巯基

With butyl xanthate as a collecter, the flotation behavior of jamesonite, pyrrhotite and marmatite, the depressing effects of small mercapto organic depressant (mercaptoacetic acid, mercaptoethanol ) and the effect of Cu2+ ion on depressing ability of mercapto compound were studied through flotation test and infrared spectrum.

摘 要：通过浮选实验、红外光谱测定，考察了脆硫锑铅矿、磁黄铁矿和铁闪锌矿在丁黄药作用下的浮选行为和巯基类小分子有机抑制剂对三种矿物的抑制效果以及Cu2+离子对巯基化合物抑制效果的影响。

The compound can simply and rapidly get into living cells, which has a reaction with free active mercapto group in cells, and fluorescence intensity of the compound is led to be obviously enhancing, thereby the fluorescent probe can be used in fluorescent measurement or fluorescent image of fluactive mercapto group (such as glutathione and the like) in living cells.

该化合物可简单迅速地进入活细胞，与细胞内游离的活性巯基基团发生反应，导致化合物的荧光强度显著增强，进而可以用于活细胞中活性巯基的荧光测定和荧光成像。

Methods Male New Zealand white rabbits were exposed to pentavalent arsenate and trivalent arsenite 5 mg/L for 18 weeks, respectively. Levels of thioredoxin, protein and non-protein sulfhydryl and the activity of thioredoxin reductase and glutathione reductase in liver, and the levels of inorganic arsenic, monomethylarsonic acid and dimethylarsinic acid in blood, urine, and hair were measured after that.

家兔以自由饮水方式慢性暴露于无机3价砷及5价砷，18周后，测定肝脏组织中蛋白巯基、非蛋白巯基、硫氧还蛋白水平，以及硫氧还蛋白还原酶、谷胱甘肽还原酶活性，同时检测血、尿及毛发中无机砷及其代谢产物甲基砷和二甲基砷。

Mainly engaged in sodium azide, barium azide, three phosphorus nitride Friday, phenyl isothiocyanate, 1 - phenyl -5 - mercapto-tetrazole, 4 - dimethylamino-pyridine, 2 - mercapto--5 -- methyl-1,3,4 thiadiazole, N-hydroxy phthalimide, anhydrous betaine and betaine hydrochloride, such as fine chemical raw materials and medicine, pesticide intermediates of the development, production and sales.

主要从事叠氮化钠，叠氮化钡，五氮化三磷，异硫氰酸苯酯，1-苯基-5-巯基四氮唑，4-二甲氨基吡啶，2-巯基-5-甲基-1，3，4噻二唑，N-羟基邻苯二甲酰亚胺，无水甜菜碱及甜菜碱盐酸盐等精细化工原料及医药、农药中间体的开发、生产和销售。

The literature about the synthesis of the ion exchange and chelating adsorbents used in the off-line separation and preconcentration of the noble metals and the development of the on-line microcolumn separation and preconcentration of the noble metals were reviewed. Four silica gel-based adsorbents with rhodanine, 2-mercaptopyrimidine, 2-mercaptothiazoline and isophenylthiourea as the functional groups were first synthesized and applied to the on-line separation and preconcentration of silver, gold, palladium and platinum for their FAAS determination.

本论文在回顾螯合吸附材料的合成及其在贵金属的离线和流动注射在线预浓集分离发展状况的基础上，首次合成了含罗丹宁、2-巯基嘧啶、2-巯基噻唑啉和异二苯基硫脲等四种以硅胶为载体的螯合吸附剂，并用于银、金、钯和铂的流动注射微填充柱在线预浓集分离、火焰原子吸收光谱分析。

Methods Pb and Cd in the samples were enriched in the sulphydryl cotton column under the conditions that the pH of the samples was adjusted to 7 and collected by washing the column with 4 ml of 0.2 mol/L HCl solution.

调节水样pH=7，使水样中痕量铅、镉同时富集在巯基棉柱上，再以4ml 0.2mol/L HCl溶液通过巯基棉柱进行洗脱、收集，以火焰原子吸收光谱法进行测定。

The interaction between MT and AA was expressed by infrared spectra, the functional groups of -SH in MT had lone pair electrons, which could formπ-πwith -C=O in AA. The equilibrium binding experiment and Scatchard analysis showed, at least three kinds of binding sites would exist when MT-imprinted polymer formed, the most adsorption capacities were 3.3896mg/g, 0.9362mg/g, 1.6583mg/g respectively; most terminal thiolate sulfurs in MT were polymerized as binding sites in the process of polymerization, which could observed from TEM, binding capability of other thiolate sulfurs was weak since spatial hindrance existed.

采用红外光谱研究了加入金属硫蛋白后功能单体丙烯酸官能团谱峰的变化，结果表明金属硫蛋白分子中的-SH与丙烯酸中的C=O在氯仿溶液中能形成π-π键，由聚合物的吸附特性和Scatchard分析可以得出，金属硫蛋白印迹聚合物至少存在三种结合位点，其高、中、低的最大吸附量分别为3.3896mg/g、0.9362mg/g、1.6583mg/g；通过透射电镜可以观察到，金属硫蛋白在聚合过程中主要以分子两端的巯基作为结合位点，不同位置的巯基受到的空间位阻不同，导致产生了三种不同的结合位点。

Based on the previous experiments, we choose CNTs/CdS core-shell nanowires as inorganic materials and poly(benzyl-ether) dendrons with thiol functionalities as organic solubilizer. The solubility of CNTs/CdS core-shell nanowires in normal solvents was expected to improve through chemical interactions between core-shell nanowires and solubilizer. The enhanced solubility can improve facility in processability. It also provides a new application method in nanomaterials.

本论文在课题组原有工作的基础上，以制备可溶、易加工的有机-无机复合纳米材料为应用目标，选择具有自己课题组研究特色的CNTs/CdS核壳纳米线结构作为无机材料，选择带巯基的聚苯甲醚树枝状分子作为有机增溶剂，通过带巯基的聚苯甲醚树枝状分子对CNTs/CdS核壳纳米线的化学作用，改善了核壳纳米线在常用有机溶剂中的溶解性能，为材料的湿法加工提供了基础，也为类似纳米材料的应用开拓了一种新的方法。

Mercaptopurine should remain the thiopurine of choice for continuing therapy of childhood lymphoblastic leukaemia.

在儿童淋巴细胞白血病的持续治疗阶段，若要选择巯基嘌呤类药物，仍应选 6-巯基嘌呤。

Mercaptopurine (6MP) as well as 2-mercaptopurine (2MP) can generate an irreversible wave at a silver electrode in sodium phosphate buffers with different pH value.

首次对6-巯基嘌呤(6MP)和2-巯基嘌呤(2MP)在银电极上的伏安行为进行了比较研究，并同时对它们的衍生物的电化学性质进行了探讨。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。