柠檬酸

柠檬酸可以从橙汁、柠檬汁、酸橙汁或者柚子汁中提取。

Citric acid can be extracted from the juice of oranges , lemons , limes or grapefruit .

小麦B淀粉工业化发酵生产柠檬酸的研究

Using wheat B starch as raw material for industrial fermentation to produce citric acid

柠檬酸改性Hβ分子筛上的苯与丙烯烷基化反应

Alkylation of benzene with propene over H β zeolite modified with citric acid

研究了其抗氧化增效剂，维生素C和柠檬酸具有协同增效作用。

The antioxidation synergistic effect of C3 1 with Vitamin C and Citric Acid was studied too .

柠檬酸三钠pH滴定法的研究

Determination of sodium citrate by pH titration

柠檬酸盐燃烧法合成超微W型铁氧体

Synthesis of ultrafine W - type ferrite powders by citrate combustion method

其营养丰富，果实中富含胡萝卜素、番茄红素、维生素C以及柠檬酸等有机酸和无机盐等。

It is the nutrient-rich fruits which contains much carotene , lycopene , vitamin C and citric acid and inorganic salts .

研究了柠檬酸钠在花状银的形成过程中起到的作用以及pH值对产物的形貌的影响。

The effects of sodium citrate and pH value on the flower-like silver micro-nano materials were studied .

浓缩之前，溶液的pH值用柠檬酸调整到6.9-7.2；

The pH of sodium citrate solution should be adjusted to the range of 6.9-7.2 before concentration ;

紫菜汁中添加Vc和柠檬酸钠能起到保护紫菜汁颜色的作用。

Vc and sodium citrate could protect the colour of laver extract well .

在相同pH条件下，柠檬酸-柠檬酸三钠提取的酶活性最大。

At the same pH value , enzyme activity was the highest with citric acid - citric acid Na buffer .

B反应、无机N源利用、柠檬酸盐利用呈阳性，硝酸盐还原试验大多呈阳性；

B reaction , inorganic nitrogen sources utilization and citrate utilization , the results were positive . Nitrate reduction experiment presented positive largely .

基于小型DCS的柠檬酸蒸发结晶过程控制

The Control of The Evaporation and Crystal Process of Citric Acid Based on Small DCS

累托石催化草酸、柠檬酸光化学还原Cr（VI）的研究

Rectorite Catalyzed Photochemical Reduction of Chromium ( VI ) by Oxalate and Citrate in Aqueous Solutions

研究了柠檬酸（CA）/乙二醇（EG）（质量比）、pH值对前驱体溶胶稳定性的影响。

The effects of CA / EG and pH value on the stability of the precursor sol were investigated .

利用转变压法研究了pH值对部分水解聚丙烯酰胺与柠檬酸铝体系交联过程的影响。

The influence of pH value on crosslinking characteristics of hydrolytic polyacrylamide-aluminum citrate ( HPAM ) system was studied by transition pressure method .

柠檬酸对Ni-P合金化学镀沉积速度和镀层性能的影响

Effects of citric acid on electroless Ni-P alloy deposition rate and properties

脱脂、CMC、明矾、柠檬酸可使蕨根淀粉的冻融稳定性降低。

CMC , potassium alum , citric acid slightly weaken the freeze-thaw stabilization .

结果表明，施用柠檬酸明显降低了土壤pH，增加了土壤中的有效磷的含量；

The pot experiment showed that applying citric acid could remarkably reduce soil pH , and increased the contents of available phosphorus in calcareous soils ;

因此，采用柠檬酸和氯化铵为混合配位体，硼酸为稳定剂从水溶液中电沉积出Ni－La－P合金镀层。

Nickel-lanthanum-phosphorus alloy deposits were obtained from aqueous solutions by using citric acid and ammonia chloride as mixed ligand and boric acid as stabilizer .

建立气体抗溶剂结晶实验装置，并用该套实验装置对柠檬酸（CA）的气体抗溶剂结晶进行了研究。

A set of experiment equipment is set up . Gas antisolvent crystallization of citric acik ( CA ) is studied using it .

以Nb2O5为初始原料，柠檬酸为配位剂与金属离子配位，形成金属-柠檬酸配合物溶液。

The metal-citric acid complexes were prepared using Nb_2O_5 as raw materials , citric acid as chelating agents .

Sr2CeO4∶Eu~（3+）柠檬酸-凝胶法的合成及发光性质研究

Synthesis of Sr_2CeO_4 ∶ Eu ~ ( 3 + ) by Citrate gel Method and its Luminescence Properties

冷冻浓缩橙汁中柠檬酸钾结晶（MPC）的研究

Crystallization of Monopotassium Citrate in Frozen Concentrate Orange Juice

柠檬酸的添加量为0.2g·kg。

The adding amount of citric acid was 0 . 2 g kg .

采用山羊不同免疫组织作为原料，以氯化钠-柠檬酸钠法与苯酚-稀盐法进行RNA提取的比较；

Different goat immune tissues were used as raw materials , RNA was extracted by sodium chloride-citric sodium and phenol-the thin salt methods .

PO4~（3-）和柠檬酸对稀土元素在小麦体内积累和分异的影响

Influence of PO_4 ~ ( 3 - ) and Citrate on REE Accumulation and Fractionation in Wheat

共存的H2O2降低柠檬酸水溶液对铁模拟腐蚀产物的溶解量。

And that coexisting hydrogen peroxide reduces quantity of dissolved simulated corrosion products in citric acid aqueous solution .

利用X射线衍射、分子荧光光度法等研究柠檬酸和NaF等助剂添加对荧光粉结构与发光性能影响规律。

The affects of citric acid and NaF on phosphor 's photoluminescence were studied by XRD and fluorescence spectrum respectively .

研究了不同浓度的柠檬酸、草酸、苹果酸对蛇纹岩发育土壤镍（Ni）、钴（Co）的活化效果。

The activity effect of citric acid 、 oxalic acid and malic acid of different concentration on Ni and Co in serpentine rock growth soils was studied .