To the separatory funnel in 10 ml acetate buffer and dispensable 1 ml of sodium thiosulfate solution, blending, followed by a second all-Canadian 10.0mL tetrachlorocarbon dithizone-0.01g/L solution, vibrating 2min, standing out carbon tetrachloride layer to 1 cm chromatometry Cup, zero-zero, adjusting to 520nm wavelength measuring the absorbance at, draw a comparison between the quantitative standard curve.

向各分液漏斗內(nèi)加5mL乙酸鹽緩沖液及1mL硫代硫酸鈉溶液色视频操暴力，混勻后再各加10.0mL二硫腙－四氯化碳溶液(0.01g/L)日本视频网址，振搖2min黄片免费观看2019，靜置分層又硬又大又爽又无遮挡的视频，分出四氯化碳層于1cm比色杯中在线等免费看黄片，以零管調(diào)節(jié)零點www。.你懂得，于520nm波長處測吸光度，繪制標(biāo)準(zhǔn)曲線比較定量美国少妇a级。

The influences of the sulfide source and Na_2S_2O_3 solution concentration on the preparation of nanometer mercuric sulfide/amidoxime composite fiber were investigated,and the antibacterial properties of different fibers to staphylococcus aureus and bacillus subtilis were studied.

探討了硫源和硫代硫酸鈉溶液濃度對制備納米硫化汞/偕胺肟復(fù)合纖維的影響免费激情在线视频国产，并研究了纖維對金黃色葡萄球菌和枯草芽孢桿菌的抗菌性能。運用紅外光譜儀及掃描電鏡對樣品進(jìn)行了表征国产免费一级特黄真人视频大全。

The study of the effect of DMSP (dimethylsulfoniopropionate, or dimethyl-beta-propiothetin, DMPT) in the production of acid rain and in the promotion of aquacultural animals nutrition is one of the focus fields in both environmental science and aquaculture.

一種二甲基硫化合物硫代甜菜堿成為環(huán)境科學(xué)和水產(chǎn)科學(xué)共同關(guān)注的熱點之一亚洲国产精品日本一区二区。

In this thesis, two series compounds of thiadiazole (2a~2f) and benzothiazole (5a~5f) were synthesized by using the reagent of iodobenzene diacetate. We also bound the iodobenzene diacetate reagent to the resin and applied it to synthesize thiadiazole and benzothiazole compounds.

本文利用二醋酸碘苯試劑分別與1-芳甲酰基-5-芳基-2-硫代縮二脲及1-芳甲跻寥司镁米酆暇酚谰猛计基-3-芳基硫脲反應(yīng)合成了噻二唑(2a~2f)和苯并噻唑(5a~5i)兩個系列的雜環(huán)衍生物久久99精品国产免费，并通過把二醋酸碘苯負(fù)載在高分子上合成了一類新型的固相氧化劑，同時考查了該固相氧化劑在噻二唑av九一，苯并噻唑類化合物合成中的應(yīng)用以及該固相氧化劑的循環(huán)使用欧洲人与动牲交Α欧美精品。

By means of covalent coupling with the activation of 1-ethyl-3-(3-dimethyllaminopropyl) carbodiimide hydrochloride and N-hydroxysulfosuccinimide.

利用自組裝技術(shù)將三巰基丙酸固定在金電極上，以1-乙基-3-（3-二甲氨基）碳二亞胺鹽酸鹽和N-羥基硫代琥珀亞胺作為活化劑亚洲欧美中文日韩V日本，將甲基對硫磷抗體以共價鍵形式固定在三巰基丙酸自組裝單分子膜修飾的金電極上日韩性色生活免费观看，制備了一種免疫傳感器。

It is characterized in that: 2-( 5-(dimethylamino methyl- 2- furyl methyl sulpho ethylamine reacts with 1- methylthio - 1- methylamino- 2- nitro ethylene directly in water phase, crystallizing and separating out ranitidine alkali.

其特征在于：它是由2-(5-(二甲氨基甲基-2-呋喃基甲基硫代乙胺與1-甲硫基-1-甲胺基-2-硝基乙烯直接在水相中反應(yīng)并結(jié)晶析出雷尼替丁堿大伊人一区在线视频。

A new aroma compound,furfuryl thiopropionate was synthesized using furfuryl thioalcohol and propionyl chloride as raw materials,with calcium oxide and sodium carbonate as acid-capturer.

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The results showed polymeric diaryliodonium salts were effective aryl ion transfer reagents. Thirdly, a new type polymer supported hypervalent iodine reagents poly { [4-Hydroxy iodo] styrene} has been developed. It was an effective oxidative reagent, and could be applied to the one pot synthesis of 4-arylthiazoles.

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This is because of the high concentration in Brassicas of substances known as glucosinolates which are metabolized to cancer preventive substances known as isothiocyanates.

這是因為其中含有高濃度的硫代葡萄糖酸鹽一区二区激情黄色视频免费观看，它可以代謝成癌癥的預(yù)防性物質(zhì)：異硫氰酸鹽。

This is because of the high concentration in Brassicas of substances known as glucosinolates which are metabolized to cancer preentie substances known as isothiocyanates.

這是因為其中含有高濃度的硫代葡萄糖酸鹽，它可以代謝成癌癥的預(yù)防性物質(zhì)：異硫氰酸鹽a∨在线视频。