查询词典 aromatic

The method was based on the aromatic hydroxylation of terephthalate by hydroxyl radical, produced from the homolysis of peroxynitrite in weak acid media, to yield a highly fluorescent product, 2-hydroxy-terephthalate, which was then detected fluorimetrically.

具体做法是将ONOO〓在pH 5.0的缓冲液中转化为其共轭酸ONOOH，而ONOOH本身不稳定，均裂生成·OH，·OH进攻对苯二甲酸生成强荧光产物2-羟基对苯二甲酸，利用荧光分析法测定2-羟基对苯二甲酸，从而间接确定ONOO〓的含量。

An aromatic or spicy dish served at the end of dinner or as an hors d'oeuvre.

香味的或辛辣的菜，在正餐结束时上菜。

With this first rate material, our Cellar Master uses a combination of his know how of traditional winemaking with performing modern vinification techniques and an ageing period of twelve months in oak barrels to yield a dark hued, nicely fleshy, supple, and aromatic wine.

有了一等的材料，我们的酒窖主人采用他所知的现代葡萄酒酿造技术与传统酿酒法并用的方法，加上12个月橡木桶陈酿，产出了一种有黑色调，酒体丰厚的，柔顺芳香的葡萄酒。

There six chapters in this dissertation: the overview on the study of probing for reactive oxygen species, spin-labelled fluorophore as probe for free radicals, Fe -EDTA chelate-induced aromatic hydroxylation of terephthalate as a new method for the evaluation of hydroxyl radical-scavenging ability, study of fluorimetric method for the determination of peroxynitrite, study of spiro-formed rhodamine B hydrazide as a novel fluorescent probe in analytical chemistry, the conclusion and prospect of the present research work.

本论文分六章，包括生物活性氧表征的研究进展、自旋标记荧光探针表征自由基的研究、利用Fe-EDTA引发对苯二甲酸芳环羟基化反应评价抗氧化剂清除羟基自由基能力的研究、荧光法表征过氧亚硝酸根的研究、螺环型罗丹明B酰肼化合物作为新型荧光探针的性质及应用的研究、结论与展望。

Six kinds of phenyl hydrazone s were synthesized by the reaction of ice bath using aromatic dia- zonium salt and active methylene compounds.

在冰盐浴条件下，芳香族重氮盐与活泼亚甲基化合物反应，合成了六种新芳香族腙类衍生物。

A novel application of hydrolase as catalyst for the addition of diethylzinc to aromatic aldehydes is reported. Optimum conditions were screened out.

报道了水解酶催化二乙基锌与芳香醛的加成反应，对反应条件进行了优化。

In chapter 3, Fe-EDTA chelate-induced aromatic hydroxylation of terephthalate as a new method for the evaluation of hydroxyl radical-scavenging ability was studied.

第三章利用Fe-EDTA引发对苯二甲酸芳环羟基化反应建立了一种评价抗氧化剂清除·OH能力的新型荧光分析法。

In continuation of previous experiments ,the reaction of aromatic aldehydes with t-butyl hypochlorite was studied.

在前一试验的继续中，有t-丁基次氯酸盐was的芳香的醛的反应学习。

In addition, the company marketing the world of high-quality insulating materials, such as the United States DuPont's polyester film, aromatic amines-washing paper, film-washing imine and composite products NMN, NHN and From the United Kingdom, South Korea, Japan, China's all kinds of insulation materials and industrial belt, I can according to customer's company, to provide the goods at the cutting and processing services.

此外，公司还经销世界各国的各种优质绝缘材料，如美国杜邦公司的聚酯薄膜，芳香聚洗胺纸，聚洗亚胺薄膜及复合产品NMN，NHN以及来自英国，韩国，日本，中国的各种绝缘材料和工业胶带等，同时我公司还可根据客户要求，提供上述货品的分切和加工服务。

Distribution coefficients, separation factors and selectivity were evaluated for the immiscibility region, and their connections with temperature and the concentration of aromatic hydrocarbon were studied respectively.

Othmer-Tobias和Bachman方程对三元体系相平衡实验数据关联的结果表明实验数据具有较好的一致可靠性。2、N-甲酰吗啉抽提性能研究。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。