化学化工专业英语试卷

8. oxidation reaction：
9. organic chemistry： element：
enough area to merit
another separate aritcle. 2．In contrast to inorganic
compounds, the molecular
attraction of organic
compounds is weak, so
organic compounds are
usually volatile and
possess low melting
points.
3．Benzene can undergo the typical substitution
reactions of
halogenation,
nitration,
sulphonation and
Friedel-Crafts
reaction. 4．Evaporation is conducted by vaporizing a portion of
the solvent to produce a
concentrated solution or
thick liquor.
5．The presence of a substituent group in
benzene exerts a
profound control over
both orientation and the
ease of introduction of
the entering
substituent.
6．The functional group of a ketone consists of a
carbon atom connected by a
double bond to an oxygen
atom.
7．At equilibrium, these two rate are equal; cupric
ion is still reacting
with ammonia molecules
to form the complex, and
the complex is still
decomposing, but just as
much cupric ammonia
complex is being
decomposed in unit time
as is being formed. 8．The reaction of an acid chloride with an amine is
used commercially in the
manufacture of the very
important range of
semi-synthetic
penicilings,first
produced by the Beechan
Group in 1959. 9．Thus satisfactory binding propertise are essential
for trouble-free
compression and the
production of good
quality cakes over long
manufacturing periods. 10．The synthesis of organic compounds involves
conversion of
available substances
of known structure,
through a sequence of
particular,
controlled chemical
reactions, into other
compounds bearing a
desired molecular
structure.
The active ingredients were identified in the unsaponifiable fraction of this vegetable product. After solvent extraction and drying, the pure unsaponifiables are obtained in the form of a waxy solid. This waxy solid is then redissolved in untreated shea butter to
increase the unsaponifiable content and thus lead to the unsaponifiable shea butter concentrate. Used in cosmetics at levels of up to 2%,it provides excellent protection against sunlight and skin dryness.
Another example is the extract of the kola nut, known for its anti-irritant properties. As available in the market, it has an objectionable color and odor . At Estee Lauder, we analyzed and separated its
constituents, identified the individual components
with anti-irritant properties, and recombined them in the most effective ratio. In the process , objectionable color and odor were removed and possible allergens（过敏
原） eliminated. All this indicates that cosmetics formulated with plant
extracts today can be more effective and , at the same time, more elegant than 10 or 20 years ago.
采用一种简单、可靠并且有效的气相色谱法，来同时测定草药鱼腥草和鱼腥草注射液中8种活性组分的含量。

在研究的浓度范围内，发现鱼腥草中草药和注射液中8种活性组分的R2的值高于，都有良好的线性行为，其日内和日间的精度都很高，其RSD 小于2%，且在三种不同浓度下获得的8种组分的平均回收率范围为%–%，RSD为～%。

该方法已成功应用于鱼腥草中草药和注射
四、Translate the following paragraph into Chinese
（本大题共1个小题，共25分）
五、Translate the following paragraph into
English
（共15分）
液的这8种活性成分的同时测定，包括不同厂家、不同批次生产注射液过程中的中间产物。

这表明本文提出的方法特别适合注射液的常规分析和在生产过程中的质量控制。