硫醇

With regard to physiologically active components, the contents of ergosterol and ergothioneine of mycelia (2056.4 mg/kg dw and 1514.6 mg/kg dw) were higher than others.

在生理活性方面，麦角固醇含量上以杏鲍菇菌丝体(2056.4 mg/kg dw)＞杏鲍菇荞麦(469.2 mg/kg dw)＞杏鲍菇薏仁(443.4 mg/kg dw)；麦角硫因含量也是以杏鲍菇菌丝体最高(1514.6 mg/kg dw)。

Methods for the preparation of isothiocyanates from various starting materials such as tert-alcohol, amine, nitrile oxides and isocyanides were reviewed.

综述了以不同起始原料如叔醇、胺、腈氧化物及异腈化物等合成异硫氰酸醋的方法，并对某些反应机理进行探讨研究。

A new fluorescence quenched method has been found for determination of trace of gold based on the formation of nonfluorescent ternary complex Au- TBT -APDC.The composition ratio of Au to ligandi is 1:2:2.Under the optimum conditions,the linear range of the calibration curve is from 0 to 160ng Au/ml.

本文研究了在聚乙烯醇存在下，金与曙红、吡咯啶二硫代氨基甲酸形成三元络合物的合宜条件，并据此建立了水相荧光熄灭测定痕量金的新方法。

Pyridoxine, pyridoxal , pyridoxamine as well as their phosphated forms are structural analogues in which pyridoxal-5"-phosphate and pyridoxamine-5"- phosphate are the biological active forms in vivo which act as the cofactors of aminotransferases, amino acid decarboxylases, cysteine desufbrase and cystathionine , etc by constant transconversions. Recently, it was discovered that B6 played a novel role in tumor growth suppression.

它包括三种结构十分近似的化合物：吡哆醇(Pyidoxine，PN)、吡哆醛(Pyridoxal，PL)和吡哆胺(Pyridoxamine，PM)，分别以磷酸化的形式发挥作用，其中吡哆醛-5'-磷酸(Pyridoxal-5'-phosphate，PLP)为B_6在体内的活性形式，通过与磷酸吡哆胺(Pyidoxamine-5-phosphate，PMP)的互变，作为多种酶(氨基转移酶、氨基酸脱羧酶、半胱氨酸脱硫酶、胱硫醚酶等)的辅酶而发挥传递基团的作用。

Polymer substrates with dormant groups on the surface were prepared through the recombination of ITX pinacol radicals and surface radicals generated by the abstract hydrogen reaction.The influence of light intensity,irradiation time,concentration of ITX solution and polymer substrates to the dormant group density was investigated respectively.

论文取得的主要结果如下：1、利用夺氢型光引发剂异丙基硫杂蒽酮的夺氢-偶合光化学反应，将ITX嚬哪醇自由基固定到基材表面，制得了表面偶合有休眠基的聚合物基材。

In this thesis, the advantages and disadvantages of potentiodynamic polarization curve, electrochemical impedance spectroscope and coulostatic method for studying corrosion inhibitors in acidic mediums were compared. And then the effect of three popular acid corrosion inhibitors such as thiourea, dodecylamine and propargyl alcohol on the corrosion inhibition behaviors of Q235 steel in acidic solutions were investigated by these techniques. The anodic desorption behavior and extreme value phenomenon of concentration were surveyed thoroughly as well.

本文讨论了动电位极化曲线、电化学阻抗谱和恒电量测量方法在酸性介质缓蚀剂研究中的优势和不足，在此基础上，研究了硫脲、十二胺和丙炔醇等三种常见酸性介质缓蚀剂对Q235钢在酸性溶液中的缓蚀行为和机理，并深入探讨了缓蚀剂的阳极脱附和浓度极值现象。

The electrochemical results of Q235 steel clearly showed that, dodecylamine restrain corrosion mainly by geometric blocking effect; Thiourea decreased the cathodic current effectively and propargyl alcohol suppressed the anodic reaction instead. Inhibition behaviors of PA at different concentrations were investigated as well.

Q235钢在酸性介质缓蚀剂中的电化学结果表明，十二胺以覆盖效应为主，硫脲则主要抑制Q235钢的阴极过程，而丙炔醇属于以抑制阳极反应为主的缓蚀剂。

In previous results, Alkyl substituted propargylic dithioacetals treating with butyl lithium then were allowed to react with carbonyl compounds to form homopropargylic alcohol with high yields and highly regioselective.

在本实验室先前的研究中发现，烷基取代炔丙基硫缩酮与正丁基锂进行开环反应后，若是与羰基化合物反应，能够以高产率、具位向选择性的生成高炔丙基醇。

SM and DTT resulted in stronger degree of reducement in Fv/Fm, qP, F'v/F'm and TPS II when broccoli leaves were treated with strong light. Compared to the control,ΦPS Ⅱ and F'v/F'm after chlorophyll fluorescence induction with light intensity 1000μmolm^(-2)s^(-1) for 660 seconds in SM-treated leaves decreased by about 85.71%, 80.31% in broccoli leaves treated under 1800μmolm^(-2)s^(-2) for 4h and then recovered in the dark for 12h, and in DTT-treated leaves reduced by about 22.45% and 11.48%, respectively.

硫酸链霉素或二硫苏糖醇处理使强光下青花菜叶片的Fv/Fm、光化学猝灭系数、开放的PSⅡ有效光能转化效率和实际光化学效率的下降幅度增大，SM处理的下降幅度大于DDT处理。

The comparison test of this new methodwith spray inoculation method was conducted. The results showed the former method could increase the incidence ofdisease and uniformity than the latter one. Used cotyledon-brushing with conidial suspension and fungicide foliarspraying method, the EC 50 values of hexaconazole, myclobutanil, triadimefon, thiophanate-methyl and chlorotha lonil to Sphaerotheca fuliginea treated in different time after inoculation were determined; the results showed that 96 h was better time for disease severity evaluating.

比较了白粉病菌分生孢子悬浮液涂抹法和喷雾法接种黄瓜幼苗子叶的效果，结果表明，涂抹法发病率高，均匀度更好；测定了接菌后不同时间施药，白粉病菌对己唑醇、腈菌唑、三唑酮、甲基硫菌灵和百菌清等 5 种杀菌剂的敏感性，结果表明，接菌后 96h 施药较为敏感，测得的 EC 50 较小。

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。