A method for simultaneously determining sorbic acid, benzoic acid and saccharin sodium in processed fishery product was established.

采用高效液相色譜法同時(shí)測(cè)定水產(chǎn)品中的山梨酸欧美艳情性爱视频网址、苯甲酸国产av精选久久久、糖精鈉变态另类a深喉在线视频播放，實(shí)驗(yàn)采用鐵氰化鉀和乙酸鋅作沉淀劑黄页网站免费观看的视频高清，取得了良好的凈化效果。

In this paper,a rapid and sensitive method of reverse high performance liquid chromatography for simultaneously determinating the benzoec acid and sorbic acid in drinks was established .

建立一種測(cè)定飲料中苯甲酸和山梨酸含量的快速反相高效液相色譜法99国产网站。

For further understanding the effect of the strain on K-bearing silicate mineral, an experiment with KO2 strain cultured in nitrogen-containing and nitrogen-free medium was conducted. By putting mineral powders into the medium and measuring the concentration of capsular polysaccharides, we concluded that the strain can accelerate the weathering rate of silicate minerals. The results showed that the polysaccharides secreted by the strain in the growth process could help the bacterial to adhere to the mineral surface effectively, and created the bacterium-mineral complex, which formed a mircro-enviorment avail the release of potassium. Another result was that there was higher level of Carbonic Anhydrase activity, which revealed that some exo-protein or enzyme produced by the bacterial had postive impact on the process of releasing potassium ion. We carried out the bacterial fermentation for larger scale production of the bacterial secretion, which was used to sperate, and identify the small molecules related to the mineral-bacterial interaction. After the analysis, it was found that the strain can produce many kinds of small molecules, such as 2-Hydroxybenzoic acid, 4-Hydroxyphenylacetic acid, methyl-4-hydroxybenzoate, etc.

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The right formula of the TiO2 sol was found through discussing the influence of acetic acid and hydrochloric acid. Then in different factors such as temperature, pH value had been studied the experiments of the influences upon the time of TiO2 sol into gelation.On the surface of the textiles treated with the sol-gel process may form a thin sporous oxide film.

本論文將成功制備的穩(wěn)定透明的TiO_2水溶膠用于純棉織物后整理上，使織物具有一定的屏蔽紫外線和拒水的性能日韩综合无码视频一区二区三区，并且研究了TiO_2水溶膠與環(huán)氧基改性硅氧烷水溶膠復(fù)合使用最近最新中文字幕视频，對(duì)直接染料染色的織物進(jìn)行后整理，能起到較好的固色效果美女强奸毛片。

Drugs were injected intravenpusly by a syringe pump and their effect on pentagastrin-induced [ 1Og/, iv] gastric acid secretion was measured - The results were as follows:(1 ) The inhibitory effect of HA on gastric acid secretion was abolished by subdiaphragmatic vagotomy.

用注射器泵靜脈每小時(shí)給藥一级黄色片日本，觀察其對(duì)五肽促胃液素(10μg/kg，iv)誘導(dǎo)的胃酸分泌的影響欧美精品第8页。

Sulfonic acid is a foaming acid available from some of the oil companies.

磺酸是從一些煉油公司獲得的一種起泡酸91国内自拍视频在线观看。

In this paper, the emulsifier sodium polyether sulfovinate modified polysiloxane was synthesized by sulfuric acid esterification between chlorosulfonic acid and polyether modified polysiloxane, then alkali neutralization. It was a kind of nonionic and anionic composite emulsifier.

本論文以聚醚改性聚硅氧烷為原料，進(jìn)行硫酸酯化反應(yīng)www7久精品九视频，并進(jìn)一步用堿中和欧美自拍日韩极速播放在线观看视频，合成了聚醚改性聚硅氧烷硫酸酯鈉乳化劑，該乳化劑屬于非離子无码国产盗摄偷窥、陰離子復(fù)合型乳化劑′欧美日韓性愛視頻在線免費看。

It shows that sulphamic acid is a good solid acid catalyst for Pechmann reaction.

實(shí)驗(yàn)結(jié)果顯示，氨基磺酸是Pechmann反應(yīng)的良好固體酸催化劑黄色网址在线观看视频。

Polyaniline/Sulphosalicylic Acid nanotubes and nanofibers which are formed by doping 5-sulphosalicylic acid into aniline, neodymium oxide( Nd_2O_3) and Polyaniline/ Nd_2O_3 composite nanomaterial are successfully synthesized by a method of template.

利用模板法合成了5-磺基水楊酸與苯胺摻雜形成的聚苯胺/磺基水楊酸納米纖維及納米管欧美三级视频久久网，以及氧化釹(Nd_2O_3)納米棒和PAN/Nd_2O_3復(fù)合納米材料。

For resolving the lack of solubility data terephthalic acid in aqueous acetic acid, a method of determining the solubility at high temperature was developed.

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