酸浸法

Methods The total cantharidin obtained with acidolysis method and the free cantharidin obtained with direct extraction method were determined in eight species of Meloidae and the control species Huechys sanguinea (Homoptera: Cicadidae) by gas chromatography, and the content of the bound cantharidin in each species was calculated with the content difference between the total cantharidin and the free cantharidin. The relationship between the contents of the bound cantharidin and the contents of Ca and Mg elements in Meloidae were assessed.

利用气相色谱法测定了8种芫菁和作为对照的黑翅红蝉体内总斑蝥素和游离斑蝥素的含量，总斑蝥素含量是通过酸水解法测得的，游离斑蝥素含量是通过直接浸提法测得的，以总斑蝥素与游离斑蝥素含量之差作为结合斑蝥素含量；并比较了结合斑蝥素与钙、镁含量之间的相关性。

In SART law (vulcanization - acidification - return - condense) in, add NaHS to make the prussiate that is united in wedlock with content of cupreous cyanogen complexing is released, with precipitation copper, and be below weak acidity condition gas of HCN of prussiate translate into, in making its return soak loop with free prussiate form.

在SART法(硫化-酸化-返回-浓缩)中，添加NaHS使和铜氰络合物结合的氰化物释放出来，以沉淀铜，并且在弱酸性条件下将氰化物转化为HCN气体，使其以游离氰化物形式返回到浸出回路中。

Methods Porcine bile duct and ureter were treated using detergent sodium dodecylsulphate and 1% Triton X-100 to prepare the acellular lumens matrix. The toxic effects of different concentrations of acellular lumens matrix extract were tested by MTT to assess the proliferation of human scarfskin fibroblasts. The cytotoxicity of the target biomaterial was graded according to the national standards. The growth manner of the human intrahepatic bile duct endothelial cells seeded on the acellular lumens matrix was studied after 20 d under scanning electron microscopy.

采用十二烷基磺酸钠、Triton X-100处理封闭群小香猪输尿管和胆管，获得去细胞管腔基质支架材料； MTT法检测基质支架材料的不同浓度浸提液对细胞增殖的影响，并按医用生物材料细胞毒性分级标准进行评级；在基质支架材料上种植人肝内胆管上皮细胞，于接种后20 d通过扫描电镜观察人肝内胆管上皮细胞在支架上的生长情况。

Releasing dynamics of phenolic acid during Zanthoxylum bungeanum litter decomposition (0、10、30 and 60 days) and the effects of its aqueous extract on soil chemical properties were investigated using the litter bag method.

应用分解网袋法研究了花椒凋落物分解过程中（0、10、30d和60d）酚酸的释放动态及凋落物浸提液对花椒林地土壤化学性质的影响。

The mechanism of removing Zn(superscript 2+) has formed the chelating agent of hydroxamic acid group and Zn(superscript 2+), and the concentration of its maceration extract by water is 1/51 of the neutralization method's, so it is provided with better stability and environment safety.

捕集剂去除Zn(上标 2+)的反应机理为羟肟酸基团与Zn(上标 2+)形成了稳定的螯合物。摘集剂与Zn(上标 2+)反应形成的沉降物的浸出量仅为中和法沉淀的1/51，具有较高的稳定性和环境安全性。

Methods Male SD rats underwent WIR stress for 2,4 and 8 hours. Ulcer index of stomach was chedsed by Guth method, nitrite production was measured by Greiss assay, nitric oxide synthase activities and L-arginine transport rate were determined by isotope tracer method.

大鼠浸水－束缚应激2、4和8 h，以胃溃疡指数作为应激损伤的标识，采用Greiss法测定血小板孵育液中亚硝酸盐NO2(上标-含量；同位素法测其一氧化氮合酶活性和L-精氨酸转运量。

Respectivey, The methylmercury levels of human hair for mercury mine workers, children and pregnam women living near the mine area have been compared with that of those living at nonpol luted .

本文采用气相色谱法测定人发中甲基汞，对人发的酸度、浸取时间、人发与酸液的比例，以及无机汞存在的影响作了测定和选择，方法的平均回收率96.6%，精确度2.8%，方法可靠性用氢化物原子荧光法核对，结果一致。

Through the processes of grinding bastnaesite ore concentrate, mixing the ore powder with NaCO3 in the ratio of 1 to 0.1-0.4, roasting the mixture at 400-800 deg.c for 1-6 hr, elution of the roasted sand with hot water to obtain NaF, drying filtered drag after eluting NaF and mixing the dried drag with ammonium chloride, roasting the mixture at 300-600 deg.c for 1-3 hr, hot water soaking to obtain rare earth chloride solution, extraction with 20% kerosine solution of naphthenic acid, and hydrochloric acid counter extraction to obtain rare earth chloride product.

本发明涉及一种氯化铵法从氟碳铈精矿提取氯化稀土的方法，首先将氟碳铈原精矿磨细，并与NaCO 3 混合，其比例为原矿∶NaCO 3 ＝1∶0.1～0.4，混合均匀后在400℃～800℃焙烧1～6小时，焙砂用热水洗出NaF，洗出NaF的滤渣干燥后与氯化铵混合，于300℃～600℃焙烧1～3小时，再用热水浸取得到氯化稀土溶液，用20％的环烷酸煤油液萃取，再采用盐酸反萃得到氯化稀土产品。

A method for the mercury thiocyanate spectrophotometric determination of chlorine in ore samples was reported in this paper. The sample was sintered with zinc oxide-sodium carbonate and then leached with water.

中文摘要：岩石样品经氧化锌-碳酸钠烧结预处理，用水浸取后澄清，取清液用硫氰酸汞间接分光光度法进行氯的测定。

The results showed an occurrence of phytotoxicity with clear dynamic patterns during Zanthoxylum bungeanum litter decomposition.

应用分解网袋法研究了花椒凋落物分解过程中（0、10、30 d和60 d）酚酸的释放动态及凋落物浸提液对花椒林地土壤化学性质的影响。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。