钴的萃取被亚硫酸盐离子遮蔽。
研究结果表明，大掺量粉煤灰活性粉末混凝土具有较小的体积收缩率，抗碳化、抗氯离子渗透、耐硫酸盐浸蚀性优异。
The result shows that high content fly ash active powder concrete has small volumetric shrinkage and excellent anti-carbonization resistance to penetration of chlorine ion and to sulfate corrosion.
选择硫酸盐-柠檬酸盐体系锌锰合金镀液，研究了阳极、二价锰离子以及连续作用等因素对镀液稳定性的影响。
Herein, zinc-manganese alloy bath containing sulfate and citrate ions was selected, and the effect of anodes, manganous ions and continuous operation on bath stability was studied.
矿物掺和料通过密实填充效应明显改善混凝土抗氯离子渗透性、耐硫酸盐侵蚀性。
Mineral composite could greatly improve the chlorion penetration resistance and the sulphate corrosion resistance by filling up the pores in concrete.
比较以硫酸盐和阳离子交换树脂分别为催化剂合成肉桂酸酯。
Syntheses of cinnamic esters catalyzed by solid acids such as sulphate and ion-exchanged resin were surveyed.
试验结果表明，添加了40%以上粉煤灰的混凝土仍有较好的强度，较好的抗氯离子渗透、抗硫酸盐侵蚀等性能，且具有较小的体积收缩率。
The results show that concrete with 40 percent fly ash has good properties of strength, resistance permeating of Cl-and resistance erosion of sulfate. Besides, it has a small shrinkage ratio.
乳化体系采用烷基硫酸盐、烷基苯磺酸盐等阴离子乳化剂与烷基酚基聚氧乙烯醚、聚乙烯醇等非离子乳化剂进行复合使用。
Emulsifying system using alkyl sulfates, alkyl benzene sulphonate and so on as negative ion surfactant to compound with alkyl, phenolic group polyethylene and polyvinyl alcohol.
利用离子色谱法测定腌制大蒜中亚硫酸盐(SO 32-)。
An ion exchange method was established to measure sulfite (SO32 -) in garlic.
水质。用液态离子色谱法测定已溶解的阴离子。第2部分：在废水中溴化物氟化物硝酸盐亚硝酸盐正磷酸盐和硫酸盐的测定。
Water quality - determination of dissolved anions by liquid chromatography of ions - part 2 : determination of bromide, chloride, nitrate, nitite, orthophosphate and sulfate in waste water.
水质。用液态离子色谱法测定溶解的阴离子。第3部分：铬酸盐碘化物亚硫酸盐硫氰酸盐和硫代硫酸酯的测定。
Water quality - determination of dissolved anions by liquid chromatography of ions - part 3: determination of chromate, iodide, sulfite, thiocyanate and thiosulfate.
用亚硫酸盐法以造纸废液为主要原料，通过络合不同的金属阳离子得到相应的木质素磺酸盐(LSS)。
Using waste liquor of sulfite process as main material and complexing different kind of metal positive ions, the corresponding lignosulfonate (LSS) are prepared.
比较以硫酸盐和阳离子交换树脂分别为催化剂合成肉桂酸酯。
Technology optimization of cinnamic acid synthesized by knoevenagal reaction using organic alkali catalyst;
比较以硫酸盐和阳离子交换树脂分别为催化剂合成肉桂酸酯。
Technology optimization of cinnamic acid synthesized by knoevenagal reaction using organic alkali catalyst;
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