The deionizing and deoxidizing water is required by the methylene blue spectrophotometric method in the new national standard to analyze sulfide in water and waste water.

在新颁国标中，采用亚甲基蓝法测定水和废水中硫化物时，要求用去离子除氧水做为实验用水。

Two new exocyclic ring-fused boron-dipyrromethene (BDP) dyes with benzo crown ether subunit at meso-position were prepared.Their spectroscopic and electrochemical properties were investigated.

本文报道了两种中位为苯并冠醚亚单元取的含稠合外环的硼-二吡咯亚甲基染料的合成、谱和电化学性质。

Thirteen new compounds of the alkyl styryl indoline spirobenzopyrans were synthesized from the condensation of 2-methylene indoline with the designed salicylaldehyde.

利用2-亚甲基吲哚啉和取水杨醛缩合得种新的烷基苯乙烯基吲哚啉螺苯并吡喃。

Hydrogen transfer, protonization and formation of methene bridge are probablely the main reasons for the above structural characters.

氢转移、质子化、亚甲基桥的形成可能是导致这些结构特征的主要原因。

Antioxidative effect of carotenoids on the methylene blue sensitized photoxidation of soybean oil and rapeseed oil was investigated.

采用亚甲基蓝作敏剂，研究了类胡萝卜素在豆油、菜油中的抗油脂敏氧化作用。