1) photometric scale
光度标;光度比
2) specific rotation
比旋光度
1.
Through comparing the specific rotation of products that treat ed without saponification, we find that the products treated with saponifica tion have the higher specific rotation.
以提高天然VE 产品比旋光度为目的 ,用皂化与结晶相结合的方法对天然VE 浓缩物进行提纯。
2.
Several L-tartaric acid derivatives (1～6) were synthesized and their specific rotations were measured.
合成出系列的L 半螺旋型酒石酸衍生物 1～ 6 ,测定比旋光度 ,发现酒石酸二乙酯 2 ([α]2 5D+ 3 0 0° ,DMSO)形成 2 ,3 O 亚异丙基酒石酸二乙酯 3后旋光急剧往左偏移 ([α]2 5D - 4 5 0 3° ,DMSO) ,3酰胺化后比旋光值往右偏移 (4a :+ 11 19° ,4b :+ 2 14°) ,还原产物的比旋光值往左偏移 (5a :- 0 5 2° ,5b :- 4 92° ,6 :- 2 95°) ;并用分子的螺旋结构与基团的极化性质研究旋光规
3.
In this article we have analyzed mutarotation of D-glucose by means of physics ways determining specific rotation and statistical line method.
本文用物理学方法,借助于线性回归理论,通过比旋光度的测定来分析D-葡萄糖的变旋光现象,进而阐述温度和氨试剂等因素对D-葡萄糖溶液变旋现象的稳定平衡作用。
3) dulling luminosity ratio
吸光度比
1.
the influence of chilli growing area,extractive condition and concentrated method of chilli oil resin on the dulling luminosity ratio are studied.
研究了辣椒产地、提取条件及浓缩方法对吸光度比的影响。
4) refractivity intercept
比折光度
5) specific luminosity
比发光度
补充资料：光度
①光源所发的光的强度。通常以烛光为单位。②恒星的真实亮度，用整个恒星的表面每秒钟放出的能量来表示。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条