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Ci枣子

新虫 (初入文坛)

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Experimental
Materials and reagents
  ZSO was provided by a local company located in Hancheng, Shaanxi Province, China. This is a high yield area for Z.bungeanum Maxin. The chroma value of rough ZSO was 57. Peroxide and other chemicals were of analytical reagent grade and made from Tianli chemistry reagent Ltd of Tianjin city.
Method
   Decoloration by peroxide
Single factor test. The reaction was affected by many factors, such as peroxide content,reaction temperature, and reaction time. The factors can be optimized by conventional one factor-at-a-time method and statistical methods. Conventional methods involve changing one independent variable at a time while keeping other factors at a fixed level.
  Orthogonal test. Orthogonal test design was based on the principle of statistical mathematics,and the tests were arranged scientifically to solve multiple factor optimization requirements with reduced numbers of tests conducted. The influence of methanol-to-oil molar ratio, catalyst concentration, reaction temperature, and reaction time was tested.

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南京工大

木虫 (小有名气)

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Ci枣子: 金币+30, 翻译EPI+1, ★★★很有帮助 2013-05-05 21:58:20
实验部分:
材料和试剂
花椒籽油是由陕西韩城的当地一家公司提供的。该地是中国花椒的主要产地之一。花椒籽油原油的色度值为57。过氧化物和其他的化学物质购自天津天利化学试剂有限责任公司,且均为分析试剂级。
方法
过氧化物脱色
单一因素研究。该反应受很多因素的影响,例如过氧化物含量,反应温度,以及反应时间。这些因素可以通过传统的逐一要素优化法和统计学方法进行优化。常用的方法是,一次改变一个变量,同时保持其他变量值不变。
正交试验。正交试验是基于统计数学的原理进行的,并通过科学的安排以满足对多种要素优化的需求,同时还要使得进行的研究组数尽可能少。我们对甲醇与油的摩尔比,催化剂浓度,反应温度以及反应时间的影响都进行了分析测试。
2楼2013-05-05 21:56:18
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