And 17 were capable of detecting specific metal ions by showing dramatic enhancement of fluorescence. In contrast with 15 and 17, the fluorescence signals of 13 and 14 were inefficiently altered by metal ions. Hence, 15 and 17 were further investigated with detailed 1H-NMR, UV-vis, and fluorescence titrations.

其中8090sex电影网，15和17對(duì)特定金屬離子有明顯的偵測(cè)能力国产精美视频免费观看网址大全下载，混合后螢光強(qiáng)度會(huì)大幅增強(qiáng)影音先锋最新综合站资源，但13及14與金屬離子混合后十八禁羞羞视频爽爽爽免费，螢光訊號(hào)的改變幅度不如15及17的顯著另类性交在线，因此我們只對(duì)15和17進(jìn)行詳細(xì)的1H-NMRa大乳日韩人妻无码网站、UV-vis及螢光光譜的滴定。

The binding molecular mechanism of R,R-SA-Pt and DNA was investigated by 13CNMR and DNA viscosity titrations.

結(jié)果：發(fā)現(xiàn)環(huán)方鉑是通過方酸根的離去與DNA堿基之間形成共價(jià)鍵而結(jié)合的精品国产一区二区不卡，而環(huán)斑鉑是通過嵌插到DNA堿基對(duì)之間以非共價(jià)方式與DNA結(jié)合的欧美一区黄片。

Improve the accuracy of the evaluation of real experimental data from potentiometric titrations and consider samples ranging from vinegar, wine, and juices to humic acids and acid rain.

可以從恒定滴定導(dǎo)入真實(shí)實(shí)驗(yàn)的正確評(píng)估并且可以考慮從醋酸，酒精和果汁到腐敗的酸和酸雨的采樣范圍男人女人天堂视频一区,二区,三区。

Many methods can be used to indicate the endpoint of a reaction; titrations often use visual indicators (the reactant mixture changes colour).

多種方法都能用于指示反應(yīng)終點(diǎn)：滴定常常使用視覺指示劑（反應(yīng)混合物顏色發(fā)生變化）日本色色视屏。

Total alkoloids in CCG were measured by nonaqueous potential titrations and tetrahydropalmatine by thin layer chromatography.

總生物堿的含量用非水電位滴定法測(cè)定，四氫帕馬丁的含量以單波長(zhǎng)反射鋸齒式薄層掃描外標(biāo)兩點(diǎn)法測(cè)定久久久久人妻一道无码AV。

The conditions for direct titrations of potassium in brine and salt with sodium tetraphenylborate as titrant and valinomycin potassium eletrode as indicator are investigated.

以纈氨霉素鉀電極指示亚洲av成人一区二区三区观看，用四苯硼鈉直接電位滴定鹵水和鹽中的鉀。