elemental yield 中文意思是什麼
elemental yield
解釋
元素產額-
Unfortunately, elemental analysis will not yield any information as to the extent of contamination by urea.
不幸的是,元素分析不能指出夾雜尿素的程度。 -
Meso - tetra ( 4 - acyloxyphenyl ) pophyrin was prepared by usual procedure from acyl chloride and meso - tetra ( 4 - hydroxyphenyl ) porphyrin in benzene and obtained in 86. 4 % yield. treatment of the free base with zinc chloride in dimethyl formamide ( dmf ) - dichloromethane ( ch2cl2 ) yielded corresponding zinc porphyrin complex. the spectral data ( uv - visjr / h - nmr ) and elemental analysis are in agreement with the assigned structures
在合成工作基礎上,採用紫外可見光譜( uv - vis ) 、紅外光聲光譜( ftir - pas ) 、核磁共振氫譜( ~ 1hnmr ) 、元素分析、摩爾電導等手段研究了卟啉及金屬卟啉材料的組成及結構。 -
The novel title compound was synthesized with benzaldehyde, isobutyraldehyde, phosphorus trichloride as raw materials. the total yield was 40. 8 %. the structure was confirmed by 1h nmr, 31p nmr and elemental analysis
摘要以苯甲醛、異丁醛、三氯化磷為原料合成了新型的1 , 3 , 2 -氧磷雜環類化合物2 -苯羥甲基5 , 5 -二甲基4 -苯基2 -氧代1 , 3 , 2 -二氧磷雜環己烷,總收率為40 . 8 % ,並對其進行了nmr研究和結構表徵。
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