硫化物

Analysis on main points for determination of chlorine dioxide by iodometric method ;2. The experiment results show: To measure sulfide in wastewater by iodometric method may have errors because the interferent can not be removed.

用碘量法测定废水中的硫化物，可能因无法消除干扰而使测定结果存在较大误差；对于同一废水样品，当碘量法和亚甲基蓝分光光度法的测定结果存在显著性差异时，可用Pb2半定量法进行判定；对于某些化纤企业的废水，用氢氧化钾-乙醇溶液洗涤沉淀，可消除碘量法测定的干扰。

Sulfur compounds in the diesel were selectively derived into methylsulfonium salts by reacting with iodomethane in the presence of silver tetrafluoroborate, and characterized by positive-ion electrospray ionization fourier transform ion cyclotron resonance.

在四氟硼酸银的催化作用下，以碘甲烷对直馏柴油进行甲基衍生化反应，使其中的有机硫化物转变成极性较强的锍盐，再用电喷雾－傅立叶变换离子回旋共振质谱仪进行检测。

Finally, it can be concluded for the first time that there was a large time gap between diagentic process of the volcanic rocks related to the Dapingzhang VHMS deposit and the ore-forming process, then a ore-forming model of the Dapingzhang deposit can be made, that is, the deposit passed through two important stages: the ore-forming metals concentrated during formation of the Early Palaeozoic spilite-quartz keratophyre on the island-arc belt, and the mineralization caused by the Late Palaeozoic magmation.

最后，首次提出与块状硫化物矿床有关的火山岩成岩过程和成矿过程可以有较大的时间间隔。在此基础上建立了大平掌矿床的成矿模式，并认为成矿作用可能经历了两个重要阶段，即早古生代岛弧型细碧岩-石英角斑岩建造形成过程中成矿元素的初始富集和晚古生代岩浆活动最终导致成矿。

Dapingzhang copper-polymetallic deposit hosted in spilite-quartz keratophyre formation is volcanic-hosted massive sulfide deposit, which formed during the Late Carboniferous and are contemporary with the intrusion of granodiorite-porphyry.

确定了大平掌铜多金属矿床为赋存于细碧岩-石英角斑岩中的块状硫化物矿床。矿床可能形成于晚石炭世，在时代上与花岗闪长斑岩的侵入相当。

The metamorphic rocks of the area consist of granulite, plagioclase-gneis, biotite leptite and various kinds of schists of granulite to amphibolite facies By reconstruction, this metamorphic series is composed of three original formations which inciude five originai rock types: intermediate-acid volcanics formation at the bottom basic-felsic bimodae volcanits formation in the middle and basic-andesitic-felsic volcanics formation at the top...

区内太古代变质岩系广泛发育，其下部为深变质的麻粒岩相地层，上部为中深变质的角闪岩相地层，后者产出红透山式铜锌矿床多处，以及张胡子沟铜矿床和大荒沟硫铁矿床等一系列块状硫化物矿床(图1)。矿石中铅同位素年令为25～26亿年，在形成时代上可以和鞍本地区鞍山群对比。

Magmatic PGE sulfide deposit in melanocratic rock series is still one of the fundamental sources of PGE resources.

暗色岩套中的硫化物PGE矿床仍然是目前PGE资源的主要来源之一。

Mercapto derivatives yield persulfide products that are potential sources of sulfane sulfur, which may modify protein function by reacting at important cysteinyl domains.

疏基衍生物产生的过硫化物是硫烷硫的潜在来源，后者可通过与重要的半胱氨酸区域反应来调节蛋白功能。

Mercapto deriaties yield persulfide products that are potential sources of sulfane sulfur, which may modify protein function by reacting at important cysteinyl domains.

疏基衍生物产生的过硫化物是硫烷硫的潜在来源，后者可通过与重要的半胱氨酸区域反应来调节蛋白功能。

Locals began mining oxidised vein material and ultimately narrow high grading mesothermal quartz-sulphide veins.

本机开始了采矿被氧化的静脉材料和最后分级mesothermal石英硫化物静脉的狭窄上流。

The elevated gold values in the vivicnity of DDHSLL are attributed to contamination caused by exploitationg of narrow mesothermal quartz-sulphide veins by local miners.

高的黄金价值在DDHSLL vivicnity归因于狭窄的mesothermal石英硫化物静脉exploitationg造成的污秽由地方矿工。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。