磷酸盐

By means of adjusting the pH value of solution,we eliminated the effect of phosphate on ammonium which is determined by formaldehyde method.

文章通过调节溶液的pH值，消除磷酸盐对甲醛法测定铵根的影响，针对溶液中磷酸盐存在的不同形态，建立了含磷酸盐体系中铵根的快速测定方法。

The profile distributions of silicate, phosphate and nitrate suggest that the organic material decomposition in area is mainly through nitrification during early diagenesis. Based on benthic fluxes of nutrients calculated using Fick's first law, benthic fluxes of silicate, phosphate and nitrate are -886.45~42.62 mol/(m^2d),-3.04~5.83 mol/(m^2d) and -189.43~21.05 mol-(m^2d), respectively, and perhaps silicate and nitrate are one of the major sources of nutrients for bottom water. Our results also reveal temporal and spatial variations of benthic fluxes for silicate, phosphate and nitrate, which may be related to sedimentation environment changes caused by global climatologic change.

在水－沉积物介面附近矽酸盐、磷酸盐和硝酸盐都存在著极陡的浓度梯度，Fick扩散定理的计算结果表明，研究区内矽酸盐、磷酸盐和硝酸盐的海底扩散通量分别为-886.45～42.62mol/、-3.04～5.83mol/和-189.43～21.05mol/，且矽酸盐和硝酸盐主要是从沉积物向底层水体扩散，是底层水体营养盐的来源之一；研究区内矽酸盐、磷酸盐和硝酸盐的海底扩散通量存在著一定的时间和空间变化，这可能与因全球气候变化而导致的沉积环境的改变有关。

Then,the tradition manner of crystallization was evaporating and crystalline,but this paper made the other method . The salt-mixture solution of the disodium hydrogen phosphate and the monometallic odium orthophosphate was put in ethanol.

传统的结晶方法是通过加热蒸发结晶，而本文则采用了一种新的结晶方法，在精调后的正磷酸盐混合溶液中加入乙醇，由于正磷酸盐不溶于乙醇，就会使正磷酸盐溶液达到过饱和，再通过搅拌，析出晶体。

The upper layer, with homogeneous composition, is mainly composed of intact phosphatic foraminifer fossils and nannofossils as well as abiotic carbonate fluorapatites, representing the biologic and autogenic origin. However, the lower layer, with visible metasomatic texture and relatively high Si, Al, K and Fe, is notably different from the upper one, and seems to have been formed mainly by replacement of carbonates.

上层磷酸盐由大量形态结构清楚的磷酸质有孔虫和超微化石以及非生物碳氟磷灰石组成，成分均一，杂质少，表现出生物成因和原生白沉积特点；下层磷酸盐变化复杂，具有特征的交代结构，混杂较高的Si、Al、K、Fe成分，显示以磷酸盐交代碳酸盐成因为主。

Long-term with the Luoyang Refractory Material Research Institute, Beijing University of Science and Technology, Anshan University of Science and Technology, such as metallurgy research institutions to collaborate, has developed the metallurgy, coking industry in various grades×, silica brick, clay brick, magnesia brick, magnesia-chrome brick, MgO-C Bricks aluminum, chromium corundum brick, insulation brick light, etc.; cement industry with anti-spalling×, alkali brick, silicon brick Mo, direct combination of magnesia-chrome brick, periclase-spinel brick, phosphorus acid brick, high-phosphate soft Dutch bricks, special bricks, such as phosphate; generating boiler industry with a variety of brands wear-resistant brick, corundum brick, mullite brick, such as stereotyped products and wear resistant castable, corundum castable, high-strength low cement castable, impermeable material, gravity feed can be plastic, various grades, such as fire-resistant mud Unshaped Materials, in which silica brick and light insulation brick production line for the national output of a single one of the largest production line.

公司长期与洛阳耐火材料研究院，北京科技大学，鞍山冶金科技大学等科研院校开展协作，先后开发出冶金，焦化行业用各种牌号高铝砖，硅砖，粘土砖、镁砖，镁铬砖，铝镁碳砖，铬刚玉砖，轻质隔热砖等；水泥行业用抗剥落高铝砖，耐碱砖、硅莫砖，直接结合镁铬砖、方镁石尖晶石砖、磷酸盐砖，高荷软磷酸盐砖、特种磷酸盐砖等；发电锅炉行业用各种牌号耐磨砖，刚玉砖，莫来石砖等定型产品和耐磨浇注料、刚玉浇注料、低水泥高强浇注料、防渗料，自流料，可塑料、各种牌号耐火泥等不定型材料，其中硅砖和轻质隔热砖生产线为全国单台产量最大的生产线之一。

The results indicated that the reduction of hypophosphite to phosphine was carried out most easily among three kinds of phosphorus compound.

在等量的电子供体下，次亚磷酸盐的去除率分别是亚磷酸盐和磷酸盐的1.23倍和1.15倍，来源：ABC4a论a9文网www.abclunwen.com

A method for the determination of phosphate, pyrophosphate, metaphosphate and total phosphorus in seafoods by ion chromatography was developed.

建立了离子色谱法测定海产品中磷酸盐、焦磷酸盐、偏磷酸盐和总磷的分析方法。

The results showed that at the anaerobic phase, the PHB concentration in the cell and orthophosphate concentration of the anaerobic effluent obviously increased, the poly-P concentration in the cell decreased, and the cucci and bacilli with a size of 1.0~1.5 μm were dominant and formed grapy cellular cluster. At the anoxic phase, the PHB concentration and orthophosphate concentration decreased significantly, the amount of poly-P increased, and the elliptical cucci of 0.5~1 μm and spheral bacilli of 1.0~1.5 μm were dominant. At the aerobic phase, the PHB and orthophosphate concentration almost reduced to zero, the poly-P increased significantly, cucci appeared single or in pair, and the contour of sphere was blur and almost disappeared.

试验结果表明，在厌氧阶段，微生物细胞内PHB的量大幅提高，上清液中磷酸盐的含量上升，聚磷酸盐含量明显下降，粒径为1～1.5 μm、呈球状和棒状的菌群构成的葡萄状细胞簇占居优势；在缺氧阶段，微生物细胞内PHB的量下降，上清液中磷酸盐含量下降，聚磷酸盐含量上升，粒径为0.5～1 μm的椭球菌与1.0～1.5 μm的球杆菌占优势；在好氧阶段，微生物细胞内PHB的量较低或接近零，上清液中磷酸盐的含量接近零，聚磷酸盐含量明显上升，此时粒径1.0～1.5 μm的球菌以单个或成对出现，球菌不再饱满，呈现接近消失的状态。

X=0, 11, 22, 33, 44, and 55 borophosphate glasses series have investigated, and it is found that:(1) both the covalency bonding between Yb〓 ion and oxygen ion and the asymmetry in local structures surrounding Yb〓 ion have strong effects on integrated absorption cross section ∑〓 and emission cross section σ〓 of Yb〓 ion in borophosphate glasses;(2) the borophosphate glasses and borate glasses appear superior as Yb-gain media to the phosphate glasses, although the phosphate glasses have been demonstrated as the most appropriate Ndgain media.

在第二章中，我们对〓（x=0，11，22，33，44，和55）系列的掺Yb〓硼磷酸盐玻璃的吸收光谱和发射光谱特性进行了研究，结果表明：（1）在硼磷酸盐玻璃中，Yb-O键的共价键成分和Yb〓离子周围的近邻结构的对称性两个因素对积分吸收截面∑〓和受激发射截面σ〓的影响都很大；（2）尽管磷酸盐玻璃是最合适的掺钕激光增益基质，但是作为掺镱的激光增益基质，硼磷酸盐玻璃和硼酸盐玻璃都要优于磷酸盐玻璃。

Sediments of this system were sequentially extracted in natural granularity. The result showed that there was a good linear relationship between organic matter and org / bact P contents in sediments. This organic matter in sediments was the source of org / bact P. The total phosphorus in sediments dominated the content of total dissolved phosphorus and phosphate in interstitial water. In addition, there were good relatiohships between total phosphorus in sediment and the total dissolved phosphorus in interstitial water, and between total phosphorus in sediment and phosphate in interstitial water. FeP and AlP in sediments were correlative with Eh and phosphate in interstitial water, respectively. This showed that the FeP and AlP contents were affected by Eh in interstitial water and the total content of FeP and AlP dominated the content of phosphate in interstitial water.

对沉积物—间隙水中磷形态的连续提取分析发现，自然粒度下，沉积物中有机质含量与沉积物中有机/细菌聚合磷存在很好的线性相关性，说明沉积物中有机质是有机/细菌聚合磷的源；沉积物中总磷决定间隙水中总溶解性磷和溶解性磷酸盐的含量，并且总磷与间隙水中总溶解性磷和溶解性磷酸盐存在很好的相关性；沉积物中FeP和AlP分别与间隙水中的Eh和溶解性磷酸盐存在相关性，说明Eh的大小严重影响FeP和AlP的含量，但是FeP和AlP含量之和又主导着间隙水中溶解性磷酸盐的含量。

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。