磷酸盐

A method for determination of trace Phosphate in water by flow injection spectrophotometry with Molybdo phosphate and Malachite Green is described.

建立了流动注射-孔雀绿-磷钼杂多酸分光光度法测定水中痕量正磷酸盐的方法。

The series of catalysts for dehydrogention of n-butane to 1-butene, including oxidative dehydrogenation with Vanadium-based 、molybdates、metal pyrphosphates catalysts and catalytic dehydrogenation with Pt-based catalysts and ZSM-5 zeolite, are reviewed, the membrane reactor with catalysts is also discussed .

综述了对正丁烷脱氢制备正丁烯的催化剂体系，包括有氧脱氢中钒基催化剂、钼酸盐系列和焦磷酸盐系列催化剂；催化脱氢中贵金属Pt系催化剂、以ZSM-5分子筛为载体的催化剂以及膜反应器。

The second largest city in Tunisia; located in eastern Tunisia near a phosphate region .

突尼斯的第二大城市；位于突尼斯东部一个磷酸盐区附近。

The effect of the substrate concentrations on 5-fluorouridine production was investigated in the presence of various concentrations of uridine and 5-fluorouracil under the optimal conditions mentioned below. The best conversion yield, 49% was obtained in optimal reaction conditions.

我们也探讨了在不同反应条件下5-氟尿苷的酶促合成，结果表明，产气肠杆菌EAM-Z〓游离细胞以UR和5-FU作为底物合成5-FUR的最佳条件为：最适pH为7.8，最适温度55℃，UR/5-FU为2.8，磷酸盐浓度为30mM，菌体用量为10％，反应时间为9h。

Some examples of solidified acidic wastes are cholesterol, fatty acid, uric acid kidney stone, urates, sulfates, and phosphates.

一些例子凝固酸性废物，胆固醇，脂肪酸，尿酸肾结石， urates ，硫酸盐，磷酸盐。

Of the nitrogen family that occurs commonly in inorganic phosphate rocks and as ''.

有机'。''磷酸盐存在于活细胞中，极其活跃，有多种同素异形体。

Sulphates, nitrates and phosphates are generally considered to be protective towards galvanizing.

硫酸盐、硝酸盐和磷酸盐一般被认为对镀锌层有保护作用。

Examples: sodium chloride; carbonates, sulphates and phosphates of sodium, potassium, and magnesium; besides calcium phosphates and iron.

氯化钠，由钠、钾、镁组成的碳酸盐、硫酸盐、磷酸盐，及磷酸钙和铁等。

There, they will be amplified by powerful strobes as they pass through synthetic neodymium-doped phosphate glass (the pink glass pictured on above).

然后在通过混有钕的合成磷酸盐的过程中，利用强大的频闪放电管放大。

Material and method the acidity in 1.1 principles breast is main with lactic acid plan, consult the method always determines acerbitily in soy, with acidity plan indicates terminus, the color of sample does not have an influence to its. Solution of amortize of standard of mixture phosphate of 1.2 reagent and instrument ①(when 20 ℃ PH is 6.88)[2] : Approach?.40 G is in in 105 ℃ oven in the KH2PO4 of stoving 2 H and water of Yuchun of 3.55 GNa2HPO4 dissolve, attenuant to 1 000 Ml.

为了克服国标中的缺点，采用酸度计法并给出计算结果的公式。1材料和方法1.1原理乳中的酸度主要以乳酸计，参考酱油中总酸的测定方法，以酸度计指示终点，样品的颜色对其无影响。1.2试剂和仪器①混合磷酸盐标准缓冲溶液(在20℃时pH为6.88)[2]：称取3.40 g在105℃烤箱中烘干2 h的KH2PO4和3.55 gNa2HPO4溶于纯水中，并稀释至1 000 ml。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。