To dye the different types of fibers by the same dye, universal dyes based on naphthalene ring system are prepared by the diazo coupling reaction of 7-acetamide-4-hydroxy-2-oaphtialene-β-(N,N-dimethylaminoethyl)solfonamide and m-aminobenzene-β-hydroxyethyl sulfone sulfunate.

為了實現(xiàn)用同一支染料對不同類型的纖維進行染色的目的www.sdfsx.com，通過間氨基苯基－β-羥乙基砜硫酸酯與7-乙酰氨基－4-羥基－2-萘－β磺酰胺的重氮化偶合反應(yīng)合成了含萘環(huán)的通用染料欧美偷拍99，其結(jié)構(gòu)通過質(zhì)譜分析進行了表征18岁禁止污污男女小黄片。

Methods: Fat extracted from food and oil sample was determined directly on the ZnSe crystal cisterna of horizon attenuation total reflection equipment with deuterated triglycine sulfate detector in the FT-IR.

食品中提取的脂肪或油脂樣品直接置于紅外光譜儀的水平衰減全反射部件的槽式ZnSe晶體上国产精品欧美一区，氘化三甘氨酸硫酸酯檢測器檢測。

The synthetic process for a new plasticizer used in low temperature, dibutyl nylonic acid ester, was introduced.

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The product has green-yellow fluorescence at excitation wavelength of 355 nm and emission wavelength of 478 nm, and the fluorescence intensity could be enhanced in the presence of acetone.

三综合在线免费观看三级视频一区二区、流動注射在線氧化熒光法測定氯普噻噸的的研究利用在硫酸介質(zhì)中二氧化鉛可使無天然熒光的氯普噻噸氧化而轉(zhuǎn)變?yōu)樵谧畲蠹ぐl(fā)波長和最大發(fā)射波長分別為393nm和452nm的強熒光物質(zhì)，而且丙酮對該熒光體系有強烈增敏作用的現(xiàn)象在线观看免费毛片，建立了以醋酸纖維素固定化的二氧化鉛作為固相反應(yīng)器的流動注射在線氧化熒光法測定氯普噻噸的新方法亚洲群体性爱视频。

In modern chemical engineering, inorganic acids and metal haloids are wildly used as catalysts in esterification, such as sulfuric acid, phosphoric acid and AlCh, SnCU, TiCU.

目前，在工業(yè)化生產(chǎn)中大屌爆艹熟妇无码高清视频，對于酯化反應(yīng)多采用濃硫酸欧美裸体一级视频、磷酸等無機酸或金屬鹵化物，如AlCl_3碰碰精品插下面日本美女去了、SnCl_4亚洲无视频区、TiCl_4等作為催化劑。

In order to understand the lead and mercury content in Baby, sedative Chinese herb drugs, 179 preparations and 52 herbs of Chinese drugs were analyzed. Samples were prepared by Ash determination in lead and sulfuric acid-nitirc acid digestion in mercury, then determined by AAS.

將市售小兒驚風(fēng)散類制劑179件及其藥材52種911在线观看国产涩涩，分別以灰化法及硫酸硝酸法處理后超碰欧美图片zxxxx，利用原子吸光光度法(Atomic Absorption Spectrometry；AAS)測定鉛及汞之含量80老女人乱婬视频。

Adopting condensation copolymerization between alkylphenol polyoxyethylene ether and methyl aldehyde and using concentrated sulfuric acid sulfonation, which it with sodium hydroxide neutralization, finally acquired sulphonate anionic surfactant, utilize as temperature resistance 538视频在线免费观看、mineral salt tolerance for heavy oil viscosity reducer , research on the performance evaluation, the result indicate, the amount of sulphonate anionic surfactant to be used at 0.2wt%, viscosity reducer rate reached 92.1%; added with 0.5wt%, the calcium and magnesium ions resistance in mineral water up to 800mg/L.

采用辛基酚聚氧乙烯醚和甲醛的共縮聚物與濃硫酸磺化后，再用氫氧化鈉中和后得到磺酸鹽陰離子表面活性劑作耐溫抗礦鹽稠油降粘劑又爽又粗又大一级A片，并對其進行性能評價，結(jié)果表明国产无码专区视频，辛基酚聚氧乙烯醚甲醛共縮聚物磺酸鹽陰離子表面活性劑加量為0.2wt%時黄色免费一区二区三区，降粘率高達92.1%，抗鈣色婷婷综合在线、鎂離子能力達800mg/L欧美激烈精交gif动态图视频。

Technology of sulfuric acid catalyzed ethyl esterification of high acid value tuna oil was studied.

以濃硫酸為催化劑，對高酸值金槍魚油進行了乙醇酯化工藝的研究国内激情网站。

Technical parameters application ＊ egg and milk products including rich fat milk powder,cocoa milk powder, milk powder,eggwhiteetc.＊ food and plant juice including oats,chickenjuice,coffee,speedy dissolving tea,flavorign,protein,bean,peanut protein,protein solution etc.＊ sugar series including corn syrup,com starch,amylaceum,pectin barley sugear,pltassium sorbate etc.＊ pharmaceutical products including chinese medicine extract,pharmiglucin,vitamin,antibiltie,amylase,lipase,protease etc.＊ plastic resins including ab,abs emulsion,pollopas,phenolic resin,,melamac,polyethylene,pvc etc.＊ detergents including normal,high grade washing powder,soap power,soda ash,emulsifier,brightener,phlphoric agent etc.＊ chemical products including sodiumfluoride,basis dye/colour,dye intermediate,compoumd fertilizer,catalyzer,sulphuric agent,amino acid and white carbon etc.＊ ceramics including aluminum oxide,ceramic tile material,magnesium oxide,speckstone etc.＊ others including aluminum hydroside,calcium chloride,staric acid agent etc.

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In the recovery process of electroplating sludge, it researched on acid leaching process, N902—sulfonated kerosene extraction of copper, and copper sulfate stripping and the recovery.

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