- 相关例句
The molar absorbance at 350 nm increases if the aldehyde contains a double bond.
如果醛含一个双键,则摩尔光吸收在350nm处增加.
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The process includes hydroxylation, self packing of APTES and terephthalic aldehyde packing.
其置备方法主要包括羟基化 、 APTES的自组装和对苯二甲醛的组装三步.
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开放时间长, 强度好. 游离甲醛含量通过国家标准.
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Subject : To determine aldehyde chemical compound in alcohol quickly.
目的: 快速检测酒中醛类化合物.方法:毛细管气相色谱法.
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Objective To set up a method for determining the protocatechuic aldehyde in Qingshenjianfei tablets.
目的建立轻身减肥片中原儿茶醛的含量测定方法.
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And the contents of cinnamic aldehyde and menthol were determined synchronously by GC.
并用气相色谱法对制剂中肉桂醛和薄荷醇进行定量测定.
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本方法适用于分析醛类含量较低的疏水性胶粘剂中的醛类物质.
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In the presence of acetic acid, p-anisidine reacts with aldehydes producing a yellowish color.
在乙酸存在下, p - 茴香胺与醛类反应产生黄色.
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将醛类物质与2, 4- 二硝基苯肼 ( DNPH ) 的衍生反应液直接进样,以苯为内标物,测定了甲醛 、 乙醛等醛类物质DNPH衍生物的校正因子.
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Six dimethylsilyl bis -- enol others of aldehydes are synthesized and the yields are good.
合成了六个醛的二甲硅基双烯醇醚,产率较高.
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简单的醛有甲醛(HCHO ) 和乙醛 ( CH3CHO ).
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STUDIES ON THE REACTION BETWEEN ALDEHYDES AND 1, 2-BIS ( p-TOLYL-AMINO ) ETHANE.
醛类与1, 2- 二 ( 对甲苯胺基 ) 乙烷作用的研究.
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These reactions are therefore used to discern between ketones and aldehydes.
这些化学反应因此被用来区分醛类和酮类.
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REDOX Relationships amongst Alcohols , Aldehydes and Ketones and Carboxylic acids.
醇, 醛与酮和羧酸之间的氧化还原关系.
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The technique is applicable to other impurities such as aldehydes and alcohols.
该技术可用于其它杂质,例如醛和醇.
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