查询词典 phosphoric

A new catalytic spectrophotometric method for the determination of trace iodide has been established by reverse flow injection technique based on iodide catalyzing determination reaction of victoria blue with potassium bromate in the phosphoric acid.

基于在磷酸介质中I-对溴酸钾氧化维多利亚蓝褪色反应的催化作用，建立了一种用反相流动注射催化动力学光度法测定微量元素碘的新分析体系，该方法的线性范围为0.2~4.0μg/mL，检出限为0.12μg/mL，相关系数为

Another innovation in this thesis is that another cheap and safecomplexant—sodium chloride has been found, but pyridine, phosphorus oxychloride,and phosphoric anhydride etc mentioned in documents were given up.

本文另一创新点在于为反应找到了一种廉价安全的络合剂—氯化钠，摒弃了文献中常用的吡啶、三氯氧磷、五氧化二磷等络合剂。

A pot culture experiment was carried out to study the effect of different phosphoric fertilizer rates on sucrose content and agronomic traits of winter wheat.

摘要利用盆栽试验，研究不同供磷水平对小麦植株体内无机磷与蔗糖含量及经济性状的影响。

A nucleotide consisting of one molecule each of a phosphoric acid, a sugar, and either a purine or a pyrimidine base .

单核苷酸磷酸、糖、嘌呤或嘧啶碱基中的一种，它组成的一个分子的苷酸

In the pulse plate column of the plate's aperture being 3.2 mm, the open mesh area percentage is 23%, and the distance between plates is 50 mm, extraction: phase ratio 3:1, reaction order: 2~3; washing: phase ratio 6:1; re-extraction: phase ratio 3:1, the product phosphoric acid and all the content of impurity can attain or overmatch the old-style extraction equipment.

在脉冲筛板萃取塔中，在萃取时相比为3：1，反应级为2~3，洗涤时相比为6：1，反萃时相比为3：1的条件下，所得磷酸及各项杂质含量指标均达到或优于老式萃取设备。

In view of high ammonia loss, tail gas washing section is improved. Absorbing ammonia in Venturi tube, first and second washing tower, the concentrated phosphoric acid is pumped to pipe reactor at the neutralization degree of 0.5; all spouts in washing towers are replaced by spiral spouts and equipment anticorrosion is finished. After improvement, the ammonia recovery rate is increased to over 95% from the previous 85%.

由于管式反应器工艺存在氨逸出率高氨损失大的弊端，提出改造尾气洗涤工艺：将用于生产DAP的浓磷酸全部先在文丘里，第一第二洗涤塔吸收氨后，将中和度0.5的浓磷酸洗涤液送管式反应器；各洗涤塔的所有喷嘴改造为不同型号的螺旋喷嘴；并注意解决洗涤设备的防腐问题改造后氨回收率由85%提高到≥95

Companies to provide long-term grade of phosphate rock, phosphoric acid, sodium hexametaphosphate, sodium tripolyphosphate, sodium fluorosilicate, sodium fluoride, SnO, tin sodium, stannous chloride, chlorine dioxide tin, etc. more than twenty kinds of products.

公司长年提供各种品级的磷矿、磷酸、六偏磷酸钠，三聚磷酸钠，氟硅酸钠、氟化钠，氧化亚锡，锡酸钠、氯化亚锡、二氧化锡等二十余种产品。

The sulphur-containing vegetables were treated with a phosphoric acid-assisted to inactivate enzymes, and were cut into pieces and homogenized. Samples were extracted with acetone-hexane (1:1) and partitioned with hexane. The extract was cleaned up with florisil column and detected using gas chromatography with electron capture detection.

采用10%磷酸处理含硫蔬菜，去除含硫化合物的干扰，再用1：1的丙酮－正已烷提取，加入2%的硫酸钠溶液用正已烷进行液液分配，提取液用硅镁吸附剂层析柱净化，用气相色谱－电子俘获检测器检测。

Take Kunming male small rat 40, random cent is 4 groups, be spent according to the strut of small rat ear of xylene be caused by and ply differs those who analyse every groups of medicaments to fight phlogistic action; to take Wistar male bandicoot 40, random cent is 4 groups, according to phosphoric acid constituent amine is opposite ply of area of splash of cutaneous of the back after bandicoot of Yiwen La Zaomo, skin and skin are deliquescent the convergent effect that the optical density influence at acetone solution analyses every groups of medicaments.

取昆明雄性小鼠40只，随机分为4组，根据二甲苯所致的小鼠耳肿胀度和厚度差分析每组药物的抗炎功能；取Wistar雄性大鼠40只，随机分为4组，根据磷酸组织胺对伊文氏蓝造模大鼠后背皮肤的色斑面积、皮肤厚度和皮肤溶解于丙酮溶液的光密度影响分析每组药物的收敛功能。

High voltage anodization of aluminum in mixed electrolytes of phosphoric acid and sodium tungstate could be divided into four stages: conventional anodization stage,initial stage of anodic deposition,rapid growth stage and slow growth stage.

结果表明其氧化行为可以分为四个阶段，即常规阳极氧化阶段、膜层沉积的初始阶段、快速增厚阶段和缓慢生长阶段。

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。