1. A novel sample pretreatment method based on microwave-assisted closed digestion for the digestion of potassium cyanaurite was developed. The conditions for the sample pretreatment and the determination of gold with micro potentiometric titration were optimized.
氰化亚金钾K[Au2]是镀金及其合金工艺中十分重要的化学试剂，被广泛用于镀金行业中。K[Au2]的纯度直接影响镀层的质量和镀液的寿命，因此，对其纯度即Au含量的要求十分严格。
2. By virtue of numerical and analytical method, we got the following results. With the increasing of patch temperature, it is found that (1) the mean open rate of sodium and potassium channels of the HH neuron are decreased, and the mean duration of spikes of membrane potential is also decreased, which are qualitatively consistent with previous experimental results of single ion channel.(2) Under moderate patch size, the mean inter-spike interval of membrane potential first decreases, reach a minimum, and then increases with the increasing of patch temperature.(3) By defining a measure parameterβ, we show that there is a maximal region for the measureβin the patch temperature and patch size parameter plane where the coherence resonance phenomena are very remarkable, and the characteristic time of the output also confirm our result.
其次，在随机的HH模型中，考虑神经元膜上离子通道的随机开关同时受到电压和温度的调控，用数值计算和半理论推导的方法模拟了系统的演化，得到了以下结果：(1)随着温度的增加，HH神经元上的K~+和Na~+通道的平均打开率降低，膜电压脉冲的持续时间也降低，这与单离子通道的实验研究结果定性符合；(2)在膜面积为中等大小时，随着温度的增加，平均脉冲间间隔先降低，达到一个最小值，然后再随温度升高，暗示了存在一个最佳的温度，使系统的输出最有序；(3)通过定义一个相干共振的测量参数β，发现在膜面积和温度的参数平面上，β的取值有一个最大的区域，对应系统的相干共振状态。
3. Potassium ions are required in high concentrations in the cell for efficient protein synthesis, and for glycolysis in which they are an essential cofactor for the enzyme pyruvate kinase.
在细胞中 K+需要维持较高的浓度，以便有效的进行蛋白质合成，另外在糖酵解中 K+也是丙酮酸激酶必需的辅助因子。
4. Maltodextrin, sugar, calcium caseinate, cocoa powder, oil blend, potassium caseinate, emulsifier (471), flavours, vitamins and minerals (calcium, magnesium, vitamin C, zinc, iron, vitamin E, manganese, vitamin A, vitamin D3, pantothenic acid, copper, vitamin B6, vitamin B12, niacin, folic acid, iodine, riboflavin, selenium, biotin), soy lecithin, flavour, vegetable gum 415
麦芽糊，蔗糖，钙，可可粉，混合油，钾，乳化剂，可可香料，维他命和矿物质（钙，镁，铁，维生素C，维生素E，锌，烟酸，锰，铜，维生素A，维生素D3，维生素B6，维生素B3，维生素K，维生素B12，维生素B1，叶酸，核黄素，钼，碘，维生素H，大豆卵磷脂，硒，植物胶
5. Organic matter, pH, cation exchange capacity and contents of potassium, sodium, magnesium, copper, zinc, manganese, cobalt, iron, selenium, iodin and fluorin were determined of rock and soil samples from six main geological background areas within the main ruminant production base, in Yunnan Province, China. Results showed: 1 the red earth area of Paleozoic basalt and red earth area of carbonate the highest; the yellow-red earth area of mixture of carbonate, clasolite and basalt follows, except for its content of Co, which is relatively lower; and the purple earth area of Mesozoic clasolite, the yellow-red earth area of clasolite and the dark red earth area of Precambrian metamorphite are the lowest
对云南省反刍动物生产基地所属的6个主要地质背景区的土壤和岩石样品的K、Na、Mg、Cu、Zn、Mn、Co、Fe、Se、I和F元素及土壤的有机质、阳离子交换量和pH进行测定分析，结果表明：晚古生代玄武岩红壤区和碳酸岩盐红壤区土壤各种矿质元素都比较高，有机质含量与CEC都较高，特别是Ⅴ区最为显著；碳酸岩盐、碎屑岩和玄武岩混合型黄红壤区除了Co含量较低外，其他元素含量都居中等或偏上水平，有机质含量与CEC仅次于第1类背景区；碎屑岩紫色土区、变质岩赤红壤区和碎屑岩黄红壤区大多数矿质养分相对都比较低，有机质含量与CEC最低。
6. But different density dexamethasonecan(10-3 mol/L, 10-5mol/L, 10-7mol/L) can suppress NVD of periphery blood T lymphocyte of small mice of exhausted sport for two weeks set in vitro and haven''t a quantity effect relation:Conchsion:(1)Two kinds of exhausted sport can influence immune system, through lowering T cell activity, but few influence to the B lymphocyte function:(2)Sport stress regulates the immunity function through the ion passage, which explains the potassium passage participates cell-mediated immunity suppression; (3)The exhausted sport should effect the RVD function of potassium ion passage:(4)The exhausted sport sets of cell proliferation may be got difficulty in S period; (5) The exhausted sport for two weeks should arouse cell immunologic derangement:(6)GC influenced potassium passage of the peripheral blood T cell of mouse of exhausted sport for two weeks, which makes the K+ in the cell outflow decrease, then repress RVD
在运动应激中机体细胞免疫和体液免疫表现出来的差异性，其机制可能与T、B细胞K+通道表达的差异性有关；细胞免疫抑制可能与T细胞上K+通道表达下调有关，钾通道参与了免疫抑制。3。力竭运动应激会影响K+通道介导的RVD功能。4。力竭运动应激组细胞增殖可能受阻于S期；两周力竭运动应激可能会导致细胞免疫紊乱。5。应激激素在体外可抑制对照组和应激组小鼠外周血T细胞的增殖功能，地塞米松可抑制T细胞的RVD功能。
7. The nitrogen, phosphorus, potassium absorbing characteristic of high-yleld wheat was studied in this experiment.
试验对高产冬小麦的氮、磷、钾吸收特性进行了研究，结果表明：品39冬小麦在整个生育期内，叶片内N、P、K的累积高峰在拔节期；而茎和鞘中N的累积高峰在灌浆期；P、K的累积高峰在乳熟初期；穗中N、P、K的累积自孕穗到成熟一直增加，到成熟期最大。
8. This investigation describes the one step preparation of potassium carbonate by electrolysis of potassium chloride solution in the electrolyzers with various kinds of Nafion membranes.
采用添加KHCO_3的阴极液循环法，由KCl水溶液的离子膜电解，一次得到K_2CO_3。试验中对Nafion膜的导电度进行了测定，探讨了碱金属阳离子在离子膜中的行为。
9.
9. Results:In therapeautic group, cell edema and injury of cell-organ were ameliated under light-microscope and electro-microscope respectively, Sodium concentration and water content of brain were decreased significantly, while potassium concentration was decreesed.
结果：治疗组光镜下细胞水肿减轻，电镜下细胞器受损减轻，脑组织的含水量及其Na+浓度明显下降，K+浓度升高。
10. The effects of nitrogen, phosphorus and potassium on yield and quality parameters of onion were studied with the design of three factors and quadratic saturation D-optimal regression (310). According to the data obtained, a mathematical model was established, in which N, P and K were independent variables and onion yield and quality parameters were dependent variables.
采用三因子二次饱和D-最优设计(310)，研究了氮磷钾配施对洋葱产量和品质的影响，建立了以氮、磷、钾施用量为变量因子，洋葱产量及品质为目标函数的三元二次数学模型。
11. Potassium dynamics in the root-zone and the non root-zone in yellow cinnamon soil with a rapeseed-rice rotation system was studied through a rhizobox device to provide evidence for research on soil K supplying mechanism and reasonable control of rhizosphere nutrition.
采用分室根箱试验，研究了油菜–水稻轮作条件下黄褐土根区与非根区土壤钾素动态变化特征，以期为土壤供钾机制研究及合理的根际养分调控提供依据。
12. The change patterns of potassium, sodium and calcium contents in different parts of Polygumn sibiricum and the analysis results of EST data which had been sequenced from leaf tissue randomly indicate that there may be a cell Na+ extrusion pathway conducted by Ca2+ signal, similar to the SOS system in Arabidopsis thaliana, in leaf cell.
从碳酸氢钠溶液处理后不同部位K~+、Ca~(2+)、Na~+含量变化及随机测序后的EST数据分析表明，西伯利亚蓼叶组织可能具有与拟南芥SOS系统类似的以Ca~(2+)信号介导的细胞排Na~+途径。
13. This paper presents the experimental data of metastable phase equilibrium of Na+, K+, Mg2+∥Cl-, SO2-4-H2O quinary system at 35 ℃, from which the metastable phase diagram is drawn. It consists of nine regions of crystallization saturated with sodium chloride, potassium chloride, glasserite(3K2SO4*Na2SO4), leonite(K2SO4*MgSO4*4H2O), kainite(KCl*MgSO4*2.75H2O), thenardite(Na2SO4), astrankit(MgSO4*Na2SO4*4H2O), carnallite(KCl* MgCl2*6H2O), magnesium sulfate hexahydrite(MgSO4*6H2O) and bischofit(MgCl2*6H2O).
研究得出（Na+，K+，Mg2+∥Cl-，SO2-4-H2O）五元体系35 ℃时的介稳溶解度数据，绘制了该体系35 ℃的介稳相图，共有9个为氯化钠所饱和的结晶区域：氯化钾、钾芒硝（3K2SO4*Na2SO4）、钾镁矾（K2SO4*MgSO4*4H2O）、钾盐镁矾（KCl*MgSO4*2.75H2O）、光卤石（KCl*MgCl2*6H2O）、白钠镁矾（Na2SO4*MgSO4*4H2O）、硫酸钠、六水硫酸镁（MgSO4*6H2O）和水氯镁石（MgCl2*6H2O）。
14. Lactose*, Skimmed Milk Powder*, Vegetable Oils, Dietary Fibres (Galato-oligosaccharides*, Polyfructose), Calcium Carbonate, Sodium Citrate, Magnesium Citrate, Vitamin C, Emulsifier, Choline Chloride, Iron Sulphate, Zinc Sulphate, Vitamin E, Niacin, Vitamin D, Folic Acid, Copper Sulphate, Vitamin a, Pantothenic Acid, Beta-carotene, Biotin, Vitamin B12, Thiamin, Vitamin B6, Manganese Sulphate, Potassium Iodide, Vitamin K, Sodium Selenite.
乳糖*，*脱脂奶粉，植物油，膳食纤维（低聚半乳糖*，多聚果糖），碳酸钙，柠檬酸钠，柠檬酸镁，维生素C，乳化剂，氯化胆碱，硫酸亚铁，硫酸锌，维生素E，烟酸，维生素D，叶酸，硫酸铜，维生素A，维生素B3，β-胡萝卜素，维生素H，维生素B12，硫胺素，维生素B6，硫酸锰，碘化钾，维生素K，亚硒酸钠。
15. Lactose*, Skimmed Milk Powder*, Vegetable Oils, Dietary Fibres (Galacto-oligosaccharides*, Polyfructose), Calcium Carbonate, Vitamin C, Taurine, Emulsifier, Choline Chloride, Iron Sulphate, Vitamin E, Citidine 5''-monophosphate, Zinc Sulphate, Adenosine 5''-monophosphate, Uridine 5''-monophosphate, Inosine 5''-monophosphate, Niacin, Guanosine 5''-monophosphate, Folic Acid, Copper Sulphate, Vitamin a, Vitamin B12, Pantothenic Acid, Beta-carotene, Biotin, Vitamin D, Thiamin, Vitamin B6, Manganese Sulphate, Potassium Iodide, Vitamin K, Sodium Selenite.
乳糖*，*脱脂奶粉，植物油，膳食纤维（半乳糖寡糖*，多聚果糖），碳酸钙，维生素C，牛磺酸，乳化剂，氯化胆碱，硫酸亚铁，维生素E，Citidine 5''-单磷酸，硫酸锌，腺苷5''-磷酸尿苷5''-磷酸肌苷5''-磷酸，烟酸，5''-鸟苷磷酸，叶酸，硫酸铜，维生素A，维生素B12，维生素B3，β-胡萝卜素，维生素H，维生素D，硫胺素，维生素B6，硫酸锰，碘化钾，维生素K，亚硒酸钠。
16. Hydrolysed Whey Protein Concentrate*, Vegetable Oil, Glucose Syrup, Starch, Dietary Fibres (Galacto-oligosaccharides*, Polyfructose), Calcium Phosphate, Calcium Chloride, Potassium Hydrogen Phosphate, Vitamin C, L-arginine, Taurine, L-histidine, Iron Sulphate, Choline Chloride, Zinc Sulphate, Vitamin E, Inositol, L-carnitine, Niacin, Pantothenic Acid, Folic Acid, Copper Sulphate, Vitamin a, Manganese Sulphate, Beta-carotene, Biotin, Vitamin D, Thiamin, Vitamin B6, Riboflavin, Potassium Iodide, Vitamin K, Sodium Selenite.
水解乳清蛋白浓缩物*，植物油，葡萄糖浆，淀粉，膳食纤维（半乳糖寡糖*，多聚果糖），磷酸钙，氯化钙，磷酸氢二钾，维生素C，L -精氨酸，牛磺酸，L -组氨酸，硫酸亚铁，氯化胆碱，硫酸锌，维生素E，纤维糖，左旋肉碱，烟酸，维生素B3，叶酸，硫酸铜，维生素A，硫酸锰，β-胡萝卜素，维生素H，维生素D ，硫胺素，维生素B6，核黄素，碘化钾，维生素K，亚硒酸钠。
17. From many articles and researches, it can be concluded that sown grass or organism mulching can regulate soil moisture, the contents of organic matter and inorganic nutrients, including whole nitrogen, rapidly available nitrogen, phosphorus, potassium and Fe, Mn, Cu, Zn; soil bulk density and specific weight decrease; soil porosity increases; soil temperature stab...
从大量的文献报道看，生草或生草后通过刈割覆盖园地可以均衡土壤水分含量，增加土壤有机质及土壤无机营养成分———全N、碱解N、速效P、速效K以及Fe、Mn、Cu、Zn的含量，降低土壤容重、比重，增加土壤孔隙度，稳定地温，同时还能增加土壤微生物的数量，提高土壤酶活性等
18. Qm value and K value were increased by potassium addition treatment, indicating that potassium addition promoted phosphorus transformation to more steady forms. This negative effect was evidently corrected by combined use of organic manure and mineral potassium fertilizer.
钾肥的施用增大了石灰性潮土对磷的吸附容量，磷的吸附结合能明显提高，意味着化肥钾的施用可能导致土壤磷向作物难利用方向转化，但有机肥与钾肥配合施用，钾肥的这种不良作用得到明显的改善。
19. Only the K326 can extract the Potassium 60% beyond the control. In the K stress, the activating effect of other kinds of tobaccos were not obvious.
对长石的活化能力只有K326比对照高出60％，其它几种烟草于水活化效果差异不明显。
20. Potassium(K)
20. Finally, the standard molar enthalpy of formation of anhydrous potassium nicotinate K(C6H4NO2) was determined to be ＝－(560.57±1.09) kJ·mol－1 in accordance with Hess law.
最后，依据Hess定律计算出烟酸钾的标准摩尔生成焓为＝－(560.57±1.09) kJ·mol－1。