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Al impurity, the floatabilities of hematite and aegirine were resemble, which is contributed to the existence of structrual iron ion on surfaces of both minerals. It is the structrual iron ion that accelerates the floatability of aegirine greatly and leads to difficult separation with hematite. 2. The basic mechanism of actions of fluorosilicate salts as selective depressants of aegirine during the direct flotation of hematite was investaged detaily by using FTIR and XPS spectrocppy, fluorosilicate salts are poor depressants for hematite, but are very strong depressants for iron-containing silicate such as aegrine in weakly acid medium, which can enlarge the flotation differences between two minerals.

运用X射线衍射、俄歇能谱等测试手段研究了赤铁矿与钠辉石纯矿物的晶体结构特征，表面破裂面的元素组成与赋存状态，发现在白云鄂博不同的矿床（氧化矿段，原生矿段，风化矿段）存在着三种颜色与可浮性均有所差别的钠辉石，其可浮性的差异主要是由于表面含铁量及Ca、Al等杂质含量的不同而引起的，结构Fe〓的存在导致钠辉石可浮性剧增从而与赤铁矿难以分离。

335 Alkalescent ion exchange resin was used in the exchange adsorption of high concentration of copper ion in wastewater from phthalocyanine green production.

采用335弱碱性阴离子交换树脂交换吸附酞菁绿废水中高含量的铜离子。

More information about their structure and function relationship will be meaningful in understanding the molecular mechanism of ion pump and conformation alteration during ion transport and sensory transduction. In this paper, we report screening strains from samples collected from Ebi lake and Altun moutain Aqik lake, Xinjiang Province, and got 60 clonies from them. We choose 8 of them for further investigation and confirmed that they all belong to the Halobacteriaceae genus and through comparasion of several minute diffrerence medium we had the optimal medium for their growth.. Through this procedure we had established a set of methods for screening clonies from wild environment.and isolation and purification of these archaerhodopsin. Furthermore we used PCR method to identify their DNA sequence.

我们从新疆艾比湖和海拔4250米的阿尔金山阿其克库勒湖中采集到水样、土样和冰样，从中分离出60个单菌落，挑选了8个单菌落进行活化和扩大培养，确证了它们属于嗜盐菌属；确定了它们的最适生长条件；建立了一套完整的从野生环境样品中筛选嗜盐菌菌株的完整方法；摸索出了提取它们中的古紫质蛋白的方法；进行了初步PCR鉴定，为后续研究奠定了良好基础。

From the point of ion exchange and chelating ,the high adsorption selectivity was investigated by the peculary structure of amidoxime fiber(combined with crosslinking structure and the maximal conversion of cyano) and Au ion.

从离子交换和螯合吸附的角度，根据偕胺肟基纤维本身的交联结构和最大氰基转化特点以及金离子本身的结构特点对其高选择吸附性能进行了解析。

Chelate fiber with amidoxime group,which is obtained from chemical modification of PAN fiber,is treated with mercury nitrate to prepare anion-exchange fiber.The optimum conditions of the anion-exchange fiber absorption of the thiocyanate ion,such as ion concentration,time,the pH value were studied.

以聚丙烯腈纤维进行NH2OH化学改性制得的含有偕胺肟基的螯合纤维为原料，经Hg(NO3)2化学处理，制得阴离子交换纤维；并以硫氰酸根离子为研究对象，系统地探讨和研究了阴离子交换纤维吸附硫氰酸根离子的最佳条件参数：离子浓度、时间、pH值等。

The experiment was in progress in dyadic foam of intermittence flotation tower,to the positive ion type,the negative ion type,type and amphiprotic type,etc.

结果：泡沫浮选法去除废水中铬离子的表面活性剂，阳离子型和非离子型表面活性剂效果最差，阴离子表面活性剂效果最好。

A systematic study of Fe-ion doping in nanosized TiO2 is performed by measuring their photoreactivies in deradation of benzophenol. The presence of Fe-ion in the TiO2 crystalline significantly influences photoreactivity.

本文采用氙灯模拟日光条件，分别以汞灯和氙灯为光源，系统的研究了掺杂铁离子的二氧化钛纳米粉对苯酚光催化降解规律，发现有铁离子存在的纳米粉降解效果显著提高。

The results showed that loading Ag^＋, Ni^2＋, Cu^2＋ or Zn^2＋ ion on the activated carbon obviously improved its adsorption of benzothiophene, while loading Fe^3＋ or Co^3＋ ion on the activated carbon caused a decrease in its adsorption of benzothiophene in comparison with the original unloaded activated carbon, which was due to the variation of the nature of soft and hard acid on the surface of the activated carbon.

采用密度泛函数理论法计算结果表明，苯并噻吩的电负性χ为2.638，属软碱类物质；由于Ag^＋为软酸，活性炭负载Ag^＋离子，增加了其局部表面的软酸，从而增强了对苯并噻吩硫化物的吸附；由于Ni^2＋、Cu^2＋和Zn^2＋离子属交界酸，负载Ni^2＋、Cu^2＋、Zn^2＋离子增加了活性炭表面的交界酸，也在一定程度上提高了其表面对苯并噻吩硫化物的吸附；当活性炭表面负载了硬酸性Fe^3＋或Co^3＋离子，其局部表面硬酸增大从而降低了其对苯并噻吩的吸附。

The substituted group on the bipyridyl ligand in complex 2 could lose C2H4 neutral molecule under a higher CID fragmentation (such as CID 110 V), and its single charge ion is more stable than its double charge ion.

而络合物2在较高的CID电压下(1l0V)会发生联吡啶环上取代基的中性C2H4小分子丢失，其单电荷离子比二价电荷离子稳定。

The proposed method involves forming coloured ion-pair from ephedrine hydrochloride and bromothymol blue at pH 6.5 extracting the ion -pair thus into chloroform and measuring the absorbance chloroform solution at 414 nm.

根据盐酸麻黄碱在一定pH条件下，可与溴麝香草酚蓝反应生成稳定的络合物这一特性，选择414nm波长处测定其含量。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。