Use AgNO3 titration testing,acid and alkali titration, automatic electrical potential titration respectively to detect the dialdehyde content.

通過四種醛基檢測方法的比較，AgNO3滴定法是測定醛基含量最適宜的，從分析手段來講，也是簡便易行成本較低的天天日狠狠插。

In the reaction of a-stannyl radical addition to carbonyl to form six-membered ring, we constructed a sulfonyl group at the a position of the formyl group to inhibit 1,5-H shift in order to increase the cyclization product yield. We obtained 41 % yield of the cyclization product in this system.

在 a-錫基自由基加成到醛基形成六員環(huán)的系統(tǒng)中，我們在醛基的 a 位上加入碸基來抑制 13yz14.com，5-氫轉(zhuǎn)移并提升環(huán)合產(chǎn)物之產(chǎn)率一区二区精品视频在线观看，在這個系統(tǒng)中，我們得到了 41 %的環(huán)合產(chǎn)物亚洲一级黄色片。

Thus, an aldohexose is a hexose that has an aldehyde group; a ketopentose is a pentose with a ketone group, etc.

因此先锋生活资源，己醛糖是帶有醛基的己糖；戊酮糖是帶有酮基的戊糖人人操人人妻人人色，以此類推久久久久国产精品免费免费播放。

Monosaccharides are classified according to (1) the number of carbon atoms present in the molecule and (2) whether they contain an aldehyde or keto group, thus a monosaccharide containing six carbon atoms is called hexose; a monosaccharide containing an aldehyde group is called aldose; and one containing a keto is called a ketose.

單糖的分類按照（1）分子中碳原子的數(shù)目（2）是否含有一個醛基或酮基，因此一個單糖含有6個碳原子叫做己糖片色色；一個單糖含有醛基叫醛糖欧美黄网站在线观看；含有酮基叫酮糖。

In the synthesis process of ligands and their rare earth complexes, metal lithium is used to substitute for n-butyllithium, such as the synthesis of fluorenyl lithium, piperonal dimethyl acetal lithium, and bis (9-fluorenyl) silylene lithium.

合成配體和配合物的中間體均采用金屬鋰代替正丁基鋰欧美一区二区肏屄，如芴鋰嗯好深啊用力哦嗯水好多视频、溴代胡椒醛二甲基縮醛基鋰鹽、甲基苯基雙芴基硅烷雙鋰鹽的制備美女www片免费，方法簡單男女猛烈无遮挡午夜视频，操作簡便，副反應(yīng)少久久午夜中文字幕无码，且鋰鹽的濃度和用量易于控制网站A级。

Under the protection of purified water-free, oxygen-free argon, using Schlenk technique, the rare rarth organometallic complexes containing piperonal dimethyl acetal and dicyclopentadienyl and involving silylene-bridged fluorenyl have been synthesized.

合成了含胡椒醛二甲基縮醛基和二茂基稀土金屬有機(jī)配合物。采用Schlenk技術(shù)好硬好湿好大好爽好紧，在干燥純氬氣保護(hù)下進(jìn)行91POPNY地址。將溴代胡椒醛二甲基縮醛基鋰鹽與二茂基一氯稀土（Ln：Yb，Dy久久久久久九九99精品，Pr欧美黑人黄色大片，La，Sm）反應(yīng)免费黄色网站看看，形成5個新的文獻(xiàn)未曾報道的稀土金屬有機(jī)配合物能看黄的网站在线一区。

Glucose an aldohexose, exists as D and L forms. The furthest asymmetric carbon from the aldehyde group is C-5. D-glucose is called D because the configuration of the atoms bonded to C-5 is the same as for D-gly- ceraldehyde. Similarly D-fructose﹙a ketohexose﹚ is designated D because the configuration

環(huán)狀結(jié)構(gòu)：醛基或酮基跟一個羥基反應(yīng)共價閉合精品精品国产日韩26u，形式上一個糖的醛基和羥基反應(yīng)生成了一個半縮醛，而一個酮基與一個羥基反應(yīng)生成一個半縮酮久久频这里精品99，在同一分子內(nèi)這個反應(yīng)能進(jìn)行操女人的屄的网站，單糖的開鏈?zhǔn)叫纬闪颂黔h(huán)，葡萄糖環(huán)形成一個六碳環(huán)婷婷色香六月综合激情。

An unprecedented combination of photochromism and solvatochromism for a 1,2-bis cyclopentene derivative,1,2-bis(2-methyl-5-formyl-thien-3-yl) perfluorocyclopentene,is observed:1 BMFTP,dissolved in the alcohols,exhibits the largest positive solvatochromic shift in wavelength witnessed to date.

我們發(fā)現(xiàn)了醛基二芳烯BMFTP的溶劑變色效應(yīng)：1在醇類溶劑中毛片视频免费人成观看，醛基二芳烯分子閉環(huán)態(tài)吸收波長將會發(fā)生顯著紅移；2在不同溶劑中亚洲黄色视频网，醛基二芳烯閉環(huán)態(tài)吸收波長不同。

In this paper, the glyoxal structure both in reagent and in bulking solution were detected by infrared spectro and mass spectra, the result shows that there is no aldehyde group but only hydrate existing in both solutions. Besides, the mechanism of the ac-tion between glyoxal and waterlogged wood is discussed and some problems like how to prevent the bulk-ing solution from acidification are also mentioned.

此外亚洲无码一区暖暖，還運(yùn)用紅外光譜和質(zhì)譜法測定了試劑乙二醛和加固液的結(jié)構(gòu)美日韩AV人人操，詳細(xì)討論了乙二酯在試劑和加固液中官能團(tuán)的存在形式和聚合狀態(tài)的細(xì)微變化，指出在二種溶液中并不存在醛基1024手机在线看电影，乙二醛僅以水合物的形式存在并討論了乙二醛與飽水古木的作用機(jī)理亚洲精品国产日本能看黄网站，提出用醇溶液能有效控制乙二醛使用中易返酸等問題。

The famciclovir was synthesized from purine by a series of steps by Acylation, Decarboxylation, Reduction ,and so on; Derivatives of these intermediates is described from the 6-chloro- 9H- purin-2-amine as raw materials in different conditions when the iodine and bromide were synthesized with the addition of two intermediate 6-bromo-9H-purin-2-amine and 6-iodo-9H-purin-2-amine; There is elaborated from the main part of a acetophenone, urineaminohydrochloride, phenylhydrazine, ethyl acetoacetate as raw material through a series of reactions to synthetic 3-phenyl-4-formylphenyl pyrazole and 5-chloro-3-methyl-1-phenyl-1H-pyrazole-4-aldehyde two pyrazole aldehyde, and then with 2-amino-6-chlorine-9-(2-methicillin-oxo-co-methyl-4-yl) purine reaction of the two new pyrazole purine Schiff bases.

本論文主是采用以鳥嘌呤為原料国模私拍一区二区，經(jīng)過一系列的跣园蘼胧悠翟谙吖劭矗基化，脫羧A片欧美AAAAAA，還原等反應(yīng)作用下最終得到了產(chǎn)物2-氨基-9-(4-乙酰氧基-3-乙酰氧基甲基丁基)嘌呤超碰在线播；其中的中間體衍生物主要是闡述從以2-氨基-6-氯鳥嘌呤為原料通過在不同的條件下進(jìn)行溴代與碘代分別合成了另外兩種中間體2-氨基-6-溴鳥嘌呤及2-氨基-6-碘鳥嘌呤；還有一部分主要是闡述從以苯乙酮性爱裸体视频，鹽酸氨基脲精品国产高清毛片A片，苯肼，乙酰乙酸乙酯為原料通過一系列的反應(yīng)先合成3-苯基-4-醛基吡唑及5-氯-3-甲基-1-苯基-1H-吡唑-4-甲醛這兩個吡唑醛福利微拍日韩精品，然后再與2-氨基-6-氯-9-(2-甲氧羰基丁酸甲酯-4-基)嘌呤反應(yīng)得到了兩個新型的吡唑嘌呤席夫堿

AL：醛

文章摘要:以苯乙烯(St)和丙烯醛(Al)為單體,采用無乳化劑乳液聚合的方法制備帶有活潑醛基的功能型苯乙烯/丙烯醛共聚微球.通過傅里葉紅外測試儀(FTIR)測試證明了醛基的存在;利用透射電子顯微鏡(TEM)觀察了微球的形態(tài)和大小;

aldehyde：醛基

其水溶性好,對pH不敏感,通過氨基(amine)、硫基(thio)和醛基(aldehyde)特異性結(jié)合強(qiáng). Cy5的激發(fā)波長為650nm,散發(fā)波長為670至700nm,在紫外波長下,同樣顯示熒光. 在相關(guān)的影像儀器(PHOSPHORIMAGE)上進(jìn)行分析.

aldosterone：醛基甾酮

aldose 醛糖 | aldosterone 醛基甾酮 | aldotetrose 丁醛糖

dialdehyde starch：二醛基淀粉

dialdehyde cellulose 二醛基纖維素 | dialdehyde starch 二醛基淀粉 | dialysis 透析

dialdehyde cellulose：二醛基纖維素

dial needle 針盤針 | dialdehyde cellulose 二醛基纖維素 | dialdehyde starch 二醛基淀粉

dialdehyde stareh：二醛基淀粉

diagonal 對角線;對角線的 | dialdehyde stareh 二醛基淀粉 | diaiysate 透析液

hemiacetal group：半縮醛基

hemi-arid fan 半干旱地區(qū)沖積扇 | hemiacetal group 半縮醛基 | hemiacetal linkage 半縮醛鍵

uronic groups：糖醛基

碳化鈣 calcium carbide | 糖醛基 uronic groups | 天然樹脂 natural resin

aldehyde group：醛基

aldehyde ammonia ==> 醛氨 | aldehyde group ==> 醛基 | aldehyde polymer ==> 醛聚合物

glutaraldehyde-based biocide：戊二醛基殺生物劑

glutaraldehyde 戊二醛 | glutaraldehyde-based biocide 戊二醛基殺生物劑 | glutarate 戊二酸酯