查询词典 p-phthalic acid

The results showed that p-hydroxybenzoic acid has potential to be developed into an algicide.

因此，对羟基苯甲酸可望被开发出一种高效低毒的生物杀藻剂。

Nd 2O 3 used as solid catalyst for the preparation of nipagin esters with p hydroxybenzoic acid and alcohol has been studied.

研究了以三氧化二钕为固体催化剂，由对羟基苯甲酸和乙醇合成尼泊金乙酯。

P hydroxybenzoic acid ; oligomer ; PET ; transesterification ; block copolymer

对羟基苯甲酸；齐聚物；聚对苯二甲酸乙二醇酯；酯交换反应；嵌段共聚酯

By one-pot method,with p-toluenesulfonic acid as catalyst,trimethyl orthoformate and cyclohexanone reacted in isopropanol to form 1,1-dimethoxycyclohexane,which,without separation,reacted furthur with isopropanol to form the title compound by distilling off the low-boiling product.

用一锅法，以对甲苯磺酸为催化剂，在异丙醇中原甲酸三甲酯与环己酮反应，其产物不经分离直接与异丙醇交换，得到1，1-二异丙氧基环己烷。

Nucleic acids were determined at nanogram levels based on their enhancement effects on the fluorescence reaction system between H 2O 2 and p hydroxyphenylacetic acid catalyzed by Mn [tetrakis(3 N methylpyridiniumy)porphyrin],a mimetic peroxidase.

痕量核酸对meso 四(3 N 甲基吡啶基)卟啉合锰催化H2 O2 氧化对羟基苯乙酸的荧光反应产生增强作用，且增强程度与核酸浓度之间有良好的线性关系，据此建立了测定核酸的高灵敏的荧光分析方法。

In typeⅡdiabetes mellitus,the concentration of free fatty acid and triglycerine is generally high, especially in obesity.Long-term exposure ofβ-cells to high concentration of FFA will induceβ-cell s apoptosis. Many studies have shown that glucose and FFA effect synthesis and secretion of insulin stimulated by the insulin secreted byβ-cells trigged by themselves.

并进一步对功能受损的β细胞进行分子生物学检测，通过观察游离脂肪酸在不同浓度葡萄糖协同作用下对PI-3K、P-PKB、PDX-1活性及表达的影响来揭示这种协同作用导致β细胞功能损伤的分子机制。

The endogenous amino acid loss was measured by statvation and Nitrogen-free diet methods.

试验结果表明，除菜籽饼外，无论是氨基酸的表现消化率均值或用绝食法或无氮日粮法估测的真消化率均值，鸡鸭之间均有显著（P＜0.05）或极显著差异。

Three activated carbons having different surface areas, coconut-shell based, pelletized and bamboo-derived, were modified by mixing them with four thermoplastic precursors, poly, hydroxy propyl cellulose, citric acid, and fluorine-containing polyimide followed by heat treatment at 900℃ for 1h.

三种具有不同比表面积的活性炭—椰壳基AC-C、粒状AC-P和竹基AC-B分别与四种热塑性前驱体—聚乙烯醇，羟基丙基纤维素，柠檬酸，含氟聚酰亚氨混合后，在900℃热处理1h。

Genotype BB-representing Arg 669 was well-conserved amino acid with other MC4R subtypes or other species MC4R.

这个突变位于5′-调控区上，对该位点的多态性与肉用性状关系分析，发现突变基因型BB个体的腿肌重显著高于野生型AA个体（P＜0.05）。

The screening test also reveals that tin chloride dihydrate/p-toluenesulfonic acid system is particularly effective for increasing the molecular weight of PLA.

而SnCl〓·2H〓O+TSA二元催化体系能够很好地催化乳酸缩聚反应，并且可以抑制外消旋和变色等副反应的发生。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。