Azomethine H Spectrophotometric Method for Determining Boron in Humic Fertilizer is described.
本文介绍采用甲亚胺-H酸分光光度法分析腐植酸类肥料中元素
的方法。
Azomethine H Spectrophotometric Method for Determining Boron in Humic Fertilizer is described.
本文介绍采用甲亚胺-H酸分光光度法分析腐植酸类肥料中元素
的方法。
This is a summery of the synthesis, structure and reaction of borazine.
对环氮烷的合成、结构和反应进行
综述。
It was asserted that the ore is mainly composed of minerals of kurnakovite, inderite and pinnoite.
该
镁矿的主要矿物组成
库水
镁石、多水
镁石及
镁石。
By fuming with sulfuric-phosphoric acid mixture the residual hydrofluoride was then expelled,and boron was finally determined by curcumin spectrophotometry after distillation.
同时,对所拟溶样条件下所得的分析结果是否
问题进行
进一步探讨,结果证实,所拟溶样条件下
的测
结果
。
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.
本文报道两种中位
苯并冠醚亚单元取代的含稠合外环的
-二吡咯亚甲基染料的合成、光谱和电化学性质。
Thus, the boron-bearing rock system and the magnesian rocks are the foundation of the borate deposits, whereas regional metamorphism and migmatitization and tectonism are the necessary conditions.
含岩系、镁质容矿岩石是
矿形成的物质基础,区域变质及混合岩化作用、构造活动是
矿形成的必要条件。
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