The route include three steps: etherification, ammoniation and then oxidation. Factors such as chloracetate, reaction temperature on process were studied. And discussed the ionic liquid was recovered.

討論了不同的氯乙酸酯和反應溫度對醚化反應收率的影響日本色视，討論了不同的二苯甲硫乙酸酯對氨解反應收率的影響成熟女人牲交片免费，及離子液體的回收使用18禁美女裸露网站入口。

P chlorophenoxyacetic sodium was synthesized by p chlorophenol with 2 chloroacetic acid in the 20% hydroxide sodium aqueous solution.

采用一步法由氯乙酸與對氯苯酚在氫氧化鈉質量分數(shù)為 0 2的水溶液中的反應制得老熟妇嗷嗷叫91九色。

After pioneering the development of recent years has become a larger national, Henan The largest amino acid, chloroacetic acid production base.

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Production technology of synthesis of allantoin are reviewed, including glyoxal oxidation, electrochemical synthesis, calcium glyoxylate synthesis, dichloroacetic acid synthesis, ace-tochloral method, and oxidative decarboxylation.

評述了乙二醛氧化法可观看的黄色网站、化學法狼友视频在线免费播放、醛酸鈣法、素三氯乙醛合成法精品熟女综合网、酸二氯乙酸法和尿酸氧化脫羧法等合成尿囊素的各種工藝清纯激情欧美。

The difficulty of route is the refinement of products. There is a lot of sodium chloride in solution. In order to refine the glycolic acid, the methods of vacuum distillation and organic solvent extraction are adopted.

水解合成后得到的是羥基乙酸的水溶液，其中含有大量的氯化鈉和少量未水解的氯乙酸及其它雜質午夜男女免费观看视频，采用減壓蒸餾及有機溶劑萃取方法進行精制是比較適宜久艹精品综合伊人。

In this method, titration with standard solution of perchloric acid in glacial acetic acid was used.

建立了在非水條件下快速測定食品中糖精鈉的方法，以冰乙酸為溶劑亚洲成综合人在线播放，用高氯酸的冰乙酸標準溶液滴定https黄视在线，經(jīng)過反復試驗，相對標準誤差0.92%~2.93%JIZZ日本国产大陆内射极品，加標回收率97.13%~100.3%日韩亚洲欧美高清专区，結果表明；該法定量分析準確55夜色66夜色国产精品视频，精確度高国产成年一级女人侧拍，可靠性和重現(xiàn)性好。

The extraction of Pr3+was studied by using heptane containing bis(2-ethylhexyl)phosphinic acid in sodium perchlorate,chloroacetic acid and citric acid medium ,respectively.

研究了二(2-乙基己基)膦酸(PIA-8)的庚烷溶液分別在高氯酸鈉A毛片在线导航、氯乙酸女人18毛片一级毛片亚洲、檸檬酸介質中對Pr3+的萃取。

The biogenic amines in test samples were extracted by 10% trichloroacetic acid and then derived with benzoyl chloride. The HPLC analysis for the samples were conducted as the following condition: mobile phase was a gradient elution program of methanol and water, the flow rate was 0.8 mL/min.

用10%的三氯乙酸提取樣品中的生物胺久草视频一区二区在线观看，采用苯甲酰氯衍生處理后妓女一级AA黄色视频，以甲醇/水為流動相，進行梯度洗脫欧美疯狂黄片，流速0.8 mL/min国产www黄，紫外檢測器波長為254 nm。

In the current study, anoxic dechlorinations of p, p'-DDT,γ-HCH, HCB in the Liao River sediment were studied under the following conditions: without any additional short chain carbon substrates or vitamin B〓; with the addition of short chain carbon sources (including sodium lactate, sodium propionate or sodium acetate); with the addition of vitamin B〓; with the addition of both short chain carbon substrates and vitamin B〓, with the addition of sodium dodecyl sulfate , a kind of surfactant; the coexistence of the three chlorinated compounds.

本文分別采用不外加碳源和維生素B〓外加碳源（包括乳酸鈉精品女人视频一区、丙酸鈉或乙酸鈉）黄色在线视频免费观看的网站、外加維生素B〓以及同時外加碳源和維生素B〓的方法，考察了p欧美日韩图自拍图片大全，p'-DDT日本免费高清视频www、γ-HCH和HCB三種氯代有機污染物單獨或混合存在下，在遼河沉積物中缺氧脫氯降解的情況欧美性爱国产视频，主要得到以下結論

Absorption kinetic curves for two mixed solvent/polyurethane membrane systems (ethanol-1, 2-dichloroethane/PU and ethanol-ethyl acetate/PU) are measured, the replacement is observed in experiment. Dual mode theory combining Henry's law and B.

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