion recently and the introduction of the basic theory , relative merits of sol - gel and its application in optical chemical sensor were involved
  第二章利用有机改性的溶胶-凝胶包埋方式,以2 -羟基- 1 -萘甲醛- 8 -氨基喹啉为荧光指示探针,结合正交实验方法探索了几个重要因素,如加水量、醇硅比、催化剂、添加剂等对成膜性的影响,制备了对水中铅离子有较好响应的传感膜,其线性范围为1 . 0 10 - 7 ~ 5 . 0 10 - 5mol / l ,检测限为3 . 6 10 - 8mol / l 。