查询词典 mineral acid

Objective:To develop a method for determination of metasilicic acid(H2SiO3) in mineral water at the wavelength of 350 nm and study on the ferrous ion′s interference elimination.

目的：通过实验找出在波长350 nm处测定矿泉水中偏硅酸，建立消除亚铁离子干扰矿泉水中偏硅酸测定的分析方法。

In this paper TiO2/minerals have been prepared using natural minerals as carrier and the industrial metatitanic acid and the industrial sulfate titanium liquid as the raw material based on the effects such as loading capacity of TiO2, specific surface area of minerals, different mineral source and preparation cost.

本研究以天然矿物对TiO_2的负载能力、比表面积、矿物来源、材料成本等因素为依据，通过对天然矿石载体的活化工艺研究和工业偏钛酸、工业硫酸钛液为原料制取TiO_2／天然矿物复合材料的制备工艺研究，以及样品光催化降解有机物的研究，最终制得了具有光催化活性的TiO_2／天然矿物复合材料。

The whole part of Moringa oleifera Lam had development and utilization value. Its leaves had abundant mineral elements, protein, amino acid, vitamin and other nutritional components. The seed of Moringa oleifera Lam had about 34% Moringa oil, 37% protein, sterol and other functional material.

辣木全株在很多方面都具有开发利用价值，辣木叶含有丰富的矿物元素、蛋白质、氨基酸和维生素等营养成分，辣木种子含有约34%的辣木油、37%的蛋白质以及甾醇等功能性物质。

In order to solve the problem of producing large amounts of wastes and undesired o-nitrotoluene in synthesis of p-nitrotoluene with the mixed concentrated mineral acids,the catalytic activity of phosphotungstic acid for selective nitration of toluene was studied and the optimum conditions for preparing the catalyst were investigated.

为解决硝硫混酸对硝化甲苯过程中因甲苯的非选择性硝化产生的o-MNT和大量废酸对环境的危害，研究了磷钨酸对甲苯硝化反应的催化活性。

Variance in chemical components of the former is similarto the latter;the content of α-cellulose,lignin increase with the growth of age,the content of extract,hemicellucose,polysaccharose and mineral elementsdecrease with the grow of age;pH value is acid and increase with growth.

早园竹的化学成分含量随年龄的变异规律基本类似于毛竹，α-纤维素含量、木质素含量随着年龄增大而增大；抽提物、半纤维素、聚戊糖、灰分含量随着年龄增大而降低；pH值呈酸性，酸性随着年龄增大而减弱。

In this article it has been analyzed that the composition of seed oil.mineral trace elements.vitamin C and amino acids in black current and saxifraga.The portion of seed oil in natural black current is 17.9%,In saxifraga it is 22.3%.The linolenic acid composition in natural seed oil is 19.024%.

通过对新疆野生黑加仑和野生马林的脂肪油，8种微量元素，1 7种氨基酸以及维生素 C的含量进行测定得出：黑加仑脂肪油含量为 1 7.9%，马林的脂肪油含量为 2 2 。3 %，其中，黑加仑脂肪油中，r-亚麻酸的含量为1 9.0 2 %，而马林中，其含量为 9.40 %。

The tribological characteristics of the esterified Castor oil is better than those of Castor oil, Di-iso-butyl sebacate, Pentaerythritol esters , mineral oil 150#, bean oil, Rapeseed oil. As part of 12-hydroxyl of Castor oil acid has transformed into ester so that the isomerization degree of esterified castor oil increases with the branching carbon chain extending.

四球机测定酯化蓖麻油的摩擦性能优良；优于蓖麻油、癸二酸二异辛酯、季戊四醇酯、矿物油VG150〓、豆油和菜籽油；酯化蓖麻油的流变性能改进的机理认为是部分12-OH酯化后，直链的植物油结构异构化。

Depression mechanism of sodium silicate on Titanaugite was that silicon acid colloidal particles with negative charge were formed by oxidate polymerization, adsorpted on the mineral's surface, provided the minerals with hydrophilicity, and consequently, Titanaugite was depressed.

水玻璃对钛辉石的抑制作用主要表现在：在弱酸性介质中，通过氧联反应聚合成的、带负电荷的硅酸胶粒在矿物表面吸附后，使矿物表面亲水，阻止了有机捕收剂羟肟酸在钛辉石表面与金属离子键合。

Nutrient composition of Vallisneria natans was analyzed. Results show that V. natans contained 218.4 gkg^(-1) of protein, 51.4 gkg^(-1) of crude fat, 37.6 gkg^(-1) of polysaccharides, 265.7 gkg^(-1) of ash; and 147.6 gkg^(-1) of total amino acids, 55.0 gkg^(-1) of essential amino acid; and a number of mineral elements, such as 60.5 gkg^(-1) of K, 10.9 gkg^(-1) of Ca, 16.3 gkg^(-1) of Fe, 12.7 gkg^(-1) of Na.

沉水植物苦草的营养成分分析结果表明，其蛋白质含量为218.4gkg^(-1)，脂肪含量为51.4 gkg^(-1)，多糖含量为37.6 gkg^(-1)，灰分含量为265.7 gkg^(-1)；氨基酸总量为147.6 gkg^(-1)，必需氨基酸为55.0 gkg^(-1)；含有K、Ca、Cu、Fe、Zn、Mn、Na、Al、Ba等多种矿质元素，其中K、Ca、Fe、Na含量分别高达60.5、10.9、16.3、12.7gkg^(-1)。

The pig receives acid of albumen type, establish, cellulose and the effect of a variety of mineral elements to zincic suction bigger.

猪对锌的吸收受蛋白类型、植酸、纤维素和多种矿物质元素的影响较大。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。