二酸

LiBOB was synthesized by an improved solid-state method. H2C2O42H2O was dehydrated to get anhydrous H2C2O4, and H2C2O42H2O was mortared with LiOHH2O. The mixture of H2C2O4 and LiOHH2O was preheated at 60 ℃ for 2 h before adding H3BO3 in several times to be mortared. In vacuum dryer, the mixture of the three starting materials was preheated in two steps: at 70 ℃ for 6 h and then at 100 ℃ for 3 h.

用改进的固相法合成一种新型电解质锂盐－双乙二酸硼酸锂：首先将脱去结晶水的H2C2O4与LiOHH2O研磨混匀，在60 ℃预热2 h后分批加入H3BO3，然后，于真空条件下在70 ℃和100 ℃分别保温6 h和3 h，得到LiBOB粗产品。

LiBOB was synthesized by an improved solid-state method. H2C2O4·2H2O was dehydrated to get anhydrous H2C2O4, and H2C2O4·2H2O was mortared with LiOH·H2O. The mixture of H2C2O4 and LiOH·H2O was preheated at 60 ℃ for 2 h before adding H3BO3 in several times to be mortared. In vacuum dryer, the mixture of the three starting materials was preheated in two steps: at 70 ℃ for 6 h and then at 100 ℃ for 3 h.

摘 要：用改进的固相法合成一种新型电解质锂盐——双乙二酸硼酸锂：首先将脱去结晶水的H2C2O4与LiOH·H2O研磨混匀，在60 ℃预热2 h后分批加入H3BO3，然后，于真空条件下在70 ℃和100 ℃分别保温6 h和3 h，得到LiBOB粗产品。

By comparison with docosanoic acid and sulfurized ios-butyl olefin, it was found that when sulfur element was int...

钢球磨损表面XPS分析结果表明，在摩擦过程中硫化廿二酸发生了摩擦化学变化，表面EPMA分析结果表明其表面保护膜富含氧和硫

Sulfurized docosanoic acid ; Rapeseed oil ; Tribological performance ; Synergistic action ; Wear mechanism

硫化廿二酸；菜籽油；摩擦学性能；协同作用；磨损机理

All animals were individually fed with a constant concentration and hay for 8 weeks. Results showed that VB12 production from cobalt in lambs was similar when using cobalt sulphate and cobalt chloride, and was significantly higher (P.05) in cobalt sulphate than in cobalt acetate. However, VB12 production significantly decreased in cobalt oxide treatment compared with other forms of cobalt sources. The relative bioavailability of cobalt sulphate, cobalt chloride, cobalt acetate and cobalt oxide was 100%, 95.66%, 89.50% and 22.56% respectively.

结果表明：1硫酸钴、氯化钴、乙酸钴、氧化钴的相对生物学有效率分别为100%、95.66%、89.50%和22.56%(P.01)；2硫酸钴、氯化钴、乙酸钴和氧化钴组血浆VB12的含量分别为1666.9、1594.5、1493.3和376.1pmol/L，硫酸钴、氯化钴组相近，乙酸钴组稍低，而氧化钴组明显下降，血浆甲基丙二酸含量为2.94、3.01、3.49和3.99μmol/L；同型半胱胺含量为8.91、9.23、9.97和10.78μmol/L，硫酸钴与氯化钴组相近，乙酸钴组稍有增加，而氧化钴组明显升高，3个指标反映了一致的钴营养状况。

It was proved that the sensitivity of analytes could be significantly enhanced by adding small amounts of oxalic acid medium with adjusted nebulizer flow-rate gas, especially for the dements with ionization potential between 9 and 11 eV.

结果表明，随着雾化气流速的调节，低浓度乙二酸介质对所分析元素具有增敏效应，尤其是对电离电位在9～11eV的Be、Zn、Se、As、Sb、Hg等高电离电位元素。

Results of the FTIR spectra indicate that the mercaptosuccinic acid chains are assembled on the gold cores via the Au-S bond.

傅里叶变换红外光谱仪结果表明，巯基丁二酸与金形成了Au—S键，并得到了Auxy形式的MPC。

A method of high performance liquid chromatography was developed for determining the migration of terephthalie acid from plastic foodpackages into food simulants.

建立了高效液相色谱法测定塑料食品包装中对苯二酸向食品模拟物的迁移量。

A variety of aldehydes were converted into acylals in good yields with anhydride in the presence of a catalytic amount of zinc bromide under solvent-free conditions.

以醛和酸酐为原料，溴化锌为催化剂，无溶剂条件下高产率地合成了偕二酸酯（其中醛与苯甲酸酐的反应是首次报道）。

It is made generally with mixed salt of triethanolamine and ammonium hydroxide, twelve-acid isopropyl alcohol amides, for malde-hyde, polyvinyl chloride, wool oil, spice, pigment and water as raw materials.

一般采用硫酸脂肪醇的乙三醇胺与氢氧化胺的混合盐、十二酸异丙醇酰胺、甲醛、聚氧乙烯、羊毛脂、香料、色料和水作为原料。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。