活性酸

1对土壤活性酸的影响

1.1 soil active acidity

本实验对土壤用水浸提和KCl浸提两种方法测定其活性酸和潜在酸，并用不同的液土比测定其pH值。

Water and KCl solution extraction and different ratioes of liquid / soil were used to detect the active and latent acidity in soils .

其中单液法是基于单一物质热分解而产生CO2，双液法是基于能够产生气体的水溶液和低浓度活性酸之间的放热化学反应。

The single liquid system is based on heating the single compound to decompose CO_2 , and the double liquids system is based on exothermic chemical reaction between gas forming water solution and low concentrated active acids .

用NH3－TPD和IR方法研究了催化剂的酸性质，讨论了催化活性与酸性质的关系。

In addition , catalysts acidity was investigated by NH3-TPD and IR methods . The relationship between catalytic activity and acidity was discussed .

活性L酸位来自于活性状态杂多阴离子（HPA）/载体，即P5+/W（6-δ）+/O2-/载体。

Lewis acid sites come from their surface-active state of HPA / carrier . The catalyst is P 5 + / W ( 6 - δ) + / O 2 - / carrier .

考察了PVAC-1在合成邻苯二甲酸二异辛酯、己二酸二异辛酯、苯甲酸异辛酯等高沸点酯中的催化活性，酸的转化率分别达到99.8%、99.8%和99.7%。

Using PVAC-1 as catalyst , the conversion of acid was up to99.8 % , 99.8 % and99.7 % for the synthesis of dioctyl phthalate , diisooctyl adipate and benzoate , respectively .

活性腐殖酸复合肥对水稻产量和品质的影响

Effects of Humic Acid Compound Fertilizer on Rice Yield and Quality

鸡粪中活性有机酸的分离与鉴定

Separation and identification of biological active organic acids in chicken feces

天然手性源在光学活性菊酸合成中的应用

Application of Natural Chiral Resources in Synthesis of Optical Chrysanthemic Acids and Their Analogues

非光学活性酒石酸，通常存在于葡萄汁中。

The optically inactive form of tartaric acid that is often found in grape juice .

实验发现：催化活性与其酸强度顺序一致。

It was found that the activity of the heteropoly acids increased with their acidity .

施用活性腐殖酸有机肥主要通过增加水稻的穗粒数来提高经济产量；

Applying Humic acid fertilizer mainly improved economic output by increasing the TNSP of rice .

新型高活性均质酸牛奶的研制

Study on High Active Homogeneous Yogurt

系统性地组合2种或3种具有促进转硫酶活性酚酸化合物在复合作用下对转硫酶活性之影响。

The recombination action assembled systematically in 2-3 compounds with active phenolic acid of transsulfurase influenced transsulfurase activity .

二类手性铜催化剂的合成及其在光学活性菊酸合成中的应用研究

Synthesis of Two Types of Chiral Copper Catalysts and Study on Their Application in the Synthesis of Optically Active Chrysanthemic Acid

采用平衡溶胀法、力学性能测试及高低温老化试验等方法，研究不饱和双键高活性脂肪酸锌盐&FL对丁腈橡胶粘结磁体力学性能以及老化性能的影响。

The influence of FL on NBR bonded magnet properties was investigated by equilibrium swelling , mechanical testing and aging test .

用红外光谱法研究了改性Y型分子筛的表面酸性，并考察了烷基化反应活性与酸性质的关系。

The relationship between surface acidity and alkylation reaction catalytic activity of modified Y zeolite was studied on fixed-bed reactor by FT-IR .

茶籽中脂肪酸的组成及其生物活性脂肪酸对高糖胁迫下RF/6A细胞生长的影响

Compositions of Fatty Acids in Tea Seeds and Effects of Their Bioactive Fatty Acids on Glucose-induced Cytotoxicity in RF / 6A Cells

实验表明，离子液体的催化活性与其酸强度密切相关，只有在酸性条件下，离子液体对烷基化反应才有催化活性。

The results showed that the activity of ionic liquid correlated strongly with its acidity , and only acidic ionic liquid had alkylation activity .

第二代大环内酯类抗生素具有良好的抗菌活性和酸稳定性，但是目前耐药性问题成为当务之急。

The second generation macrolide antibiotics has the satisfactory antibacterial activity and the stability in acid . But the tolerance has been the urgent problem .

此生产过程将带出两种有用的副产品：一是具有商业价值的聚合物高活性无机酸木质素；另外是用在染色和糖尿病患者食物中的木糖。

The process would produce two useful by-products : unsulphonated lignin , a commercially valuable polymer , and xylose , a type of wood sugar used in dyeing and in foods for diabetics .

由吸附等温公式拟合结果显示为物理吸附，吸附能力顺序为：酸碱改性活性炭酸改性活性炭未改性活性炭。

The final results of isothermal absorption equation show that absorption is a physical process and the sequence of absorption capacity is arranged as follows : activated carbon modified with acid and base , activated carbon modified with acid , and unmodified activated carbon .

含能铅盐B燃烧催化剂活性比芳香酸铅盐C要高，故使用量少，对提高配方能量有益。

The catalytic activity of energetic lead B is higher than that of aromatic acid lead salt C.

BUT对膜乙酰胆碱酯酶（AChE）的活性、唾液酸（SA）的含量及膜蛋白组分没有明显的影响。

BUT had no obvious effects on the activity of acetylcholinesterase ( AChE ), the content of sialic acid ( SA ), and the protein compositions of erythrocyte membranes .

各个处理间PEPC活性与苹果酸含量均没有明显的相关性。

There is no significant relativity between the activity of PEPC and malic acid content in various treatments .

实验发现，β分子筛对甲基叔丁基醚（MTBE）反应的催化活性是各类酸中心共同作用的结果，但强Lewis酸密度对其活性的影响较大；

It was found that all kinds of acid contributed to the catalytic activity of zeolite beta for MTBE , and the strong Lewis acid density had larger influence .

福辛普利（蒙诺）是其活性二价酸福辛普利拉的酯类前体药物，也是新的磷酸类血管紧张素转换酶（ACE）抑制剂家族中的第一个成员。

Fosinopril ( MoNopril ) is an ester pro-drug of the active Daicel fosinoprilat and is the first member of a new class of angiotensin-converting enzyme ( ACE ) inhibitors , the phosphoric acids .

本文测定了白血病人红细胞变形能力（RCD）及红细胞膜谷胱甘肽过氧化物酶（GSHPx）活性和唾液酸（SA）含量。

Glutathione peroxidase ( GSHPx ) activity and sialic acid ( SA ) content of the erythrocyte membrane and red cell deformability ( RCD ) from the patients with leukemia were measures .

NADP-ME活性与苹果酸含量呈负相关关系，其相关性在果肉中达到显著水平。

The correlation between the activity of NADP-ME and malic acid content was negative and the correlation reached significant level in pulp .

几种活性剂对酸液腐蚀速度的影响

Influence of Some Active Agents on Corrosion Rate of Acid Liquid