查询词典 sulphate

The main cobaltiferous mineral states are: cobaltiferous ferruginous sulphide, oxide, carbonate, sulphate, clay mineral and silicate.

大横路钴矿床矿石中的钴为多相多态存在，主要的含钴矿物相有含铁的硫化物、氧化物、碳酸盐、硫酸盐、粘土矿物和硅酸盐，其中粘土矿物吸附态的钴约占矿石总钴量的三分之一，这一赋存状态的钴，用通常的选矿方法难以选取，是造成该钴矿床以往钴回收率低的主要原因之一。

In this paper, the nanometer Co-Cu-B alloy powders had been prepared in solution of mixing cupric and cobaltous sulphate, by liquid reduction process, on the condition of pure water and the ethanol-water system, using KBH4 as a reducer, PVP as a dispersant.

本研究采用液相还原法，以KBH4作还原剂，PVP作分散剂，分别在二价钴、铜硫酸盐的纯水体系和乙醇-水体系下合成了纳米Co-Cu-B合金粉末。

By a method using fraction precipitation of ammonium sulphate, ion exchange, modified hydrorylapatite and gel filtration chromatography, we separated and purified two kinds of phycoerythrin(R-PE and r-PE) from Corallina officinalis . The purity standard(ratio of ODs65/OD2go) of R-PE reaches to 11, which is the highest purity comparing with the reported purity of phycoerythrin.

经盐析、离子交换层析、羟基磷灰石吸附层析和凝胶过滤层析等分离纯化方法，从珊瑚藻中分离纯化出两种藻红蛋白，其中R-PE纯度OD_(565／OD_(280)高达11左右，是目前国内外报道的藻红蛋白中纯度最高。

The coarse clastic rock of the braided channel of the fan-delta plain is formed when sedimentary water body is in the salinity stage of active tectonic period, the cotemporaneous cementation is intense and the cementation of the carbonate and sulphate has intense packing action in eogenetic stage of shallow buried.

构造相对活跃期为沉积水体咸化期，主要发育扇三角洲平原亚相的辫状河道粗碎屑岩，同生期胶结作用强，而浅埋藏早成岩阶段碳酸盐和硫酸盐胶结物充填强烈，致使物性进一步变差，并且不利于晚成岩A阶段的溶蚀作用进行。

Ferritin from the liver of a salt water fish, Dasyatis akajei, herein called DALF, was isolated and purified by thermal denaturation, ammonium sulphate fractionation and ammonium reverse extraction, Sephacryl S-300 gel filtration and DEAE- cellulose anion exchange chromatography.

通过热变性处理、硫酸铵分级沉淀、排阻层析和离子交换层析等技术，分离纯化了魟鱼肝铁蛋白Liver ferritin of Dasyatis akaiei。

Parts of diethyl sulphate are now added during 2 hours , the mixture being kept at the further 2 hours.

在两个小时内加入154份二乙基硫酸酯，混合物再额外静置两小时。

The XRD and scanning electron microscopic results show that when the volume ratio between H_2SO_4 and H_3PO_4 is 2:1,the oxidation and intercalation effectiveness will be best,and the expanding volume gets to 102 mL·g~(-1).The energy dispersive X-ray spectrum analyses and the Fourier transform infrared spectra indicate there could be H_3PO_4,H_2SO_4,dihydric phosphate and sulphate containing Mn in the layers of EG.

XRD与扫描电子显微镜结果表明，当硫酸与磷酸体积比为2：1时，氧化-插层效果最佳，膨胀体积达到102 mL·g~(-1)。X射线能谱分析与傅立叶变换红外光谱分析显示，EG片层中可能插入了磷酸、硫酸以及Mn的磷酸二氢盐与硫酸盐等物质。

The loss of K2O in production of potassium dihydrogen phosphate with monocalcium phosphate and potassium sulphate was studied.

研究了用磷酸二氢钙与硫酸钾复分解生产磷酸二氢钾过程中钾的损失问题。

The molecular weight and distribution of samples were determined by sodium dodecyl sulphate-polyacrylamide gel electrophoresis.

用十二烷基硫酸钠一聚丙烯酰胺凝胶电泳方法确定3种样品的相对分子质量及其分布。

The efforts of different purification steps were checked by polyacrylamide gel electrophoresis in the presence of sodium dodecyl sulphate.

各步分离提纯的效果用SDS-PAGE证实。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。