| 查看: 430 | 回复: 1 | ||
| 本帖产生 1 个 翻译EPI ，点击这里进行查看 | ||
[求助]
求翻译
|
||
|
Advanced Materials and its Application Feedstocks Property Analysis The chroma was obtained through a simple colorimetry method using spectrophotometer.Absorbency of oil sample was measured in the wavelength of 460nm(A), 550nm(B), 620nm(C),670nm(D), and the chroma value can be achieved by the formula as followed. Chroma value=1.29A + 69.7B +42.1C -56.4D The measurement of chroma value was repeated for five times. Results and Discussion Effect of peroxide content on reduction of chroma value of ZSO Some ZSO was weighed, mixed round for 1h in 70°C, and added into 1.5%, 2.5%, 5%, 10% of peroxide for reacting. The results was displayed in Figure 1. The Figure 1 showed the effect on decoloration of 2.5% peroxide was preferable in stated reaction temperature and reaction time. When the content of peroxide was lower than 2.5%, the reaction was not enough. While content of peroxide was higher than 2.5%, the impurity of oil sample was enhanced, and the chroma value was largened. |
回复此楼» 猜你喜欢
Sci. Bull. 悲剧经验
已经有6人回复
-
提交了我也来说说感想
已经有5人回复
-
今年审到国自然15份，谈谈感受
已经有20人回复
-
国自然评分
已经有4人回复
-
面上本子正文33页，违规吗？会被低分嘛？
已经有11人回复
-
评审有感
已经有22人回复
-
反应很差，大量原料没有反应
已经有6人回复
-
如果工作了想读博，可以边工作边读全日制嘛？
已经有5人回复
-
如何实现卤原子转化
已经有8人回复
-
河北省自然科学基金
已经有3人回复
南京工大
木虫 (小有名气)
- 翻译EPI: 14
- 应助: 0 (幼儿园)
- 金币: 1971.3
- 散金: 102
- 红花: 6
- 帖子: 173
- 在线: 81.1小时
- 虫号: 1410020
- 注册: 2011-09-20
- 性别: GG
- 专业: 高分子组装与超分子结构
【答案】应助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
Ci枣子: 金币+30, 翻译EPI+1, ★★★很有帮助 2013-05-07 13:14:29
Ci枣子: 金币+30, 翻译EPI+1, ★★★很有帮助 2013-05-07 13:14:29
|
进料性质分析 进料的色度通过分光光度计用一种简单的比色法得到。分别在460 nm（A）、550 nm（B）、620 nm（C）、670 nm（D）四个波长值上对油样品的吸光率进行了测定，色度可以通过下面的公式求得： 色度=1.29A+69.7B+42.1C-56.4D 色度的测量重复五次。 结果和讨论 过氧化物含量对于花椒籽油色度值降低的影响 将一定量的花椒籽油称重，在70°C下混合循环1 h，之后分别加入1.5 %、2.5%、5 %、10 %的过氧化物进行反应，结果如图1所示。 图1表明，在规定的反应温度和反应时间条件下，过氧化物2.5%时的脱色效果较好。当过氧化物含量小于2.5%时，反应进行不充分。当过氧化物含量大于2.5%时，油品样品的杂质含量上升，色度值变大。 |
2楼2013-05-06 21:29:49
5