二磷酸

Stock Solution— Dissolve 34 g of monobasic potassium phosphate in about 500 mL of water contained in a 1000-mL volumetric flask.

贮备液：将34g磷酸二氢钾在1000mL容量瓶中溶解于约500mL水中。

Anodic oxide films are treated with galvanization in monobasic ammonium phosphate solution.

将化成箔置于磷酸二氢铵溶液中进行加电处理，探讨了ADP的溶液浓度、处理温度和处理时间对氧化膜升压时间的影响，并找到其最佳工艺参数。

Methods: The HPLC with a C18 column (150mm×4.6mm, 5μm) was used. Methanol-0.05mol/L Potassium phosphate monobasic buffer solution-Acetic acid glacial (40:60:1) was used as mobile phase. The flow rate was 1.0mL/min, and the detection wavelength was at 333nm.

采用高效液相色谱法，用C18色谱柱(150mm×4.6mm， 5μm)，以甲醇-0.05mol/L磷酸二氢钾溶液-冰乙酸(40：60：1)为流动相，流速为1.0mL/min，检测波长333nm。

Distribution ratios of complex extraction for different operation conditions were forecasted. Using mass action law, the liquid-liquid equilibrium models of complex extraction of monobasic and polybasic carboxylic acid have been successfully induced, and physical extraction were also considered in the model. On the basis of orthogonal experiments, the models of equilibrium distribution ratios were established. The processes of complex extraction were tested and verified. Comparing experimental data with model values, it could be held that the regression precision of model was rather high and the model supplied fundamental data for industrial amplification and practical use of complex extraction.

采用质量作用定律分析方法，成功地推导了同时考虑物理萃取的一元及多元羧酸络合萃取通用液-液平衡数学模型，并在正交试验基础上建立了磷酸三丁酯络合萃取丁酸、三烷基胺（7301）萃取丁酸、丁二酸、柠檬酸的平衡分配系数模型，从平衡角度对络合萃取过程进行了验证与预测，通过实验数据与模型计算值比较，表明模型的拟合精度较好，从而为络合萃取技术的工业放大与实际应用提供了重要依据。

The chromatography conditions were as follows: methanol - 0.1mol/L monobasic potassium phosphate (50∶50) as mobile phase, flow rate being 1.0ml/min and detecting wavelength was 290nm.

方法采用高效液相色谱法，色谱柱为Diamonsiltm C18柱；流动相：甲醇-0.1 mol/L磷酸二氢钾水溶液（50∶50）；流速：1.0 ml/min；检测波长：290 nm。

MethodsHigh Performance Liquid Chromatography was performed Diamonsil C18. The chromatography conditions were as follows: methanol - 0.1mol/L monobasic potassium phosphate (50∶50) as mobile phase, flow rate being 1.0ml/min and detecting wavelength was 290nm.

方法采用高效液相色谱法，色谱柱为Diamonsiltm C18柱；流动相：甲醇-0.1 mol/L磷酸二氢钾水溶液（50∶50）；流速：1.0 ml/min；检测波长：290 nm。

The chromatographic conditions were as followed: C8 column, 0.045 mol/L ammonium phosphate monobasic solution∶acetonitrile (2∶1)(adjusted to pH7.35 with triethylamine) as mobile phase, temperature: 40℃, the flow rate: 1.0 ml/min, detection wavelength: 210nm.

采用C8柱，以0.045mol/L磷酸二氢胺溶液∶乙腈(2∶1)(用三乙胺调pH至7.35)为流动相，流速1ml/min，检测波长210nm，柱温40℃。

Methods Using Diamonsil ODS1 C18 Column, acetonitrile- 0.033mol/L Potassium Phosphate Monobasic acid(35:65) as the mobile phase,detection wavelength as 265nm and flow rate was 1.0ml/min.

HPLC用外标一点法，Diamonsil ODS1 C18柱，乙腈- 0.033mol/L磷酸二氢钾溶液(35：65)为流动相，流速为1.0ml/min，λ=265nm。

The chromatographic conditions were as followed: C8 column, 0.045 mol/L ammonium phosphate monobasic solution∶acetonitrile (2∶1)(adjusted to pH7.35 with triethylamine) as mobile phase, temperature: 40℃, the flow rate: 1.0 ml/min, detection wavelength: 210nm.

采用C8柱，以0.045mol/L磷酸二氢胺溶液∶乙腈(2∶1)(用三乙胺调pH至7.35)为流动相，流速1ml/min，检测波长210nm，柱温40℃。结果阿奇霉素的线性范围为50.3～1006μg/ml，平均回收率100.1%，r=1.0000，RSD=0.8%(n=9)。

The chromatographic conditions were as followed: C8 column, 0.045 mol/L ammonium phosphate monobasic solution∶acetonitrile (2∶1)(adjusted to pH7.35 with triethylamine) as mobile phase, temperature: 40℃, the flow rate: 1.0 ml/min, detection wavelength: 210nm.

采用C8柱，以0.045mol/L磷酸二氢胺溶液∶乙腈(2∶1)(用三乙胺调pH至7.35)为流动相，流速1ml/min，检测波长210nm，柱温40℃。结果阿奇霉素的线范围为50.3～1006μg/ml，平均回收率100.1%，r=1.0000，RSD=0.8%(n=9)。

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。