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Sulfur isotope measurements of deposits such as those in the 1.1 Ga Duluth Complex, the Per-mo-Triassic intrusions of the Noril'sk area, and the 1.4 Ga Kabanga intrusions provide evidence for the derivation of S from both sulfide-and sulfate-bearing country rocks. The 1.3 Ga Voisey's Bay deposit provides an example where δ^34 S values of the ores commonly fall within the accepted mantle range of 0±2‰, but detailed studies of Proterozoic metasedimentary country rocks show that their weighted average δ^34 S value is also within this range.

如1.1 Ga的Duluth杂岩、Noril'sk地区二叠-三叠纪侵入岩和1.4 Ga的Kabanga侵入岩体中矿床的同位素测定结果证明来自含化物和酸盐的围岩。1.3 Ga的Voisbey's Bay矿床矿石的同位素δ^34 S值通常落入公认的地幔同位素组成范围(0±2‰)内,而对其元古宙变质沉积围岩进行的详细研究结果显示δ^34 S的平均值也在此范围。

Sulfur isotope measurements of deposits such as those in the 1.1 Ga Duluth Complex, the Per-mo-Triassic intrusions of the Noril'sk area, and the 1.4 Ga Kabanga intrusions provide evidence for the derivation of S from both sulfide-and sulfate-bearing country rocks. The 1.3 Ga Voisey's Bay deposit provides an example where δ^34 S values of the ores commonly fall within the accepted mantle range of 0±2‰, but detailed studies of Proterozoic metasedimentary country rocks show that their weighted average δ^34 S value is also within this range.

如1.1 Ga的Duluth杂岩、Noril'sk地区二迭-三迭纪侵入岩和1.4 Ga的Kabanga侵入岩体中矿床的同位素测定结果证明来自含化物和酸盐的围岩。1.3 Ga的Voisbey's Bay矿床矿石的同位素δ^34 S值通常落入公认的地幔同位素组成范围(0±2‰)内,而对其元古宙变质沉积围岩进行的详细研究结果显示δ^34 S的平均值也在此范围。

Sulfur isotope measurements of deposits such as those in the 1.1 Ga Duluth Complex, the Permo-Triassic intrusions of the Noril'sk area, and the 1.4 Ga Kabanga intrusions provide evidence for the derivation of S from both sulfide-and sulfate-bearing country rocks. The 1.3 Ga Voisey's Bay deposit provides an example where δ34S values of the ores commonly fall within the accepted mantle range of 0 ± 2‰, but detailed studies of Proterozoic metasedimentary country rocks show that their weighted average δ34S value is also within this range.

如1.1 Ga的Duluth杂岩、Noril'sk地区二叠-三叠纪侵入岩和1.4 Ga的Kabanga侵入岩体中矿床的同位素测定结果证明来自含化物和酸盐的围岩。1.3 Ga的Voisbey's Bay矿床矿石的同位素δ34S值通常落入公认的地幔同位素组成范围(0±2‰)内,而对其元古宙变质沉积围岩进行的详细研究结果显示δ34S的平均值也在此范围。

Properties : White crystallization or powder , proportion 1.735 , melting point is 287 ℃, apt to dissolve in water , ethanol and propanone , aqueous solution is neutral , turn into the blood red sulphur cyaniding iron with molysite , reactionless with inferior molysite, salt function turns into dark blue sulphur cobalt cyanide, turn into white sulphur silver precipitating or black sulphur copper cyanide cyanide to precipitate with the silver salt or copper salt function with cobalt.

白色结晶或粉末,比重 1.735 ,熔点 28 7 ℃,易溶于水、乙醇和丙酮,水溶液呈中性,与铁盐生成血红色的氰化铁,与亚铁盐则无反应,与钴盐作用生成深蓝色的氰化钴,与银盐或铜盐作用生成白色的氰化银沉淀或黑色的氰化铜沉淀。

Five of their single crystals were obtained and their structures were determined by X-ray diffraction. By comparison, it was found that dithiocabamate complexes often formed an exactly planar MS4 unit, such as [Mo(R2dtc)2]; and also formed a special MS 5 unit, such as [Cu2(R2dtc)4], the copper atom lies in a distorted square-pyramidal environment.Four kinds of heteropoly acids were prepared and characterized; a series of solid superacid catalyst of supported heteropoly acid were prepared and characterized; regioselectivites of chlorobenzene mononitration with nitric acid with different heteropoly acid on different supports and reaction conditions have been investigated.

培养并解析了5个该类配合物的单晶结构,通过比较,发现二代氨基甲酸盐与过渡金属容易形成四配位结构,金属原子与4个原子共平面,比如二乙基二代氨基甲酸钼;也能形成比较特殊的五配位结构,比如二乙基二代氨基甲酸双核铜,Cu原子与5个S原子相连,处于一个变形的四方锥结构的配位环境。

Glucosinolates and thioglucoside glucohydrolaseform glucosinolate- myrosinase system in plant.

植物体中代葡萄糖苷和葡萄糖苷酶形成代葡萄糖苷-葡萄糖苷酶体系。

In this study, we investigate the effect of benzyl isothiocyanate and phenethyl isothiocyanate on human prostate cancer DU-145 cells, the results demonstrate that benzyl isothiocyanate and phenethyl isothiocyanate induced cause G2 / M phase arrest and apoptosis. These effects are in a dose- and time-dependent manners.

但是苯甲基异氰酸酯和苯乙基异氰酸酯造成人类前列腺癌细胞株DU-145的凋亡机转则尚未有较详细的报导,所以本研究即是探讨苯甲基异氰酸酯和苯乙基异氰酸酯造成人类前列腺癌细胞株DU-145的相关凋亡机转。

The corresponding thiochromanones were synthesized from β-arylthioethers of propionic acid under microwave irradiation in the presence of polyphosphoric acid. Their structures were confirmed by IR, 1H NMR, MS spectra and elemental analysis.

关于这些化合物合成曾有一些报道:以酚及卤代羧酸为原料在回流或超声作用下合成β-芳丙酸,芳丙酸在浓酸或磷酸作用下环化制备色满酮[1,2]。

On the basis of these principles and requirements,in this paper,a new modifier has been synthesized from pyromellitic dianhydride and thiosemicarbazide by the nucleophilic addition of anhydride,the cyclization of acyl thiosemicarbazide in alkaline solution,and the N-hydroxymethylation of the triazole-thione.

本文根据这一思路,以均苯四甲酸二酐和氨基脲为起始原料,通过酸酐的亲核加成反应、酰氨基脲的碱性环化反应、三唑酮环的N-羟甲基化反应合成出了一种新的N-羟甲基三唑酮酸改性剂。

The treatment process of liquid waste in synthesis of cuprous thiocyanate by use of sulfocyanide ion existed in the liquid waste of potassium rhodanate was investigated.

氰酸实验研究了利用氰酸钾生产废液中的氰酸根制备氰酸亚铜过程中合成废液及洗涤废水无害化处理技术。

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