Large amount of acid radical ion of acid salt can coexist or not in the solution depends on whether they have proton transfer reaction.
一般酸式酸根离子在溶液中能否大量共存，主要看它们之间能否发生质子转移反应。
The method has good sensitivity and selectivity. Proper amount of other halide ions, inorganic acid radical ions and metal ions dont interfere the determination.
方法具有较高的灵敏度和选择性，相当量的其他卤离子、酸根离子及一定量的金属离子不干扰测定。
Bean oil acid radical capped tea polyphenols were prepared using modification method. The structure of the prepared product was characterized by infrared spectroscopy.
采用分子修饰法制备了豆油脂肪酸酐修饰的茶多酚，通过红外光谱对分子修饰的茶多酚进行了结构表征。
The another method to be selected is mixing the first kind calcium salt and at least one kind of another calcium salt containing phosphoric acid radical in a kind of solution.
在另一种可供选用的方法中，一种第一种钙盐和至少一种其它的含磷酸根离子的钙盐在一种溶液中进行混合。
The results showed that the compatibilizing effect of sulfonated polystyrene(HSPS), (with its sulfonic acid radical)was most noticeable, and an improved impact strength of more than 20% was observed.
结果表明，未中和的磺化聚苯乙烯具有最明显的增容效果，其加入量不超过HIPS量的20％（ 质量分数）时共混物的冲击性能得到了提高。
Reaction of the isocyanic acid (HNCO) and isothiocyanic acid (HNCS) with ethylene radical is studied.
研究了异氰酸及异硫氰酸与乙烯自由基之间发生的反应。
The determination of sulfate radical content in sulfated polysaccharides(SPS) by gravimetric analysis of hydrochloric acid hydrolysis and barium sulfate precipation was investigated methodologically.
对盐酸水解—硫酸钡重量法测定硫酸酯化多糖（SPS）中硫酸基含量进行了方法学考察。
The univalent radical derived from benzoic acid.
从苯甲酸衍生而来的一价化学基。
Methods: Model of fibrosis of lung with injection by oil-acid to rat, observed the effect of erythromycin to neutrophil and oxygen-free radical.
方法采用大鼠油酸尾静脉注射制作急性肺损伤后肺纤维化模型，观察红霉素对损伤肺组织中中性粒细胞聚集及氧自由基的干预作用。
When scientists pretreat neurons with this acid in the lab, the cells are significantly (though not completely) protected from free-radical damage. Yup: Coffee is a good source of antioxidants.
科学家在实验室用这种化合物预处理神经元后，神经细胞抗自由基损伤的能力明显增强。没错，咖啡是很好的抗氧化剂来源。
The proton exchange of the polarized benzoquinone radical in solution contained sulfuric acid was studied.
研究了含硫酸溶液中极化的苯醌自由基与溶液中的质子发生的交换现象。
The polystyrenylphosphonous acid was synthesized by free radical reaction for the first time, and which was characterized by IR and MS.
用自由基反应首次合成出低聚苯乙烯基亚膦酸，用IR和MS对产物进行了表征。
Ellagic acid helps reduce free radical damage and protect the nuclei of cell DNA against damage.
柔花酸能有效对抗游离基，更深层保护细胞中的DNA。
In the present paper, a series of water-soluble copolymers of acrylic acid, acrylamide and acrylonitrile segments have been synthesized in aqueous solution by radical copolymerization.
采用自由基水溶液共聚法制备了水溶性丙烯酸-丙烯酰胺-丙烯腈共聚物。
By the method of free-radical polymerization in solution, cross-linked copolymer of sodium acrylate and acrylic acid of super-high molecular weight.
采用自由基水溶液聚合方法合成了超高分子量的丙烯酸(钠)聚合物。
Reaction of the isocyanic acid (HNCO) and isothiocyanic acid (HNCS) with ethylene radical;
异氰酸及异硫氰酸与氯代乙烯自由基间的反应。
A new method of simultaneous separating and determining tetrafluoroborate, p-toluene sulphonic acid, sulfate radical and 1,4-Butanedisulfonie acid by ion chromatography was established.
采用离子色谱法同时测定合成药物中存在的四氟硼酸根、对甲基苯磺酸根、硫酸根、1，4-丁二磺酸根4种离子。
Phragmoplast of coil coating has been prepared by free radical polymerization and by using acrylic acid, methyl methacrylate, butyl acrylate as the raw materials.
以丙烯酸、 丙烯酸丁酯和甲基丙烯酸甲酯为单体，采用自由基聚合法制备了聚丙烯酸卷材涂料前驱成膜物，获得了适宜的制备工艺条件。
The invention relates to a method for the controlled radical polymerisation of acrylic acid and the salts thereof in a reaction medium consisting only of water.
本发明涉及一种丙烯酸及其盐在仅由水构成的反应介质中的可控自由基聚合反应方法。
Abstract : The antioxidant and antibacterial activities of carnosic acid were studied by radical scavenging effect, reducing ability and tablet dilution methods.
摘要 ：通过自由基清除能力、还原力和平板二倍稀释法实验，评价了鼠尾草酸的抗氧化活性、抑菌活性。
To illustrate the effect of podophyllic acid piperidyl hydrazone nitroxide radical(GP1)on cell cycle phase and telomerase activity in human hepatocellular carcinoma as well as its antitumor mechanism.
研究GP1 对人肝癌细胞细胞周期和端粒酶活性的影响，探讨其抗癌机制。
Dimethylpyrazine reacted with phenylacetic acid, silver nitrate and ammonium persulfate through a radical hydrocarbylation mechanism to yield 5 benzyl 2,3 dimethylpyrazine.
以过硫酸铵和硝酸银为自由基引发剂 ，以 2 ，3 二甲吡嗪和苯乙酸为原料 ，首次采用自由基烃基化反应合成5苄基 2 ，3 二甲吡嗪。
Dimethylpyrazine reacted with phenylacetic acid, silver nitrate and ammonium persulfate through a radical hydrocarbylation mechanism to yield 5 benzyl 2,3 dimethylpyrazine.
以过硫酸铵和硝酸银为自由基引发剂 ，以 2 ，3 二甲吡嗪和苯乙酸为原料 ，首次采用自由基烃基化反应合成5苄基 2 ，3 二甲吡嗪。
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