钠的

An ODS column was selected as the separation column at 25 ℃, and pH 4.50, 0.02 mol/L of trisodium citrate-0.05 mol/L sodium phosphate dibasic to methanol (95:5, volume ratio) without ion-pair at a flow rate of 1.0 mL/min.

该实验采用ODS柱，流动相为V(0.02 mol/L柠檬酸三钠-0.05 mol/L磷酸氢二钠)：V=95：5的溶液，用电化学检测器检测。

The methyl pheophorbide-a (5) was oxidized with osmium oxide and sodium periodate to give chlorin 8 which was converted into aldehyde purpure-18 (9) and purpure-7 trimethyl ester (10) by air-oxidation in butanol in the presence of sodium.

选用四氧化锇和高碘酸钠将5氧化成卟吩醛(8)，在丁醇中以丁醇钠作催化剂， 8的氧化和重排反应给出3-甲酰基紫红素-18酯(9)和紫红素-7三甲酯衍生物10。

ANP which widely secreted in newborns evacuates overhydration by natriueresis. Consequently increases functions of all tissues and organs to adapt to the new environment.

围产新生儿分泌大量心钠素的生理作用是通过排钠利尿，消除过多体液，主导器官功能增强和转化，实现胎儿向新生儿转变。

In ovariectomy group, ovaries on both sides were extirpated at sterile. In implantation group, the APA-microencapsulated ovarian cells were implanted into abdomen of the ovariectomized rats. In estrogen replacement therapy group, diethylstilbestrol was injected into abdomen of ovariectomized rats (0.2 mg/kg/3 d).

将40只雌性Wistar大鼠随机分为4组：去势组于无菌条件下切除双侧卵巢；微囊移植组手术摘除双侧卵巢后腹腔移植包裹卵巢细胞的海藻酸钠-多聚赖氨酸-海藻酸钠微囊；雌激素替代治疗组手术摘除双侧卵巢后腹腔注射乙烯雌酚 0.2 mg/kg，每3 d注射1次。

When alkali cellulose is reacted with the sodium salt of chloroacetic acid, the sodium salt of the carboxymethyl ether (cellulose-O-CH2-CO2-Na+) is formed.

当碱性纤维素与盐酸的钠盐反应，羧甲基醚钠盐生成。

Applyingsome inorganic materials, such as sodium silicate, aluminum and potassic sulphate, ferricchloride, sodium aluminate, the author manufactured a new-style JYQ 796 high efficiencyinorganic waterproof and dampproof agent.

针对国际国内各类建筑工程、水利工程、装饰工程等存在着严重的渗水漏水问题，本文以硅酸钠、硫酸铝钾、氯化铁、偏铝酸钠等多种无机原料，成功地研制了一种新型JYQ796型高效无机防水防潮剂，它主要分为无机快速堵漏型(配方4)和高效防水防潮型(配方6)两大类。

Na-grease calcium base grease mixed soap grease, this grease between the performance of Ca-and Na-between the two kinds of grease.

钙钠基润滑脂为混合皂基润滑脂，这种润滑脂的性能介于钙基和钠基两种润滑脂之间。

Dropping Point is grease from the flow of semi-solid into a liquid temperature; the majority of calcium soap grease melting at 160-210 ° F, sodium soap grease 350-350 ° F, lithium soap grease for the 350-400 ° F, so temperature the use of sodium or lithium soap soap better.

流滴点乃润滑脂由半固态变成液态的温度；大部份钙皂脂融化于160-210°F，钠皂脂350-350°F，锂皂脂为350-400°F，所以高温时使用钠皂或锂皂较佳。

The oil shale ash is disintegrated into fine powder less than 150 eye to be calcined at a certain temperature, then sulfuric acid solution is added for performing acid dipping, after solid-liquid separation and solid residue removal, aluminum sulfate solution is obtained and is then filtered after sodium hydroxide solution is added in, further metallic ions as Ca2 , Mg2 , Fe3 , Fe2 and the like are filtered from the solution, thereby sodium aluminate solution is obtained, gas of carbon dioxide is communicated into the sodium aluminate solution to obtain aluminum hydroxide sediment, and after drying and calcining aluminum hydroxide powder is obtained.

将油页岩灰渣粉碎至＜150目的细粉，在一定温度下煅烧，加入硫酸溶液进行酸浸，固液分离，去除固体残渣，得硫酸铝滤液，加氢氧化钠溶液后过滤，滤除溶液中的Ca 2 、Mg 2 、Fe 3 、Fe 2 等金属离子，得偏铝酸钠溶液，向偏铝酸钠溶液通入二氧化碳气体，得到氢氧化铝沉淀，经烘干、煅烧得到氢氧化铝粉末。

The main reason for the deactivation is that the catalysts react directly with methyl formate produced to form alkali formates (sodium formate and potassium formate) and diemthyl ether.

导致催化剂活性降低的主要原因是甲醇钠可以直接与产物甲酸甲酯反应形成甲酸钠和二甲醚。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。