二磷酸

China's current phosphate demand is some 10 Mt/a(P2O5) and the same will be kept still in 2010. So the adjustment of product mix should be emphasized at the enhancement of monoammonium phosphate, diammonium phosphate and NPKs, maintenance of FMP and decrease of SSP.

目前我国化学磷肥的年需求量约1 000万吨P2O5，到2010年前后我国化学磷肥的年需求量仍为1 000万吨P2O5左右，提出我国磷肥产业结构的调整应当积极发展磷酸一铵、磷酸二铵和三元复合肥，稳定钙镁磷肥的生产，适当压缩过磷酸钙的生产。

The separation was achieved within 4 min using a BEH Shield RP18 column (100 mm 2.1 mm, 1.7 μm) with 50 mmol/L monoammonium phosphate solution (pH 6.5) and acetonitrile as the mobile phase.

以BEH Shield RP18柱(100 mm 2.1 mm，1.7 μm)为分析柱，以50 mmol/L的磷酸二氢铵(pH 6.5)和乙腈为流动相进行梯度洗脱，3种磷酸腺苷在4 min内实现了较好的分离。

Cargill Zhongnong China Agricultural Co., Ltd. mainly engaged in agricultural products of amino acid compound fertilizer, urea, diammonium phosphate, monoammonium phosphate, ammonium sulfur, drip irrigation fertilizer, organic fertilizer, pesticides, fungicides, herbicides , plant growth regulators, etc., the company's main brands are "strong mast","best mate","a fire", the company to serve the country industry, contributing to society and independent innovation, the aim of a pragmatic progressive, technology-supported to promote high-tech agricultural technology, agricultural products for the center to the principle of mutual benefit to have an elite team of excellence, marketing planning with professional bodies, as well as groups with more than China, USA, Asia and Thailand branch Zhongnong Cargill Fertilizer Co., Ltd.

中国中农嘉吉农资有限公司主要经营的农化产品有氨基酸复肥、尿素、磷酸二铵、磷酸一铵、硫磷酸铵、滴灌肥、有机肥、杀虫剂、杀菌剂、除草剂、植物生长调节剂等，公司的主要品牌有&肥大壮&、&最佳搭档&、&一把火&，公司以产业报国、奉献社会、自主创新、务实进取为宗旨，以科技为支撑，以宣传推广高新农业技术、农化产品为中心，以互惠互利为原则，拥有一支卓越的精英团队，拥有专业的营销策划机构，以及与美国亚泰集团多家中国分公司中农嘉吉肥业有限公司联合架起一座沟通的桥梁，贯通原有成熟的销售渠道，并扩展公司的经营规模，以便飞速占领世界农资市场，达到资源优化与整合，极力打造中国农资企业第一品牌。

Methods The HPLC was performed on Lichrospher C18 (200 mm × 4.6 mm, 5μm) column. The mobile phase consisted of methanol and 0.02 molL^(-1) monobasic potassium phosphate buffer (60:40). The flow rate was 1.0 mlmin^(-1). The detection wavelength was set at 333 nm.

以汉邦Lichrospher C18 (200 mm×4.6 mm，5μm)为色谱柱，以甲醇-0.02 molL^(-1)磷酸二氢钾溶液（用磷酸调节pH值至4.2）60：40）为流动相，UV检测波长333 nm，流速1.0mlmin^

Methods The HPLC was performed on Shimpack CLCC18(250mm×4.6mm,5μm) column. The mobile phase consisted of metdhanol and 0.02molL-1 monobasic potassium phosphate buffer(65∶35). The flow rate was 0.9mlmin-1. The detection wavelength was set at 291nm.

以岛津Shimpack CLC C18(250mm×4.6mm，5μm)为色谱柱，以甲醇 0.02molL-1磷酸二氢钾溶液(用磷酸调节pH至3.0)(65∶35)为流动相，检测波长为UV291nm，流速为0.9mlmin-1。

After mixed completely, the restorative materials was turned into calcium phosphate monobasic （ Ca(H2PO4)2.H20） and silicate pyrophosphate （ SiP2O7） in crystalline structure.

当两者混合完全后，反映成为磷酸二氢钙（ Ca(H2PO4)2.H20）及焦磷酸矽（ SiP2O7）之结晶构造。

Hypersil of ODS-C18 was used with acetonitrile-0.01mol/L monobasic potassium phosphate-triethylamine phosphoric acid8:92:0.4:0.3） as mobile phase.

色谱柱：依利特 Hypersil ODS柱4.6 mm×250mm，5μm），流动相：乙腈-0.01mol/L磷酸二氢钾溶液－三乙胺－磷酸（8 ： 92 ： 0.4 ： 0.3）。

Methods The HPLC System consisted of Agilent Plus C18 column, acetonitrile-buffer(0.01mol · L-1 monobasic potassium phosphate, contained 0.1% triethyl amine, pH 6.8 )(70∶30) as mobile phase with detection wavelength 282nm.

采用 Agilent Plus C18柱；以0.01mol · L-1磷酸二氢钾溶液（含0.1%三乙胺，用磷酸调节 pH 值至6.8）-乙腈（30∶70）为流动相；检测波长：282nm 。

Finally a process is presented in this paper, which prepares monopotassium phosphate by electrolyzing wet-process phosphoric acid and potassium chloride solutions.

本文提出了电解湿法磷酸生产磷酸二氢钾的工艺流程。

The second electrolytic process is successful, which is for production of monopotassium phosphate, hydrogen and chlorine from potassium chloride and phosphoric acid by using a cationic permselective membrane cell.

利用阳离子交换膜电解氯化钾和磷酸生产磷酸二氢钾并副产氢气和氯气的工艺路线是成功的。

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。