磷酸盐

Fenton reaction was used to produce hydroxyl free radical, Rhodamine B was used as fluorescence indicator, and the detection solution is phosphate salt buffer. The measurement system was set up to measure the effects of nanose scavenging hydroxyl free radical.

Fenton反应产生稳定羟自由基，罗丹明B为荧光指示剂，磷酸盐缓冲液中检测了纳米硒清除羟自由基的效果。

The mobile phase was 30% volume of acetonitrile, 70% volume of phosphate buffer salt(sodium hydrogen phosphate 1.12 g, sodium dihydrogen phosphate 0.18 g, add water to 1000 mL, adjusted to pH 7.6); the detection wavelength was set at 288 nm.

建立HPLC法，色谱柱：Diamonsil C18(5μm， 4.6 mm×250 mm)，流动相：乙腈－磷酸盐缓冲液（取磷酸氢二钠1.12 g，磷酸二氢钠0.18 g，加水溶解并稀释至1 000 mL，调pH值至7.6）（体积比为30：70），检测波长：288 nm。

Analytical C18 column with 15 cm length was used while eluted with mobile phase containing 50 mM phosphate salt buffer: acetonitrile: methanol=67:22:11. The flow rate was set at 1.0 ml/min to complete one sample for OLZ, DMO, and internal standard within 30 minutes.

移动相则为50 mM磷酸盐缓冲液（pH5.7）：ACN：MeOH =67：22：11，在流速为1 ml/min设定下可於30分钟完成一个OLZ、DMO含内部标准品之血样分析；测定灵敏度皆为1 ng/ml。

The SinoChrom ODS-BP column(4.6mm×200mm i.d 5um) was used with the mobile phase of phospioricacid salt buffer solution.The recovery of benzoic acid was 93.2%.

此种方法用醋酸锌和亚铁氰化钾溶液作为沉淀剂，以磷酸盐缓冲溶液作为流动相，用SinoChrom ODS-BP柱（4.6mm×200mm i.d 5um）液相色谱柱分离，用伊利特UV-230+紫外可见检测器进行检测。

The experiment result shows that if Iron in the pickle of copper-smelting smoke ash is removed by Oxygen or oxidation combined with Hydrogen peroxide, Iron removing rate is 90%.

常用除铁方法主要有 [1 ，2 ] ：(1 )直接鼓风氧化生成针铁矿的形式除铁；(2 )用生成磷酸盐沉淀的方法除铁；(3 )用黄钾铁矾法除铁；(4)用过氧化氢氧化除铁；(5 )采用溶剂萃取法分离铁。

Urine tests will be found in urine has many inorganic crystal, including phosphate, carbonate, both alkaline.

尿液化验会发现尿中有很多无机盐结晶，包括磷酸盐、碳酸盐，都呈碱性。

This can be done by adding 1 mL of not less than 10 3 dilution of a 24-hour broth culture of the microorganism to the first dilution (in pH 7.2 Phosphate Buffer, Fluid Soybean–Casein Digest Medium, or Fluid Lactose Medium) of the test material and following the test procedure.

方法如下：将1mL该微生物24小时肉汤培养物的10 3倍稀释液加入供试品的首次稀释液（于pH7.2磷酸盐缓冲液，液体大豆酪蛋白消化物培养基，或液体乳糖培养基中）。

With either method, first dissolve or suspend 10.0 g of the specimen if it is a solid, or 10 mL, accurately measured, if the specimen is a liquid, in pH 7.2 Phosphate Buffer, Fluid Soybean–Casein Digest Medium, or Fluid Casein Digest–Soy Lecithin-Polysorbate 20 Medium to make 100 mL.

不管使用哪一种方法，首先将10.0g固体样品或精密量取的10mL液体样品，放入pH 7.2的磷酸盐缓冲液，或液体大豆酪蛋白消化物培养基，或液体酪蛋白消化物-大豆卵磷脂-聚山梨酯20中，制成100mL的溶液或悬浮液。

After washed with double-distilled water (10min x 5times), the scaffold were freeze-dried again to obtain the EDAC/NHS treated collagen/chitosan scaffold. The scaffolds were immersed in 75% ethanol for over night for sterilization, followed with solvent exchange by PBS for 5 times at least.

将此种多孔支架置于75％乙醇中浸泡消毒过夜，磷酸盐缓冲液反复漂洗5次以上；将配好浓度的纤维蛋白原溶液以50μl／cm~2的量均匀涂覆在其表面，再以等量的凝血酶滴加在其上，室温或37℃温箱静置30分钟，获得胶原-壳聚糖／纤维蛋白胶不对称支架。

Based on the abundant characteristic structures and the high percentage ofnon-centrosymmetric compounds, borates and porophosphstes are the good field to search fornew non-linear optical materials.

硼酸盐和硼磷酸盐不仅有丰富的结构和独特的结构特征，而且非中心对称化合物占有较高的比例，是探索新的非线性光学晶体材料很好的搜索源。

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。